CN203777923U - Improved ammonia removal process for reactor effluents - Google Patents
Improved ammonia removal process for reactor effluents Download PDFInfo
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- CN203777923U CN203777923U CN201420150639.3U CN201420150639U CN203777923U CN 203777923 U CN203777923 U CN 203777923U CN 201420150639 U CN201420150639 U CN 201420150639U CN 203777923 U CN203777923 U CN 203777923U
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- quenching
- spraying
- rod
- spray
- sprinkling
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title abstract description 33
- 230000008569 process Effects 0.000 title abstract description 6
- 238000010791 quenching Methods 0.000 claims abstract description 207
- 230000000171 quenching effect Effects 0.000 claims abstract description 207
- 238000005507 spraying Methods 0.000 claims abstract description 186
- 239000007921 spray Substances 0.000 claims abstract description 176
- 239000007788 liquid Substances 0.000 claims abstract description 99
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims abstract description 25
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 24
- 239000010410 layer Substances 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 9
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 9
- 230000001351 cycling effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000005416 organic matter Substances 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims 4
- 230000002411 adverse Effects 0.000 claims 1
- 239000011229 interlayer Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 description 21
- 239000000047 product Substances 0.000 description 10
- 238000013461 design Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- GYCMBHHDWRMZGG-UHFFFAOYSA-N Methylacrylonitrile Chemical compound CC(=C)C#N GYCMBHHDWRMZGG-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002365 multiple layer Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to improved ammonia removal process for reactor effluents, and in particular provides a multi-stage spraying system for quenching reactor effluent gas containing acrylonitrile and ammonia. The system at least comprises a first spraying stick and a second spraying stick, wherein all the sticks extend in a manner of approximately spanning over the diameter of a quenching container; the first spraying stick is positioned below the second spraying stick and is parallel to the second spraying stick; all the sticks comprise arms; the arms extend in a manner of being perpendicular to the corresponding sticks; each arm is at least provided with two extending parts; the extending parts extend in a manner of being approximately perpendicular to the corresponding arms; each extending part comprises a nozzle configured to a hollow conical sprayer for downwards spraying quenching liquid. Spray from the first and second sticks can be combined to supply a downward projection spray wall; the projection spray wall can cover a larger surface area of the horizontal cross section of the quenching container below the first spraying stick than the surface area of the same horizontal cross section independently covered with a first projection spray.
Description
Technical field
The disclosure relates to a kind of improved technique and system for the manufacture of acrylonitrile or methacrylonitrile.Particularly, the improved ammonia that the disclosure relates to the eluting gas (effluent gas) of acrylonitrile reactor removes.
Background technology
Various technique and system for the manufacture of acrylonitrile and methacrylonitrile are known; Referring to for example United States Patent(USP) Nos. 3,936,360; 3,433,822; 3,399,120; With 3,535,849.Propylene, ammonia and oxygen (as composition of air) are supplied to acrylonitrile reactor, and acrylonitrile reactor comprises catalyst and operates as fluid bed.Conventional practice is to operate reactor under the excessive condition of the ammonia in charging for being supplied to the propylene amount of reactor.Due to extreme condition, some in extra ammonia can be combined with propylene and in reactor, burn before forming acrylonitrile at it.Remaining extra ammonia (being commonly referred to " excess ammonia ") leaves reactor in eluting gas.Then, this gas is conventionally advanced through cooler and is arrived afterwards quenching container, to remove excess ammonia.Referring to for example United States Patent(USP) Nos. 3,936,360; 4,166,008,4,334,965,4,341,535,5,895,635 and 6,793,776.
For removing traditional handicraft and the system of excess ammonia, there is some common factors and a common problem.Traditional handicraft and system attempt to remove excess ammonia with the form of ammonium sulfate conventionally, and with minimum processing cost reclaim sulfuric acid ammonium.Ammonium sulfate is conventionally to use sulfuric acid to carry out quenching to remove the product of excess ammonia with the effluent stream to from acrylonitrile reactor.This causes described traditional handicraft in this area and the common issue of system.In order to minimize ammonium sulfate cost recovery, in the production efficiency of acrylonitrile process, there is inherent loss.Reclaim acrylonitrile product in effluent stream and remove in effective mode the technical barrier that excess ammonia has proposed not obtain in traditional handicraft in the art and system cognition or solution.
Utility model content
Therefore, an aspect of the present disclosure be for safety, effectively and there is cost efficiency remove ammonia from the eluting gas of acrylonitrile reactor design standard is provided.Particularly, the utility model relates to and in this technique, realizes the method for expected result and the type of quenching container.
In one aspect, provide a kind of device, for comprising the quenching of the reactor eluting gas of acrylonitrile and ammonia.This device comprises quenching container, and this quenching container has first and second portion, and first is positioned at below second portion.The first of quenching container comprises the entrance that is configured to receive air-flow, and air-flow comprises acrylonitrile and ammonia.The second portion of quenching container comprises multistage sprinkling system, and this multistage sprinkling system is configured to receive quenching liquid, and wherein, quenching liquid comprises acid.Multistage sprinkling system at least comprises that the first sprinkling rod and second sprays rod, and each rod is roughly crossed over the diameter of quenching container and extended.Each sprays bar construction and becomes to receive quenching liquid.First sprays rod is positioned at the also parallel with it of the second sprinkling rod below.Each rod comprises arm, and arm is approximately perpendicular to its corresponding rod and extends, and each arm at least has two extensions, and extension is approximately perpendicular to its corresponding arm and extends.Each extension comprises nozzle, and this nozzle structure becomes to spray the hollow cone spraying of quenching liquid downwards.Spraying from the first and second rods provides downward projection spraying wall in combination, and this projection spraying wall is compared the more high surface area of the cross section parallel with container diameter that has covered quenching container with the surface area being covered separately by the first projection spraying.
Of the present disclosure above and other side, feature and advantage will from the following detailed description of the illustrated embodiment of reading by reference to the accompanying drawings, become clear.
Accompanying drawing explanation
The more complete understanding of example embodiment of the present utility model and its advantage can consider that the following explanation of accompanying drawing obtains by reference, and wherein similar label is indicated similar feature, and wherein:
Fig. 1 is according to the side view of the quenching container of at least one aspect of the present disclosure;
Fig. 2 is that first of the quenching container obtained according to the 2-2 line along in Fig. 1 of at least one aspect of the present disclosure sprays excellent bottom view; And
Fig. 3 is that second of the quenching container obtained according to the 3-3 line along in Fig. 1 of at least one aspect of the present disclosure sprays excellent bottom view.
Fig. 4 illustrates the flow chart according to aspect of the present disclosure.
The specific embodiment
In one aspect, provide a kind of device for to comprising that the reactor eluting gas of acrylonitrile and ammonia carries out quenching.This device can be suitable as single-stage quenching device, thereby means that the quenching (wherein removing excess ammonia from reactor eluting gas) of reactor eluting gas completes single quenching container.This device comprises quenching container, and this quenching container has first and second portion, and first is positioned at below second portion.The first of quenching container comprises entrance, and this entrance is configured to receive reactor effluent stream, and this air-flow comprises acrylonitrile and ammonia.The second portion of quenching container comprises multistage sprinkling system, and this multistage sprinkling system is configured to receive quenching liquid, and wherein, quenching liquid comprises acid.Multistage sprinkling system at least comprises that the first sprinkling rod and second sprays rod, and each rod is roughly crossed over the diameter of quenching container and extended.First sprays rod is positioned at the also in parallel of the second sprinkling rod below.Each rod comprises arm, and arm is approximately perpendicular to its corresponding rod and extends, and each arm has at least two extensions, and extension is approximately perpendicular to its corresponding arm and extends.Each extension comprises nozzle, and this nozzle structure becomes to spray the hollow cone spraying of quenching liquid downwards.Spraying from the first and second rods provides downward projection spraying wall in combination, and this projection spraying wall is compared the more high surface area of the cross section parallel with container diameter that has covered quenching container with the surface area being covered separately by the first projection spraying.In one aspect, each hollow cone spraying defines and is positioned at below its corresponding nozzle and from equidistant center or the center line of hollow cone spraying wall.
In one aspect, multistage sprinkling system is crossed over about 85% or more extension of quenching container diameter, in one aspect of the method, about 90% or more, in one aspect of the method, about 95% or more, and in one aspect of the method, about 99% or more.In related fields, multistage sprinkling system is effectively for providing a kind of spray pattern, this spray pattern covers about 85% or more of quenching container diameter, in one aspect of the method, about 90% or more, in one aspect of the method, about 95% or more, and in one aspect of the method, about 99% or more.
In one aspect, each extension the far-end of extension have towards below nozzle.In one aspect, first sprays excellent nozzle can be spaced apart, so that overlapping with a part for the second hollow cone spraying of the quenching liquid of second nozzle from the first sprinkling rod from a part for the first hollow cone spraying of the quenching liquid of the first nozzle of the first sprinkling rod, so that the first overlapping of quenching liquid to be provided, this first overlapping first overlapping center having below the first nozzle.
In one aspect, second sprays excellent nozzle can be spaced apart, so that overlapping with a part for the second hollow cone spraying of the quenching liquid of second nozzle from the second sprinkling rod from a part for the first hollow cone spraying of the quenching liquid of the first nozzle of the second sprinkling rod, so that the second overlapping of quenching liquid to be provided, this second overlappingly has the second overlapping center.
In one aspect, the first top, overlapping center that is centered close to the first sprinkling rod that the second hollow cone that sprays at least one nozzle of rod is sprayed is also aimed at it vertically, wherein, the surface area of the par cross section covering separately with quenching liquid spraying by from the first sprinkling rod is compared, from the quenching liquid spraying of the second sprinkling rod with cover first from the quenching liquid spraying of the first sprinkling rod and spray more in the surface area of level cross-sectionn of rod quenching container below.
In one aspect, first sprays excellent nozzle can be spaced apart, so that overlapping with a part for another hollow cone spraying of quenching liquid from least one adjacent nozzle from a part for each hollow cone spraying of the quenching liquid of each nozzle of the first sprinkling rod, so that a plurality of first overlapping of quenching liquid to be provided, wherein, each first overlappingly has the first overlapping center.From a plurality of first overlapping and non-overlapped parts of each hollow cone spraying of the quenching liquid of the nozzle of the first sprinkling rod, jointly form from the first projection of the quenching liquid of the first sprinkling rod and spray.
In one aspect, second sprays excellent nozzle can be spaced apart, so that overlapping with a part for another hollow cone spraying of quenching liquid from least one adjacent nozzle from a part for each hollow cone spraying of the quenching liquid of each nozzle of the second sprinkling rod, so that a plurality of second overlapping of quenching liquid to be provided, wherein, each second overlappingly has the second overlapping center.From a plurality of second overlapping and non-overlapped parts of each hollow cone spraying of the nozzle of the second sprinkling rod, jointly form from the second projection of the second sprinkling rod and spray.
In one aspect, second sprays excellent nozzle can be spaced apart, so that the second center of spraying at least one hollow cone spraying of rod is offset vertically from the center of the hollow cone spraying of the first sprinkling rod.In one embodiment, the second center of spraying at least one hollow cone spraying of rod is aimed at vertically with first at least one first overlapping center of spraying rod.The first projection spraying and the second projection spraying provide downward spraying wall capable of being combinedly, and this spraying wall is compared with the surface area of the par cross section being covered separately by the first projection spraying and covered first and spray more in the surface area of level cross-sectionn of the quenching container below excellent.In one aspect, the second projection spraying is filled from a plurality of gaps between the hollow cone spraying of the quenching liquid of the nozzle of the first sprinkling rod.
An object of the present disclosure be for safety, effectively and there is cost efficiency and remove ammonia from the eluting gas of acrylonitrile reactor design standard is provided.Particularly, the disclosure relates to and in this technique, realizes the method for expected result and the type of quenching container.Found that following design feature forms about removing the two outstanding quenching performance of excess ammonia and recover acrylonitrile product.
Those skilled in the art will recognize that, according to the disclosure, disclosed apparatus and method can be used for effective neutralization and/or the quenching of kinds of processes air-flow in this article.Preferred process gas flow is acrylonitrile reactor effluent.No matter the temperature of quenching operation how, its scope may be the outlet temperature of about 90 °F to 200 °F, and the spraying quenching design of the hollow cone of multiple-layer overlapped spraying goes out product from reactor stream all the time and removes high-caliber excess ammonia.
In order to supply multilayer spraying quenching, a succession of sprinkling rod can append to quenching container, and this quenching container has appropriate size for reactor stream goes out the expectation linear speed in the upward direction of product.Spray rod and can comprise circular rod, for example round tube.Spraying rod can, towards below, make gravity when not using will make liquid discharge and spray from manifold or rod.
Those skilled in the art will recognize that, according to the disclosure, spraying excellent quantity can change, and flows out the expectation quenching of product with realization response device.For example, spray excellent quantity and can be changed to 10 from 4.Those skilled in the art will recognize that, according to the disclosure, spray the distance variable between rod, with realization response device, flow out the expectation quenching of product.For example, spray rod and can have the interval of about 0.65 meter to about 1.4 meters, in one aspect of the method, about 0.75 to about 1.3 meters, in one aspect of the method, about 0.85 to about 1.2, and in one aspect of the method, about 0.95 to about 1.1.
Based on recycling sulfuric acid: the ratio of fresh sulfuric acid, comprise sulfuric acid and can be approximately 12:1 to 25:1 to remove the cycling rate of the liquid quenching fluid of excess ammonia, to allow the enough mass fluxs through device, thereby in quenching container or tower, provide good liquid distribution to contact with the vapor/liquid of liquid with steam, for effective ammonia, remove.In one aspect, this cycling rate can be approximately 18:1.
With inclined-plane entrance and without the hollow cone spray nozzle (spray nozzle) of internal part can be used for reducing or prevent can accumulation in quenching stream the obstruction that causes of any solid circle.
Independent isolating valve, and flowmeter can be used on and spray on each in rod, with adjustment and the check of transportation flux.
Sulfuric acid can be added into recirculation so that enough sour recirculation quenching liquid stream to be provided, and to keep the constant quenching between about 3.0 and 6.0 to flow pH, in one aspect of the method, between about 4.5 and 6, and 5.5 are preferred pH.
The operating temperature that depends on quenching container, the ammonium sulfate concentrations in circular flow can remain on to be calculated by weight from about level of 3% to 20%.Operation under the higher-end of ammonium sulfate concentrations scope can be from the purification of the manufacturing process for acrylonitrile and the interpolation of the clean current of reclaimer operation or the recirculation of clean current, to keep suitable ammonium sulfate level in expected range.
From the quenching organic matter removal that drifts, can complete by conventional method, the method utilizes vapor stream (overhead vapor stream) that stripper (stripper) or waste water post distillate by tower top from drifting except the organic matter of expectation, and the vapor stream that this tower top distillates loops back quenching container and turns back in the vapor stream of spraying in container reactor effluent below.
The circular cone of the quenching liquid spraying from hollow cone can have the angle of about 70 to 100 degree.Hollow cone spraying can spread all over container and be evenly spaced apart on horizontal plane, make from the spray pattern of the sprinkling outlet projection of 70 to 100 degree of circular cone have approximate 50% overlapping.Spraying excellent succeeding layer can be spaced apart, makes each layer circular cone below be centrally located in the overlapping center from layer above.Once set up double-deck pattern in the place of the abundant covering from chamber wall to container center, this pattern can repeat in each extra paired layer.As described in the various embodiment about herein, the vertical aligning at nozzle and overlapping center can be applicable to the sprinkling rod layer of two direct neighbors or has two sprinkling rods of sprinkling rod layer (the sprinkling rod layer for example replacing) between two parties.
Can use the spraying circular cone nozzle of 1 inch of entrance of nominal.This nozzle can spray quenching liquid by outlet, and this exit face downwards and can be perpendicular to spraying rod.This structure can be used for promoting the simple and easy installation and removal of nozzle, and draining completely while not using.
In some instances, the comparable equipment height with the quenching system illustrating in the disclosure of the organic efficiency loss in traditional handicraft and system surpasses 10%.Therefore, for example, for the given expectation ammonia from reactor effluent reclaims degree (95% reclaiming or 99% recovery), the whole height of quenching container, or when obtaining expectation recovery, realize the required height of each theoretical steam-fluid balance contact phase, can surpass 10% with respect to this traditional handicraft minimizing, thereby cause the minimizing of material and running cost.
Desirable, about the ammonia in effluent stream, remove with acrylonitrile product and reclaim the two, for the eluting gas to from acrylonitrile reactor, carry out quenching and as far as possible effectively complete to remove the method for excess ammonia.
Now with reference to accompanying drawing, technique of the present disclosure is described in more detail.
Fig. 1 is according to the side view of the quenching container 10 of at least one aspect of the present disclosure.Quenching container 10 is configured to reactor effluent 12 to carry out quenching.Reactor effluent 12 can obtain by propane or the oxygen containing gas of propylene, ammonia and bag in the direct reaction at conversion zone (not shown) in the situation that there is catalyst.Reactor effluent 12 is delivered to quenching container 10 via conduit 14, wherein, the reactor eluting gas of heat is by obtaining coolingly with contacting of aqueous flow (aqueous stream) or quenching liquid 16, and aqueous flow or quenching liquid 16 enter quenching container 10 via pipeline 18,20,22 and 24.The cooling eluting gas that comprises acrylonitrile (comprising accessory substance, such as acetonitrile, hydrogen cyanide and impurity) then can be advanced through entrainment separator 26, and then advances to absorbing column (not shown).
As shown in Figure 1, quenching container 10 comprises first 28 and second portion 30, and wherein, first 28 is positioned at below second portion 30.The first 28 of quenching container 10 comprises entrance 32, and entrance 32 is configured to receive air-flow or reactor effluent 12, and wherein, air-flow or reactor effluent 12 comprise acrylonitrile and ammonia.The second portion 30 of quenching container 10 comprises multistage sprinkling system 34, and multistage sprinkling system 34 is configured to receive aqueous flow or quenching liquid 16, and wherein, aqueous flow or quenching liquid 16 comprise acid 36.Acid 36 can be added into quenching liquid 16 via pipeline 38 at joint (juncture) 40 places.Acid 36 can be any suitable acid, for example sulfuric acid (such as the sulfuric acid of 98 % by weight).Quenching liquid 16 comprises the bottom 42 of leaving quenching container 10 liquid efflunent that passes pipeline 44.Water can be added into quenching container 10 via pipeline 46 by entrance 48, or can be added into quenching liquid 16 or other place in stream 17,44 and 65 liquid recirculation loops that form.Quenching liquid 16 utilizes pump 50 by pipeline 44, circulate and get back to pipeline 18,20,22 and 24.Stream 67 can be used as a part for the liquid efflunent leaving through pipeline 44 and is removed, to carry out to keep relative constant mass flow by offsetting via pipeline 38 and 46 liquid that add in liquid recirculation loops.Stream 67 removes the neutralization reaction product (for example ammonium sulfate) of formation, and is of value to the accumulation that prevents unwanted product (such as corrosion product) in liquid recirculation loops.Leave the effluent of the bottom 42 of quenching container 10 and can put 52 places from pipeline 44 extractions in siphon.
Multistage sprinkling system 34 at least comprises the first sprinkling rod 54 corresponding with pipeline 18 and the second sprinkling rod 56 corresponding with pipeline 20.As shown in Figure 1, multistage sprinkling system 34 also comprises sprinkling rod 58 and with the pipeline 24 corresponding sprinkling rod 56 corresponding with pipeline 22.Spraying rod 54,56,58 and 60 roughly crosses over the diameter 62 of quenching container 10 and extends.As shown in the figure, spray rod 54 and be positioned at below sprinkling rod 56, and be roughly parallel to sprinkling rod 56.Spray rod 58 and be positioned at above sprinkling rod 56, and be positioned at below sprinkling rod 60.Spray rod 58 and be roughly parallel to sprinkling rod 60.
In one aspect, controller 11 can be configured to process one or more signal corresponding with recording parameter, and recording parameter is for example the temperature of being measured by temperature controller (Fig. 1 is not shown).Controller 11 can be configured to determine and whether record parameter higher or lower than predefined parameter scope.Those skilled in the art will recognize that, according to the disclosure, record parameter and can be any suitable parameter useful in the operation of quenching container, the temperature of for example being measured by the temperature controller of pre-position, or the liquid level of the water level controller (Fig. 1 is not shown) in the compartment (boot) 45 of quenching container 10 or flow controller (Fig. 1 is not shown) measurement.If controller 11 can be configured to record parameter below or above predefined parameter scope, via communication line or radio communication (Fig. 1 is not shown), adjust the operation of one or more equipment.For example, controller 11 can be configured to adjust the quantity of the stream that is sent to quenching container 10, for example, the stream of the stream of reactor effluent 12, (being sent to quenching container 10 by pipeline 46) current and/or quenching liquid 16 (comprising the acid 36 transmitting by pipeline 38).Those skilled in the art will recognize that, according to the disclosure, controller 11 can be configured to operation and/or other pump being associated with above-mentioned stream and/or the operation of valve of control pump 50, to meet preset range.Those skilled in the art will recognize that, controller 11 or similar control device can be positioned to away from temperature controller, water level controller or flow controller (Fig. 1 is not shown), or can be positioned on temperature controller, water level controller or flow controller place and comprise them.
Fig. 2 is the bottom view of the sprinkling rod 54 in the quenching container 10 of obtaining along the 2-2 line of Fig. 1.Fig. 3 is the bottom view of the sprinkling rod 56 in the quenching container 10 of obtaining along the 3-3 line of Fig. 1.Spray rod 58 and can there is the structure similar to spraying rod 54.Spray rod 60 and can there is the structure similar to spraying rod 56.Each sprays rod can comprise a succession of spray arm, and spray arm is approximately perpendicular to their corresponding sprinkling rods and extends.As used in this article, " substantially vertical " mean from vertical approximately ± angle of 15 °, in one aspect of the method, approximately ± 10 °, and in one aspect of the method, approximately ± 5 °.Below discuss the left lower quadrant that focuses on the sprinkling rod 54 shown in Fig. 2.Those skilled in the art will recognize that, the integral body that spreads all over sprinkling rod 54 can provide similar structure, for example mirror-image structure.As shown in Figure 2, spray rod 54 and comprise a succession of spray arm 64,66,68,70,72,74 and 76.Spray arm 70 is roughly crossed over the diameter 78 of quenching container 10 and is extended.Diameter 78 is perpendicular to diameter 62.Spray arm 64,66,68,72,74 and 76 is roughly crossed over the corresponding string (chord) of quenching container 10 and is extended, and wherein, each string is roughly parallel to diameter 78.As shown in Figure 2, spray arm 72 is roughly crossed over corresponding string 80 and is extended, and spray arm 74 is roughly crossed over corresponding string 82 and extended, and spray arm 76 is roughly crossed over corresponding string 84 and extends.
Each each spray arm that sprays rod can have two or more extensions.As shown in Figure 2, spray arm 76 has extension 86,88 and 90.Spray arm 74 has extension 92,94,96,98,100 and 102.Spray arm 72 has extension 104, and spray arm 70 has extension 106.Each extension is approximately perpendicular to its corresponding spray arm and extends.Each extension comprises spray nozzle, and spray nozzle is in its corresponding extension end, and wherein, each spray nozzle is towards below.In one aspect, each nozzle structure becomes to spray the hollow cone spraying of quenching liquid downwards, and wherein, each hollow cone spraying limits from the hollow cone spraying equidistant center of wall.As shown in Figure 2, extension 86 has nozzle 108, and extension 88 has nozzle 110, and extension 90 has nozzle 112.As shown in Figure 2, extension 92 has nozzle 114, and extension 94 has nozzle 116, and extension 96 has nozzle 118, and extension 98 has nozzle 120, and extension 100 has nozzle 122, and extension 102 has nozzle 124.
In one aspect, first sprays excellent nozzle can be spaced apart, so that overlapping with a part for the second hollow cone spraying of the quenching liquid of second nozzle from the first sprinkling rod from a part for the first hollow cone spraying of the quenching liquid of the first nozzle of the first sprinkling rod, so that the first overlapping of quenching liquid to be provided, first overlappingly has the first overlapping center.For example, as shown in Figure 2, a part for the hollow cone spraying 128 of a part for the hollow cone of nozzle 108 spraying 126 and nozzle 114 is overlapping, to provide, has first overlapping 130 of overlapping center 132.As shown in Figure 2, between the hollow cone spraying of adjacent nozzle of spraying rod 54, there is no overlapping restriction gap, place 134.The extension 104 of spray arm 72 comprises nozzle 136.Nozzle 136 is configured to produce hollow cone spraying 138.The extension 106 of spray arm 70 comprises nozzle 140.Nozzle 140 is configured to produce hollow cone spraying 142.
In one aspect, first each hollow cone spraying of spraying rod can have and at least one other hollow cone of the first sprinkling rod identical diameter of spraying.Second each hollow cone spraying of spraying rod can have and at least one other hollow cone of the second sprinkling rod identical diameter of spraying.First each hollow cone spraying of spraying rod can have and at least one hollow cone of the second sprinkling rod identical diameter of spraying.
In one embodiment, along the axis being limited by spray arm 70, spray arm 68 is mirror images of spray arm 72, and spray arm 66 is mirror images of spray arm 74, and spray arm 64 is mirror images of spray arm 76.Those skilled in the art will recognize that, according to the disclosure, in upper quadrant, can provide similar structure, that is, upper quadrant is the mirror image of the lower quadrant shown in Fig. 2, has the mirror image in extension, nozzle, hollow cone spraying, overlapping, overlapping center and gap.
In one aspect, the nozzle quantity on spray arm 76 can be approximately 6 (that is two quadrants that, extend through at spray arm 76 in each in have three nozzles).In one aspect, the nozzle quantity on spray arm 74 can be approximately 10 to 14 (in each in two quadrants that extend through at spray arm 74, having 5 to 7).In one aspect, the nozzle quantity on spray arm 72 can be approximately 30 to 36 (that is in each in two quadrants that, extend through at spray arm 74, having 15 to 18 nozzles).In one aspect, the nozzle quantity on spray arm 70 can be approximately 38 to 40 (that is in each of two semicircles that, extend through at spray arm 70, having 19 to 20 nozzles).
Fig. 3 is the bottom view of the sprinkling rod 56 shown in Fig. 1.Spray rod 60 and can there is the structure similar to spraying rod 56.Below discuss the left lower quadrant that focuses on the sprinkling rod 56 shown in Fig. 3.Those skilled in the art will recognize that, spread all over the integral body of spraying rod 56, can provide similar structure, for example mirror-image structure.As shown in Figure 3, spray rod 56 and comprise a succession of spray arm 300,302,304,306,308 and 310.Spray arm 300,302,304,306,308 and 310 is roughly crossed over the corresponding string of quenching container 10 and is extended, and wherein, each string is roughly parallel to diameter 78.As shown in Figure 3, spray arm 306 is roughly crossed over corresponding string 312 and is extended, and spray arm 308 is roughly crossed over corresponding string 314 and extended, and spray arm 310 is roughly crossed over corresponding string 316 and extends.
As mentioned before, each each spray arm that sprays rod can have two or more extensions.As shown in Figure 3, spray arm 310 has extension 318,320 and 322.Spray arm 308 has extension 328, and spray arm 306 has extension 326.Each extension is approximately perpendicular to its corresponding spray arm and extends.Each extension comprises spray nozzle, and spray nozzle is in its corresponding extension end, and wherein, each spray nozzle is towards below.In one aspect, each nozzle structure becomes to spray the hollow cone spraying of quenching liquid downwards, and wherein, each hollow cone spraying limits from the hollow cone spraying equidistant center of wall.As shown in Figure 3, extension 318 has nozzle 330, and extension 320 has nozzle 332, and extension 322 has nozzle 334.As shown in Figure 3, extension 328 has nozzle 338, and extension 326 has nozzle 336.Nozzle 330 is configured to produce the hollow cone spraying 340 of quenching liquid.Hollow cone spraying 340 is overlapping with the gap 134 shown in Fig. 2.In one embodiment, the central straight of hollow cone spraying 340 is connected on 132 tops, overlapping center.
Spray arm 310 is positioned on string 316.String 316 is directly positioned at string 324 tops shown in Fig. 2.String 324 is between spray arm 76 and 74.In one embodiment, string 324 is equidistant between spray arm 76 and 74.String 308 is directly positioned at string 342 tops shown in Fig. 2.String 342 is between spray arm 74 and 72.In one embodiment, string 342 is equidistant between spray arm 74 and 72.String 306 is directly positioned at string 344 tops shown in Fig. 2.String 344 is between spray arm 72 and 70.In one embodiment, string 344 is equidistant between spray arm 74 and 72.In one embodiment, spray arm 300 is mirror images of spray arm 310, and spray arm 302 is mirror images of spray arm 308, and spray arm 304 is mirror images of spray arm 306.
In one aspect, being centrally located in above the corresponding overlapping center of spraying rod 54 of the hollow cone spraying of the nozzle of sprinkling rod 56, aim at vertically with it, wherein, the surface area of the par cross section covering separately with quenching liquid spraying by from spraying rod 54 is compared, from spraying the quenching liquid spraying of rod 56 and covering more in the surface area of the level cross-sectionn of spraying rod 54 quenching container 10 below from the quenching liquid spraying of spraying rod 54.Similarly, in one aspect, being centrally located in above the corresponding overlapping center of spraying rod 58 of the hollow cone spraying of the nozzle of sprinkling rod 60, wherein, the surface area of the par cross section covering separately with quenching liquid spraying by from spraying rod 58 is compared, from spraying the quenching liquid spraying of rod 60 and covering more in the surface area of the level cross-sectionn of spraying rod 58 quenching container 10 below from the quenching liquid spraying of spraying rod 58.
In one aspect, the nozzle that sprays rod 54 can be spaced apart, so that overlapping from a part for each hollow cone spraying for quenching liquid and the part for another hollow cone spraying of quenching liquid from least one adjacent nozzle of each nozzle of spraying rod 54, so that a plurality of first overlapping of quenching liquid to be provided, wherein, each first overlappingly has the first overlapping center.From a plurality of first overlapping and non-overlapped parts of each hollow cone spraying of quenching liquid of spraying the nozzle of rod 54, jointly form from first projection of spraying the quenching liquid of rod 54 and spray.
In one aspect, the nozzle that sprays rod 56 can be spaced apart, so that overlapping from a part for each hollow cone spraying for quenching liquid and the part for another hollow cone spraying of quenching liquid from least one adjacent nozzle of each nozzle of spraying rod 56, so that a plurality of second overlapping of quenching liquid to be provided, wherein, each second overlappingly has the second overlapping center.A plurality of second overlapping and non-overlapped parts of spraying from each hollow cone that sprays the nozzle of rod 56 jointly form from the second projection spraying of spraying rod 56.
In one aspect, the nozzle that sprays rod 56 can be spaced apart, to spray the center of at least one hollow cone spraying of rod 56, from spraying the center of the hollow cone spraying of rod 54, is offset vertically.In one embodiment, spray the center of at least one hollow cone spraying of rod 56 placed in the middle above at least one first overlapping center of spraying rod 54.The first projection spraying and the second projection spraying provide downward spraying wall capable of being combinedly, and this spraying wall is compared more in the surface area that covers the level cross-sectionn of spraying the quenching container 10 below excellent 54 with the surface area in the identical transverse cross cross section being covered separately by the first projection spraying.In one aspect, the second projection spraying is filled from a plurality of gaps 134 between the hollow cone spraying of the quenching liquid of sprinkling rod 54.
In one embodiment, in quenching container 10, can there are 4 to 10 and spray rod.Thereby, can exist 2 to 5 pairs first and second to spray rod.
Those skilled in the art will recognize that, according to the disclosure, said apparatus can be used in the method for quenching and neutralization reactor eluting gas, and this reactor eluting gas comprises acidity or basic gas componant.The method can comprise reactor eluting gas is incorporated in the base section of device, and by the guiding of quenching liquid through more than first and second nozzles, quenching liquid is with reflux type contact reactor eluting gas, to neutralize and quenching reactor eluting gas thus.
Fig. 4 illustrates according to the flow chart of the method 400 of aspect of the present disclosure.Method 400 can utilize aforementioned means to carry out.Step 401 is included in and in the first of quenching container, receives the air-flow that comprises acrylonitrile and ammonia.Step 402 is included in multistage sprinkling system and receives and comprise sour quenching liquid, and this multistage sprinkling system is positioned in the second portion of quenching container, and this second portion is positioned at first top.This multistage sprinkling system can at least comprise that the first sprinkling rod and second sprays rod, wherein, the first sprinkling rod and second sprays rod roughly to be crossed over the diameter of quenching container and extends, wherein, first sprays rod is positioned at below the second sprinkling rod, and is roughly parallel to the second sprinkling rod.The method can comprise from the first and second sprinkling rods sprays quenching liquid.Each sprays rod can comprise a plurality of spray arms, and the plurality of spray arm is approximately perpendicular to their corresponding sprinkling rods and extends, and wherein, first at least one spray arm and second that sprays rod sprays at least one excellent spray arm and has two or more extensions.Each extension can be approximately perpendicular to its corresponding spray arm and extend, and each extension comprises spray nozzle, and spray nozzle is positioned at the far-end of corresponding extension, and wherein, each spray nozzle is towards below.Spray and also can comprise from each spray nozzle and spray quenching liquid downwards, using and spray as the hollow cone of quenching liquid, wherein, each hollow cone spraying restriction center.
Step 403 is included in the first projection spraying sprays quenching liquid.Step 403 can comprise the nozzles spray quenching liquid from the first sprinkling rod, so that it is overlapping that at least one hollow cone spraying of excellent adjacent nozzle is sprayed in the first hollow cone spraying and first of spraying each nozzle of rod, wherein, first sprays excellent nozzle structure becomes to provide a plurality of first overlapping of spraying, wherein, hollow cone spraying and a plurality of first overlaps to form the first projection spraying of quenching liquid, and the first projection spraying of quenching liquid limits that hollow cone is sprayed and the first gap between overlapping.
Step 404 is included in the second projection spraying sprays quenching liquid.Step 404 can comprise the nozzles spray quenching liquid from the second sprinkling rod, so that the first projection spraying and the second projection spraying provide downward projection spraying wall in combination, this projection spraying wall is compared the more high surface area in the transverse cross cross section that covers the quenching container parallel with quenching container diameter with the surface area being covered separately by the first projection spraying.
Although described the disclosure in conjunction with its some preferred embodiment in aforementioned specification, and for illustration object, many details have been stated, but what it will be appreciated by one of skill in the art that is, the embodiment that disclosure tolerable is extra, and some in details as herein described can be in the situation that not departing from basic principle of the present utility model changes significantly.Should understand, in the situation that do not depart from the scope of spirit and scope of the present disclosure or claim, feature of the present disclosure is allowed modification, change, changes or is substituted.For example, the size of various members, quantity, size and shape can change to mate specific application.Therefore, in this article shown in and described specific embodiment only for illustration object.
Claims (33)
1. a quenching container, comprises;
Entrance, it is configured to receive gaseous flow, and described gaseous flow comprises acrylonitrile and ammonia; With
Multistage sprinkling system, it is configured to receive quenching liquid, described entrance be positioned at described multistage sprinkling system below,
Wherein, described multistage sprinkling system at least comprises the first and second sprinkling rods, described first and second spray rod roughly crosses over the diameter of described quenching container and extends, each sprays rod and comprises a plurality of nozzles, described a plurality of nozzle structure becomes to provide the spraying of quenching liquid, spray nozzle is effectively for providing polymerization spraying, and described polymerization spraying has the spray pattern of the surface area of the cross section that covers described quenching container.
2. quenching container according to claim 1, is characterized in that, described multistage sprinkling system cross over described quenching container diameter about 85% or more and extend.
3. quenching container according to claim 1, is characterized in that, described first spray rod be positioned at described second spray rod below, and be roughly parallel to described second and spray rod.
4. quenching container according to claim 1, is characterized in that, the spraying of described quenching liquid is the adverse current with respect to described gaseous flow.
5. quenching container according to claim 1, is characterized in that, the excellent quantity of described sprinkling is between 4 and 10.
6. quenching container according to claim 1, is characterized in that, the described first and second distances of spraying between rod are configured to the expectation quenching that realization response device flows out product.
7. quenching container according to claim 6, is characterized in that, the distance of spraying between rod is about 0.65 meter to about 1.4 meters.
8. quenching container according to claim 1, is characterized in that, described quenching liquid comprises water.
9. quenching container according to claim 1, is characterized in that, described quenching liquid is waterborne liquid, and comprises acid.
10. quenching container according to claim 9, is characterized in that, described acid is sulfuric acid.
11. quenching containers according to claim 1, is characterized in that, are configured to quenching liquid carrying for the cycling rate that is enough to remove from reactor eluting gas excess ammonia.
12. quenching containers according to claim 11, is characterized in that, based on recirculation sulfuric acid: the ratio of fresh sulfuric acid, for the cycling rate of described quenching liquid in the scope of 12:1 to 25:1.
13. quenching containers according to claim 12, is characterized in that, based on recirculation sulfuric acid: the ratio of fresh sulfuric acid, is approximately 18:1 for the cycling rate of described quenching liquid.
14. quenching containers according to claim 1, is characterized in that, also comprise the independent isolating valve, and the flowmeter that for each, spray rod, and described valve and flowmeter are configured to allow respectively adjustment and the check through the flow of corresponding sprinkling rod.
15. quenching containers according to claim 1, is characterized in that, are configured to remain on and calculate by weight from about level of 3% to 20% leaving ammonium sulfate concentrations in the effluent stream of bottom of described quenching container.
16. quenching containers according to claim 12, it is characterized in that, comprise the interpolation of clean current or the recirculation of clean current, to remain on the suitable ammonium sulfate level of calculating by weight in about expected range of 3% to 20% in the effluent stream leaving described quenching container.
17. quenching containers according to claim 1, it is characterized in that, also comprise stripper, the vapor stream that described stripper is configured to distillate by tower top removes desired organic matter from the stream of described quenching liquid, the vapor stream that described tower top distillates is circulated back to described quenching container, and turns back in the vapor stream of spraying in described container reactor effluent below.
18. quenching containers according to claim 1, it is characterized in that, each sprays rod and comprises a plurality of spray arms, the plurality of spray arm is approximately perpendicular to their corresponding sprinkling rods and extends, wherein, described first at least one spray arm and described second at least one spray arm that sprays rod that sprays rod has two or more extensions.
19. quenching containers according to claim 18, is characterized in that, each extension is approximately perpendicular to its corresponding spray arm and extends, and each extension comprises spray nozzle, and described spray nozzle is positioned at the far-end of its corresponding extension.
20. quenching containers according to claim 19, is characterized in that, each spray nozzle is configured to provide the hollow cone spraying of described quenching liquid, and wherein, each hollow cone spraying defines center.
21. quenching containers according to claim 20, it is characterized in that, the spraying of described hollow cone spreads all over described container and is evenly spaced apart on horizontal plane, make from the spray pattern of the sprinkling outlet projection of 70 to 100 degree of described circular cone have approximate 50% overlapping.
22. quenching containers according to claim 20, it is characterized in that, described first to spray excellent nozzle spaced apart, so that it is overlapping that at least one hollow cone spraying of excellent adjacent nozzle is sprayed in the described first hollow cone spraying and described first of spraying each nozzle of rod, wherein, described first sprays excellent nozzle structure becomes to provide a plurality of first overlapping of spraying, wherein, described hollow cone spraying and a plurality of first overlaps to form the first projection spraying of spraying liquid, the first projection spraying of described spraying liquid defines the gap of described hollow cone spraying and first between overlapping.
23. quenching containers according to claim 22, is characterized in that, also skew with it above the center of spraying at described first each hollow cone that sprays rod in each center of the hollow cone spraying that described the second sprinkling is excellent.
24. quenching containers according to claim 23, it is characterized in that, described first sprays that each of excellent hollow cone spraying is overlapping has the first overlapping center, wherein, described second each central straight of spraying excellent hollow cone spraying is connected on the top at the first corresponding overlapping center of the excellent hollow cone spraying of described the first sprinkling.
25. quenching containers according to claim 22, is characterized in that, described first each hollow cone spraying of spraying rod has and described first at least one other hollow cone that sprays rod identical diameter of spraying.
26. quenching containers according to claim 22, is characterized in that, described second each hollow cone spraying of spraying rod has and described second at least one other hollow cone that sprays rod identical diameter of spraying.
27. quenching containers according to claim 22, is characterized in that, described first each hollow cone spraying of spraying rod has and described second at least one hollow cone that sprays rod identical diameter of spraying.
28. quenching containers according to claim 27, it is characterized in that, exist at least the first pair first and second to spray rod and at least the second pair the 3rd and spray rod and the 4th and spray rod, wherein, the described the 3rd sprays rod has the structure identical with described the first sprinkling rod, described the 4th sprinkling is excellent has the structure identical with described the second sprinkling rod, and described the 3rd sprinkling is excellent below described the 4th sprinkling is excellent, and second pair is sprayed excellent on first pair of sprinkling is excellent.
29. quenching containers according to claim 20, is characterized in that, each nozzle does not have internal motion parts.
30. quenching containers according to claim 21, is characterized in that, each hollow cone spray structure becomes with the angle of about 70 to 100 degree, to spray described quenching liquid from corresponding nozzle.
31. quenching containers according to claim 5, is characterized in that, comprise and spray rod layer, and the excellent interlayer of described sprinkling separates, so as each layer circular cone below be centrally located in the overlapping center from layer above.
32. quenching containers according to claim 31, it is characterized in that, set up double-deck pattern, described double-deck pattern is configured to provide the spraying of quenching liquid, this quenching liquid spraying is enough to provide polymerization spraying, and described polymerization spraying has the coverage at the center from described quenching wall of a container to described container.
33. quenching containers according to claim 32, is characterized in that, described double-deck pattern is the first double-deck pattern, and repeat in the second double-deck pattern on described the first double-deck pattern.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420150639.3U CN203777923U (en) | 2014-03-31 | 2014-03-31 | Improved ammonia removal process for reactor effluents |
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| CN201420150639.3U CN203777923U (en) | 2014-03-31 | 2014-03-31 | Improved ammonia removal process for reactor effluents |
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| CN203777923U true CN203777923U (en) | 2014-08-20 |
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| CN104587818A (en) * | 2014-09-30 | 2015-05-06 | 英尼奥斯欧洲股份公司 | Operation of quench tower and treatment of substrate |
| CN104941419A (en) * | 2014-03-31 | 2015-09-30 | 英尼奥斯欧洲股份公司 | Modified ammonia removal system of reactor effluent |
| CN105983322A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Spraying equipment for neutralization reaction |
| CN105983318A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Acid addition level regulating device for neutralization reaction tower |
| CN105983319A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Multilayer spraying device |
| CN105983316A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Spraying equipment and method for neutralization reaction |
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| CN105983313A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Apparatus and method for removing ammonia in ammoxidation gas |
| CN105983321A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Ammonia neutralization device and method |
| CN105983315A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Multilevel spraying device and neutralization method |
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| CN104941419A (en) * | 2014-03-31 | 2015-09-30 | 英尼奥斯欧洲股份公司 | Modified ammonia removal system of reactor effluent |
| TWI694857B (en) * | 2014-09-29 | 2020-06-01 | 瑞士商億諾斯歐洲公司 | Process for operation of quench column |
| CN104587818A (en) * | 2014-09-30 | 2015-05-06 | 英尼奥斯欧洲股份公司 | Operation of quench tower and treatment of substrate |
| TWI698273B (en) * | 2014-09-30 | 2020-07-11 | 瑞士商億諾斯歐洲公司 | Quench column operation and bottom processing |
| CN105983321A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Ammonia neutralization device and method |
| CN105983314A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Automatic control device and method for amount of acid added into neutralization tower |
| CN105983323A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Spraying device and neutralization method |
| CN105983313A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Apparatus and method for removing ammonia in ammoxidation gas |
| CN105983319A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Multilayer spraying device |
| CN105983315A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Multilevel spraying device and neutralization method |
| CN105983320A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Water replenishing device of quench tower |
| CN105983316A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Spraying equipment and method for neutralization reaction |
| CN105983317A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Ammonia neutralization device |
| CN105983321B (en) * | 2015-01-31 | 2018-04-06 | 中国石油化工股份有限公司 | In ammonia and device and neutralization method |
| CN105983322B (en) * | 2015-01-31 | 2018-04-06 | 中国石油化工股份有限公司 | The sprinkling equipment of neutralization reaction |
| CN105983319B (en) * | 2015-01-31 | 2018-04-06 | 中国石油化工股份有限公司 | Multi-layer sprinkling device |
| CN105983318A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Acid addition level regulating device for neutralization reaction tower |
| CN105983322A (en) * | 2015-01-31 | 2016-10-05 | 中国石油化工股份有限公司 | Spraying equipment for neutralization reaction |
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