CN105983317A - Ammonia neutralization device - Google Patents
Ammonia neutralization device Download PDFInfo
- Publication number
- CN105983317A CN105983317A CN201510052346.0A CN201510052346A CN105983317A CN 105983317 A CN105983317 A CN 105983317A CN 201510052346 A CN201510052346 A CN 201510052346A CN 105983317 A CN105983317 A CN 105983317A
- Authority
- CN
- China
- Prior art keywords
- ammonia
- neutralizer
- spraying layer
- reacting gas
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to an ammonia neutralization device. The ammonia neutralization device is mainly used for solving the problems in the prior art that the rate of removal of ammonia from reactant gases in an ammonia oxidation reaction is low, the ammonia enters a subsequent system, the polymer loss of organic matters is increased, the clogging to towers and pipelines is caused, and the operation cycle of equipment is shortened. According to the ammonia neutralization device, by adopting the technical scheme that the ammonia neutralization device comprises a shell, a reactant gas inlet, a reactant gas outlet, a reactant gas neutralizing solution inlet and a reactant gas neutralizing solution outlet, a tower plate or filler which is located below the reactant gas neutralizing solution inlet and above the reactant gas inlet is arranged in the ammonia neutralization device, multiple spraying layers which are formed by sprayers in a manner of being distributed in a geometric shape are arranged at the reactant gas neutralizing solution inlet, a reactant gas neutralizing solution is in counter-flow contact with the reactant gases, and a demister is arranged above the reactant gas neutralizing solution inlet, the problems are better solved, and thus the ammonia neutralization device can be applied to an industrial unit for the ammonia oxidation reaction.
Description
Technical field
The present invention relates in a kind of ammonia and device.
Background technology
In ammoxidation reaction device, containing unreacted ammonia in the reacting gas of fluidized-bed reactor outlet, it is necessary to as early as possible
Being removed, and remove thorough, otherwise ammonia entrance follow-up system will cause system pH value to increase, and cause loss of product to increase
Add, affect the response rate of product, also result in the polymer plugging of tower, heat exchanger, pipeline etc. simultaneously, just affecting device
Often run.Using Multi-layer sprinkling layer to carry out the neutralization of ammonia at present, gas-to-liquid contact is insufficient, and the removal efficiency of ammonia is the highest, therefore,
Neutralize the cycle of operation for extension fixture of the unreacted ammonia in reacting gas quickly, up hill and dale, reduce the consumption of device, tool
There are highly important realistic meaning and economic benefit.
Document US3885928 describes recovery and the refining system of a kind of alkene nitrile, and wherein on the one hand the purpose of emergency cooling process is
Reactor effluent is cooled to uniform temperature, be on the other hand in reactor effluent unreacted ammonia and reaction generate poly-
Compound and heavy impurity.Technical scheme employed in the document is to use water and sulphuric acid as chilling liquid, aqueous, sour, polymerization
The bottoms of thing and other impurity is discharged from chilling system.Liquid containing ammonium sulfate, heavy impurity, a small amount of lightweight in these bottoms
Organic substance and water.Owing to ammonia conversion ratio is uncontrolled, make in reacting gas containing unreacted ammonia, unreacted ammonia and propylene
Nitrile reacts, and reduces the refined recovery rate of acrylonitrile.Unreacted ammonia must be removed quickly, up hill and dale.
Summary of the invention
One of the technical problem to be solved is to present in prior art in ammonia and in device in reacting gas
The clearance of ammonia is low, and ammonia enters follow-up system, increases organic polymer loss, causes tower, pipeline to block, and shortens
The problem in plant running cycle, it is provided that in a kind of new ammonia and device.This device has uniform gas-liquid distribution, and gas-to-liquid contact fills
Point, the neutralization efficiency of ammonia is high, is effectively lowered into the ammonia of follow-up system, maintains the relatively low consumption level of device, extension fixture
The advantage of cycle of operation.
The two of the technical problem to be solved are to ammonia neutralization method in ammoxidation reaction present in prior art not
Rationally, the removal efficiency of ammonia is the highest, and ammonia enters follow-up tower, heat exchanger and pipeline system, causes follow-up equipment, pipeline stifled
Plug, device consumption increases, the problem that cycle of operation shortens, it is provided that a kind of new ammonia neutralization method.The method has in ammonia
High with efficiency, effectively it is lowered into the ammonia of follow-up system, maintains the relatively low consumption level of device, the cycle of operation of extension fixture
Advantage.
For solving one of above-mentioned technical problem, the technical solution used in the present invention is as follows: in a kind of ammonia and device, and ammonia neutralizes
Device includes that housing, reaction gas inlet and reaction gas outlet, reacting gas neutralizer entrance and reacting gas neutralizer go out
Mouthful, reaction gas inlet is arranged in ammonia and device bottom, and reaction gas outlet is arranged in ammonia and device top, reaction gas
Body neutralizer entrance is arranged on above reaction gas inlet, neutralizer outlet be arranged in ammonia and bottom of device, in ammonia and dress
Put below reaction gases neutralizer entrance, reaction gas inlet is provided above column plate or filler, reacting gas neutralizer entrance
The Multi-layer sprinkling layer being made up of by geometry arrangement shower nozzle, reacting gas neutralizer and reacting gas counter current contacting are set,
Reacting gas neutralizer entrance top arranges demister；The spraying layer that 1-2 layer upwards sprays is set below demister.
In technique scheme, preferred technical scheme is, below described reacting gas neutralizer entrance, reacting gas enters
Column plate or the preferred scope of the number of theoretical plate of filler that mouth is provided above are 1～10 piece, and more preferably scope is 2～6 pieces, optimum
Selecting scope is 1～2 piece；Described column plate includes at least one in float valve, sieve aperture, bubble-cap, guiding sieve aperture, rotation column plate；
Described filler includes at least one in grid, regular corrugation filler, Raschig ring, Pall ring, cascade ring, intalox saddle.
In technique scheme, preferred technical scheme is, the preferred scope of described spraying layer is 1～8 layer, more preferably model
Enclosing is 2～4 layers, and most preferred range is 1～2 layer；The preferred scope of the arrangement density of every layer of spraying layer shower nozzle is 1～4 spray
Head/m2, more preferably scope is 1～2 shower nozzle/m2；The geometry of every layer of water-spraying fabric includes square, rectangle, just
At least one in triangle, concentric circular annular；Described shower nozzle includes hollow cone, solid-cone, screw type, air atomizing
At least one in shower nozzle.
In technique scheme, preferred technical scheme is, the distance between Multi-layer sprinkling layer from top to bottom for being stepped up,
Distance between a upper spraying layer is that 1-1.5 times of the distance between next spraying layer, preferably scope are 1.05-1.4 times, more
Preferably scope is 1.1-1.2 times；Go up a spraying layer by weight 0.5-1 times that spray flux is next spraying layer spray flux, excellent
Selecting scope to be 0.7-0.99 times, more preferably scope is 0.8-0.9 times.
In technique scheme, preferred technical scheme is, the distance 0.7-1.3 rice between Multi-layer sprinkling layer, every layer of spray
Layer arranges supervisor, arm, short tube, the wherein 0.2-0.5 of a diameter of predominant tube diameter of arm；Short tube a diameter of arm diameter
0.3-0.5, arranges the spraying layer that 1-2 layer upwards sprays below demister.
In technique scheme, preferred technical scheme is, arranges demister at reacting gas neutralizer entrance top, removes
Foam device includes at least one in board-like demister, wire mesh demister, bubble cap tray, sieve plate, filler；Demister be bubble cap tray,
The preferred scope of the number of theoretical plate of sieve plate is 1～5 piece, and more preferably scope is 1～2 piece；Demister is the number of theoretical plate of filler
Preferred scope be 1～5 piece, more preferably scope is 1～2 piece.
In technique scheme, preferred technical scheme is, arranges gas distributor at reaction gas inlet, and gas is distributed
Type formula includes the one in semicircle cast, pipe distributor, dendroid porous type, biserial vane type.
For solving the two of above-mentioned technical problem, the technical solution used in the present invention is as follows: use any one ammonia described above
Neutralize in device, a) by the reacting gas neutralizer that weight ratio is 0.3～20 that temperature is 50～200 DEG C and reacting gas from
Sprayed, with reacting gas counter current contacting by the geometry neutralizer spraying layer that forms of arrangement by shower nozzle；B) after neutralizing
Reacting gas enters above spraying layer with the speed of 0.2～5m/s, enters subsequent absorption system after demister.
In technique scheme, preferred technical scheme is, the reacting gas neutralizer temperature contacted with reacting gas preferred
Scope is 50～150 DEG C, and more preferably scope is 70～120 DEG C；Reacting gas neutralizer and the preferred model of reacting gas weight ratio
Enclosing is 1～5, and more preferably scope is 1.5～3；The preferred scope entering the reacting gas speed above liquid distribution trough is
1～2m/s；Neutralizer part recycles the neutralizer as reacting gas.
In technique scheme, preferred technical scheme is, the spray flux going up a spraying layer by weight is the spray of next spraying layer
0.5-1 times of pouring amount, preferably scope are 0.7-0.99 times, and more preferably scope is 0.8-0.9 times.
In technique scheme, preferred technical scheme is, adds acid in described neutralizer, and acid is sulphuric acid, acetic acid, grass
At least one in acid, phosphoric acid, acrylic acid, formic acid, carbonic acid, preferably scope are in sulphuric acid, acetic acid, oxalic acid, phosphoric acid
At least one；At least one during more preferably scope is sulphuric acid, phosphoric acid；Neutralizer pH controlling value is 3-6.5, preferably model
Enclosing for 3-5, more preferably scope is 3.5-4.5.
Due in ammonia in the reacting gas of the present invention and device, in ammonia and device by housing, reaction gas inlet and outlet,
Reacting gas neutralizer entrance and exit forms, and reaction gas inlet is arranged in ammonia and device bottom, and reaction gas outlet sets
Putting in ammonia and device top, reacting gas neutralizer entrance is provided in above reaction gas inlet, and neutralizer outlet is arranged
In ammonia and bottom of device, in ammonia and below device reaction gases neutralizer entrance, reaction gas inlet be provided above tower
Plate or filler, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, reacting gas by geometry arrangement
Neutralizer and reacting gas counter current contacting, arrange demister at reacting gas neutralizer entrance top.Use uniform temperature and
Reacting gas be the reacting gas neutralizer of certain weight ratio after liquid distribution trough with reacting gas counter current contacting, and with properly
Speed above liquid distribution trough, gas-to-liquid contact washing fully, has effectively neutralized the ammonia carried secretly in reacting gas, has subtracted
Lack organic polymerization losses, maintained the consumption level that device is relatively low, extended the cycle of operation of device, decrease and stop
The frequency that car cleans.And using in the ammonia of the present invention and device and method, gas-to-liquid contact is uniform, improves quenching effect.
The present invention is applicable not only to the neutralization of ammonia in ammoxidation reaction device, is equally applicable to fluidized-bed reactor outlet reaction gas
The catalyst fines carried secretly in body and the washing trapping of heavy constituent, and it is applicable to the cold of fluidized-bed reactor outlet reacting gas
But.
Use the present invention ammonia in and device, below reacting gas neutralizer entrance, reaction gas inlet be provided above 2 pieces of reasons
The grid packing of opinion plate, centers 4 layers of reacting gas neutralization being made up of hollow cone shower nozzle by square arrangement neutralizing dress
Liquid spraying layer, the arrangement density of shower nozzle is 2 shower nozzle/m2, reaction gas inlet arranges dendroid porous type gas distributor,
Spraying layer is provided above the bubble cap tray of 2 pieces of theoretical plates as demister, and the clearance of the ammonia in neutralized rear reacting gas reaches
99.9%, in ammonia and device and follow-up system are without blocking, heat exchanger heat transfer effect, SR are constant, organic polymerization
Loss reduces, and the plant running cycle reaches 18 months, extends the cycle of operation of device, achieves preferable technique effect.
Accompanying drawing explanation
Fig. 1 be the present invention ammonia in and device schematic diagram；
In Fig. 1,1 is in ammonia and device, and 2 is gas distributor, and 3 is reaction gas inlet, and 4 is column plate or filler, and 5 are
Neutralizer spraying layer, 6 is demister, and 7 is reaction gas outlet, and 8 is reacting gas neutralizer entrance, and 9 go out for neutralizer
Mouthful.
In the ammonia of the present invention and device technique process is as follows: fluidized-bed reaction product enters ammonia from reaction gas inlet 3 and dress
Put 1 bottom, with the reacting gas neutralizer 8 from neutralizer spraying layer 5 ejection at column plate or filler after gas distributor 2
Carrying out counter current contacting neutralization in layer 4, the reacting gas after neutralization goes to absorption tower from reaction gas outlet 7 after entering demister 6,
Neutralizer 9 after neutralization removes wastewater treatment equipment.
Below by specific embodiment, the invention will be further elaborated.
Detailed description of the invention
[comparative example 1]
Chilling tower reacting gas neutralizer sprays from Multi-layer sprinkling layer and reacts with reacting gas counter current contacting, and chilling tower exports
In gas phase, the neutralization of ammonia is incomplete, and the clearance of ammonia reaches 95%, and unneutralized ammonia enters in follow-up system, organic
Polymerization losses increases, and causes follow-up tower, heat exchanger, pipeline to block, and affects the properly functioning of device, shortens cycle of operation.
[embodiment 1]
In a kind of ammonia and device, below reacting gas neutralizer entrance, reaction gas inlet be provided above the lattice of 2 pieces of theoretical plates
Grid filler, centers 4 layers of reacting gas neutralizer spraying layer being made up of hollow cone shower nozzle by square arrangement neutralizing dress,
The arrangement density of shower nozzle is 2 shower nozzle/m2, reaction gas inlet arranges dendroid porous type gas distributor, on spraying layer
Side arranges the bubble cap tray of 2 pieces of theoretical plates as demister, and the clearance of the ammonia in neutralized rear reacting gas reaches 99.9%,
In ammonia and device and follow-up system are without blocking, heat exchanger heat transfer effect, SR are constant, and organic polymerization losses reduces,
The plant running cycle reaches 18 months, extends the cycle of operation of device, achieves preferable technique effect.
[embodiment 2]
In a kind of ammonia and device, in ammonia and device includes housing, reaction gas inlet and reaction gas outlet, reacting gas
Neutralizer entrance and the outlet of reacting gas neutralizer, reaction gas inlet is arranged in ammonia and device bottom, reaction gas outlet
Being arranged in ammonia and device top, reacting gas neutralizer entrance is arranged on above reaction gas inlet, and neutralizer outlet is arranged
In ammonia and bottom of device, in ammonia and below device reaction gases neutralizer entrance, reaction gas inlet be provided above tower
Plate or filler, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, reacting gas by geometry arrangement
Neutralizer and reacting gas counter current contacting, arrange demister at reacting gas neutralizer entrance top；2 are arranged below demister
The spraying layer that layer upwards sprays.
Below reacting gas neutralizer entrance, the number of theoretical plate of column plate that reaction gas inlet is provided above or filler be 10 pieces；
Described column plate includes float valve and sieve aperture；Described filler includes grid and regular corrugation filler.
The spraying layer that reacting gas neutralizer entrance is arranged is 8 layers；The arrangement density of every layer of shower nozzle is 4 shower nozzle/m2；Often
The geometry of layer water-spraying fabric includes square and rectangle.
[embodiment 3]
Neutralize device and include housing, reaction gas inlet and reaction gas outlet, reacting gas neutralizer entrance and reacting gas
Neutralizer exports, and reaction gas inlet is arranged in ammonia and device bottom, and reaction gas outlet is arranged in ammonia and device top,
Reacting gas neutralizer entrance is arranged on above reaction gas inlet, and neutralizer outlet is arranged in ammonia and bottom of device, wherein
In ammonia and device reaction gases neutralizer entrance below, reaction gas inlet be provided above column plate or filler, neutralizer enters
Mouth arranges liquid distribution trough.
At reacting gas neutralizer entrance top, demister is set；1 layer of spraying layer upwards sprayed is set below demister.
Arranging supervisor, arm, short tube on every layer of spraying layer, arm is arranged on supervisor, and short tube is arranged on arm, wherein
0.7 times of a diameter of predominant tube diameter of arm.
Below described reacting gas neutralizer entrance, column plate that reaction gas inlet is provided above or the number of theoretical plate of filler
It it is 10 pieces；Described column plate is bubble cap tray；Described filler is grid；The liquid distribution trough arranged at neutralizer entrance is
Hole tank type liquid distributor；Below described reacting gas neutralizer entrance, the column plate that is provided above of reaction gas inlet or fill out
The number of theoretical plate of material is 6 pieces.
The clearance of the ammonia in neutralized rear reacting gas reaches 99.5%, in ammonia and device and follow-up system are without blocking, heat exchange
Device heat transfer effect, SR are constant, and organic polymerization losses reduces, and the plant running cycle reaches 18 months, extend
The cycle of operation of device, achieves preferable technique effect.
[embodiment 4]
With the equipment reacted in ammonia, including housing, reaction gas inlet and reaction gas outlet, neutralizer entrance and neutralization
Liquid exports, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on the top of sprinkling equipment, in
Being provided in above reaction gas inlet with liquid entrance, neutralizer outlet is arranged on bottom sprinkling equipment, wherein neutralizer entrance
The spraying layer being made up of by geometry arrangement shower nozzle is set, every layer of described spraying layer arranges supervisor, arm, short tube,
Arm is arranged on supervisor, and short tube is arranged on arm, wherein 0.5 times of a diameter of predominant tube diameter of arm.At reacting gas
Neutralizer entrance top arranges demister；2 layers of spraying layer upwards sprayed are set below demister.
Below described reacting gas neutralizer entrance, column plate that reaction gas inlet is provided above or the number of theoretical plate of filler
It it is 10 pieces；Described column plate is bubble cap tray；Described filler is grid；The liquid distribution trough arranged at neutralizer entrance is
Hole tank type liquid distributor；Below described reacting gas neutralizer entrance, the column plate that is provided above of reaction gas inlet or fill out
The number of theoretical plate of material is 6 pieces.
The described distance between spraying layer is from top to bottom for being stepped up, and the distance between a upper spraying layer is next spraying layer
Between 1.5 times of distance, go up a spraying layer by weight spray flux is next spraying layer spray flux 0.5 times.
The clearance of the ammonia in neutralized rear reacting gas reaches 99.6%, in ammonia and device and follow-up system are without blocking, heat exchange
Device heat transfer effect, SR are constant, and organic polymerization losses reduces, and the plant running cycle reaches 19 months, extend
The cycle of operation of device, achieves preferable technique effect.
[embodiment 5]
Neutralizing device, exports including housing, reaction gas inlet and reaction gas outlet, neutralizer entrance and neutralizer,
Reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on the top of sprinkling equipment, neutralizer entrance
Being provided in above reaction gas inlet, neutralizer outlet is arranged on bottom sprinkling equipment, and wherein neutralizer entrance is arranged by spraying
Head, by the spraying layer of geometry arrangement composition, every layer of described spraying layer arranges supervisor, arm, short tube, and arm is arranged
On supervisor, short tube is arranged on arm, wherein 0.2 times of a diameter of predominant tube diameter of arm.Enter at reacting gas neutralizer
Mouth is provided above demister；2 layers of spraying layer upwards sprayed are set below demister.
Below described reacting gas neutralizer entrance, column plate that reaction gas inlet is provided above or the number of theoretical plate of filler
It it is 10 pieces；Described column plate is bubble cap tray；Described filler is grid；The liquid distribution trough arranged at neutralizer entrance is
Hole tank type liquid distributor；Below described reacting gas neutralizer entrance, the column plate that is provided above of reaction gas inlet or fill out
The number of theoretical plate of material is 6 pieces.
The described distance between spraying layer is from top to bottom for being stepped up, and the distance between a upper spraying layer is next spraying layer
Between 1.5 times of distance, go up a spraying layer by weight spray flux is next spraying layer spray flux 0.5 times.
On described spraying layer, distance between a spraying layer is 1.4 times of the distance between next spraying layer, goes up by weight
The spray flux of one spraying layer is 0.7 times of next spraying layer spray flux.
The clearance of the ammonia in neutralized rear reacting gas reaches 99.6%, in ammonia and device and follow-up system are without blocking, heat exchange
Device heat transfer effect, SR are constant, and organic polymerization losses reduces, and the plant running cycle reaches 19 months, extend
The cycle of operation of device, achieves preferable technique effect.
[embodiment 6]
With the equipment reacted in ammonia, including housing, reaction gas inlet and reaction gas outlet, neutralizer entrance and neutralization
Liquid exports, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on the top of sprinkling equipment, in
Being provided in above reaction gas inlet with liquid entrance, neutralizer outlet is arranged on bottom sprinkling equipment, wherein neutralizer entrance
The spraying layer being made up of by geometry arrangement shower nozzle is set, every layer of described spraying layer arranges supervisor, arm, short tube,
Arm is arranged on supervisor, and short tube is arranged on arm, wherein 0.6 times of a diameter of predominant tube diameter of arm.At reacting gas
Neutralizer entrance top arranges demister；2 layers of spraying layer upwards sprayed are set below demister.
Below described reacting gas neutralizer entrance, column plate that reaction gas inlet is provided above or the number of theoretical plate of filler
It it is 10 pieces；Described column plate is bubble cap tray；Described filler is grid；The liquid distribution trough arranged at neutralizer entrance is
Hole tank type liquid distributor；Below described reacting gas neutralizer entrance, the column plate that is provided above of reaction gas inlet or fill out
The number of theoretical plate of material is 6 pieces.
The described distance between spraying layer is from top to bottom for being stepped up, and the distance between a upper spraying layer is next spraying layer
Between 1.5 times of distance, go up a spraying layer by weight spray flux is next spraying layer spray flux 0.5 times.
On described spraying layer, distance between a spraying layer is 1.4 times of the distance between next spraying layer, goes up by weight
The spray flux of one spraying layer is 0.7 times of next spraying layer spray flux.
The clearance of the ammonia in neutralized rear reacting gas reaches 99.8%, in ammonia and device and follow-up system are without blocking, heat exchange
Device heat transfer effect, SR are constant, and organic polymerization losses reduces, and the plant running cycle reaches 20 months, extend
The cycle of operation of device, achieves preferable technique effect.
[embodiment 7]
Ammonia includes housing, reaction gas inlet and reaction gas outlet, reacting gas neutralizer entrance and reaction with device
Gas neutralizer exports, and reaction gas inlet is arranged in ammonia and device bottom, and reaction gas outlet is arranged in ammonia and device
Top, reacting gas neutralizer entrance is arranged on above reaction gas inlet, and neutralizer outlet is arranged in ammonia and bottom of device,
Wherein in ammonia and device reaction gases neutralizer entrance below, reaction gas inlet be provided above column plate or filler, neutralize
Liquid entrance arranges liquid distribution trough.
At reacting gas neutralizer entrance top, demister is set；2 layers of spraying layer upwards sprayed are set below demister.
Described spraying layer is provided above demister, and demister is board-like demister.
Below described reacting gas neutralizer entrance, column plate that reaction gas inlet is provided above or the number of theoretical plate of filler
It it is 10 pieces；Described column plate is bubble cap tray；Described filler is grid；The liquid distribution trough arranged at neutralizer entrance is
Hole tank type liquid distributor；Below described reacting gas neutralizer entrance, the column plate that is provided above of reaction gas inlet or fill out
The number of theoretical plate of material is 6 pieces.
The described distance between spraying layer is from top to bottom for being stepped up, and the distance between a upper spraying layer is next spraying layer
Between 1.5 times of distance, go up a spraying layer by weight spray flux is next spraying layer spray flux 0.5 times.
Every layer of described spraying layer arranges supervisor, arm, short tube, wherein 0.7 times of a diameter of predominant tube diameter of arm；Short tube
0.7 times of a diameter of arm diameter.
Below reacting gas neutralizer entrance, the number of theoretical plate of column plate that reaction gas inlet is provided above or filler be 2 pieces.
Arranging demister at reacting gas neutralizer entrance top, demister is board-like demister.Reaction gas inlet is arranged
Gas distributor, gas distributor pattern is semicircle cast.
The clearance of the ammonia in neutralized rear reacting gas reaches 99.8%, in ammonia and device and follow-up system are without blocking, heat exchange
Device heat transfer effect, SR are constant, and organic polymerization losses reduces, and the plant running cycle reaches 20 months, extend
The cycle of operation of device, achieves preferable technique effect.
[embodiment 8]
Ammonia includes housing, reaction gas inlet and reaction gas outlet, reacting gas neutralizer entrance and reaction with device
Gas neutralizer exports, and reaction gas inlet is arranged in ammonia and device bottom, and reaction gas outlet is arranged in ammonia and device
Top, reacting gas neutralizer entrance is arranged on above reaction gas inlet, and neutralizer outlet is arranged in ammonia and bottom of device,
Wherein in ammonia and device reaction gases neutralizer entrance below, reaction gas inlet be provided above column plate or filler, neutralize
Liquid entrance arranges liquid distribution trough.At reacting gas neutralizer entrance top, demister is set；Arrange below demister 2 layers to
The spraying layer of upper spray.
Described spraying layer is provided above demister, and demister is wire mesh demister.
Below described reacting gas neutralizer entrance, column plate that reaction gas inlet is provided above or the number of theoretical plate of filler
It it is 10 pieces；Described column plate is bubble cap tray；Described filler is grid；The liquid distribution trough arranged at neutralizer entrance is
Hole tank type liquid distributor；Below described reacting gas neutralizer entrance, the column plate that is provided above of reaction gas inlet or fill out
The number of theoretical plate of material is 6 pieces.
The described distance between spraying layer is from top to bottom for being stepped up, and the distance between a upper spraying layer is next spraying layer
Between 1.5 times of distance, go up a spraying layer by weight spray flux is next spraying layer spray flux 0.5 times.
In ammonia and in device: by the reacting gas neutralizer warp that weight ratio is 0.3 that temperature is 200 DEG C and reacting gas
With reacting gas counter current contacting after liquid distribution trough；Reacting gas after neutralization enters on liquid distribution trough with the speed of 5m/s
Absorption tower is gone to behind side；Neutralizer after neutralization is from ammonia and bottom of device removes wastewater treatment equipment.
The acid that neutralizer adds is sulphuric acid；Neutralizer pH controlling value is 6.5.The removal of the ammonia in neutralized rear reacting gas
Rate reaches 99.7%, and in ammonia and device and follow-up system are without blocking, heat exchanger heat transfer effect, SR are constant, Organic substance
Polymerization losses reduce, the plant running cycle reaches 18 months, extends the cycle of operation of device, achieve preferable skill
Art effect.
[embodiment 9]
Neutralize the device of reaction, including housing, reaction gas inlet and reaction gas outlet, neutralizer entrance and neutralizer
Outlet, reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on the top of sprinkling equipment, neutralizes
Liquid entrance is provided in above reaction gas inlet, and neutralizer outlet is arranged on bottom sprinkling equipment, and wherein neutralizer entrance sets
Put the spraying layer being made up of by geometry arrangement shower nozzle, every layer of described spraying layer arranges supervisor, arm, short tube,
Pipe is arranged on supervisor, and short tube is arranged on arm, wherein 0.5 times of a diameter of predominant tube diameter of arm.Described spraying layer
Between distance from top to bottom for being stepped up, the distance between a upper spraying layer is 1.5 of the distance between next spraying layer
Times.Described spraying layer is provided above demister.At reacting gas neutralizer entrance top, demister is set；Below demister
2 layers of spraying layer upwards sprayed are set.
Neutralizing the spraying method of reaction, use above-mentioned sprinkling equipment, being 50 DEG C by temperature with the weight ratio of reacting gas is
The neutralizer of 10 sprays, with reacting gas counter current contacting from the spraying layer being made up of by geometry arrangement shower nozzle；
Reacting gas after neutralization enters above spraying layer with the speed of 2m/s, enters subsequent absorption system after mist eliminator.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 150 DEG C；Reacting gas cleaning mixture and reaction gas
The weight ratio of body is 10.
Go up a spraying layer by weight spray flux is next spraying layer spray flux 0.5 times.
The acid that neutralizer adds is sulphuric acid；Neutralizer pH controlling value is 6.0.The removal of the ammonia in neutralized rear reacting gas
Rate reaches 99.8%, and in ammonia and device and follow-up system are without blocking, heat exchanger heat transfer effect, SR are constant, Organic substance
Polymerization losses reduce, the plant running cycle reaches 20 months, extends the cycle of operation of device, achieve preferable skill
Art effect.
Claims (18)
1. in ammonia and a device, in ammonia and device includes housing, reaction gas inlet and reaction gas outlet, reaction gas
Body neutralizer entrance and the outlet of reacting gas neutralizer, reaction gas inlet is arranged in ammonia and device bottom, and reacting gas goes out
Mouth is arranged in ammonia and device top, and reacting gas neutralizer entrance is arranged on above reaction gas inlet, and neutralizer outlet sets
Putting in ammonia and bottom of device, in ammonia and below device reaction gases neutralizer entrance, reaction gas inlet is provided above
Column plate or filler, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, reaction gas by geometry arrangement
Body neutralizer and reacting gas counter current contacting, arrange demister at reacting gas neutralizer entrance top；Arrange below demister
The spraying layer that 1-2 layer upwards sprays.
In ammonia the most according to claim 1 and device, it is characterised in that below described reacting gas neutralizer entrance,
Column plate or the number of theoretical plate of filler that reaction gas inlet is provided above are 1～10 piece；Described column plate include float valve, sieve aperture,
Bubble-cap, at least one guided in sieve aperture, rotation column plate；Described filler include grid, regular corrugation filler, Raschig ring,
At least one in Pall ring, cascade ring, intalox saddle.
In ammonia the most according to claim 2 and device, it is characterised in that under described reacting gas neutralizer entrance
The number of theoretical plate of side, the column plate that reaction gas inlet is provided above or filler is 2～6 pieces.
In ammonia the most according to claim 3 and device, it is characterised in that below described reacting gas neutralizer entrance,
Column plate or the number of theoretical plate of filler that reaction gas inlet is provided above are 1～2 piece.
In ammonia the most according to claim 1 and device, it is characterised in that described reacting gas neutralizer entrance is arranged
Spraying layer be 1～8 layer；The arrangement density of every layer of shower nozzle is 1～4 shower nozzle/m2；The geometry bag of every layer of water-spraying fabric
Include at least one in square, rectangle, equilateral triangle, concentric circular annular；Described shower nozzle includes hollow cone, solid
At least one in cone, screw type, air atomizing shower nozzle；The demister that spraying layer is provided above includes board-like demister, silk
At least one in net demister, bubble cap tray, sieve plate, filler.
In ammonia the most according to claim 5 and device, it is characterised in that described reacting gas neutralizer entrance is arranged
Neutralizer spraying layer be 2～4 layers；The arrangement density of every layer of shower nozzle is 1～2 shower nozzle/m2。
In ammonia the most according to claim 1 and device, it is characterised in that the described distance between spraying layer from lower to
Upper for being stepped up, the distance between a upper spraying layer is 1-1.5 times of the distance between next spraying layer, goes up by weight
The spray flux of one spraying layer is 0.5-1 times of next spraying layer spray flux.
In ammonia the most according to claim 7 and device, it is characterised in that on described spraying layer between a spraying layer
Distance is 1.05-1.4 times of the distance between next spraying layer, and the spray flux going up a spraying layer by weight is next spraying layer
0.7-0.99 times of spray flux.
In ammonia the most according to claim 8 and device, it is characterised in that on described spraying layer between a spraying layer
Distance is 1.1-1.2 times of the distance between next spraying layer, and the spray flux going up a spraying layer by weight is next spraying layer
0.8-0.9 times of spray flux.
In ammonia the most according to claim 1 and device, it is characterised in that every layer of described spraying layer arrange supervisor,
Arm, short tube, wherein 0.2-0.7 times of a diameter of predominant tube diameter of arm；0.2-0.7 times of short tube a diameter of arm diameter.
In 11. ammonia according to claim 10 and device, it is characterised in that a diameter of predominant tube diameter of described arm
0.2-0.5 times；0.3-0.5 times of short tube a diameter of arm diameter.
In 12. ammonia according to claim 11 and device, it is characterised in that a diameter of predominant tube diameter of described arm
0.3-0.4 times；0.3-0.4 times of short tube a diameter of arm diameter.
In 13. ammonia according to claim 1 and device, it is characterised in that described at reacting gas neutralizer entrance
Being provided above demister, demister includes at least in board-like demister, wire mesh demister, bubble cap tray, sieve plate, filler
Kind.
In 14. ammonia according to claim 1 and device, it is characterised in that described reaction gas inlet arranges gas and divides
Cloth device, gas distributor pattern includes the one in semicircle cast, pipe distributor, dendroid porous type, biserial vane type.
15. 1 kinds of ammonia neutralization method, use in any one ammonia described in claim 1～14 and device, including as follows
Several steps: a) by the reacting gas neutralizer that weight ratio is 0.3～20 that temperature is 50～200 DEG C and reacting gas from by
Shower nozzle sprays, with reacting gas counter current contacting in the neutralizer spraying layer by geometry arrangement composition；B) neutralize after anti-
Answer gas to enter above spraying layer with the speed of 0.2～5m/s, after demister, enter subsequent absorption system.
16. ammonia neutralization method according to claim 15, it is characterised in that the described reaction contacted with reacting gas
The temperature of gas neutralizer is 50～150 DEG C；Reacting gas neutralizer is 1～5 with the weight ratio of reacting gas, and neutralizer adds
Acid.
17. ammonia neutralization method according to claim 16, it is characterised in that the described reaction contacted with reacting gas
The temperature of gas neutralizer is 70～120 DEG C；Reacting gas neutralizer is 1.5～3 with the weight ratio of reacting gas；Neutralizer adds
The acid entered is at least one in sulphuric acid, acetic acid, oxalic acid, phosphoric acid, acrylic acid, formic acid, carbonic acid；Neutralizer pH controls
Value is 3-6.5,.
18. ammonia neutralization method according to claim 15, it is characterised in that described enters above liquid distribution trough
The speed of reacting gas is 1～2m/s；Neutralizer part recycles；Acid be in sulphuric acid, acetic acid, oxalic acid, phosphoric acid at least
A kind of；Neutralizer pH controlling value is 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052346.0A CN105983317A (en) | 2015-01-31 | 2015-01-31 | Ammonia neutralization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052346.0A CN105983317A (en) | 2015-01-31 | 2015-01-31 | Ammonia neutralization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105983317A true CN105983317A (en) | 2016-10-05 |
Family
ID=57037215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510052346.0A Pending CN105983317A (en) | 2015-01-31 | 2015-01-31 | Ammonia neutralization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105983317A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10119991A1 (en) * | 2001-04-23 | 2002-10-24 | Stephan Pieper | Purification of biogas containing hydrogen sulfide and ammonia, removes hydrogen sulfide at least partially by absorption into alkaline wash solution |
| CN1981912A (en) * | 2005-12-14 | 2007-06-20 | 中国石油化工股份有限公司 | Gas chilled absorbing tower |
| CN201880482U (en) * | 2010-11-19 | 2011-06-29 | 上海弗卡斯环保工程有限公司 | Stepped spray tower for desulfurization by ammonia method |
| CN103446865A (en) * | 2013-07-03 | 2013-12-18 | 四川大学 | Nitrophosphate tail gas deamination device and nitrophosphate tail gas deamination process |
| CN203458968U (en) * | 2013-07-31 | 2014-03-05 | 重庆华强投资集团有限公司 | Ammonium nitrate process steam washing tower |
| CN203777923U (en) * | 2014-03-31 | 2014-08-20 | 英尼奥斯欧洲股份公司 | Improved ammonia removal process for reactor effluents |
| CN203777915U (en) * | 2014-04-18 | 2014-08-20 | 中石化南京工程有限公司 | System for treating low-concentration ammonium-contained tail gas |
-
2015
- 2015-01-31 CN CN201510052346.0A patent/CN105983317A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10119991A1 (en) * | 2001-04-23 | 2002-10-24 | Stephan Pieper | Purification of biogas containing hydrogen sulfide and ammonia, removes hydrogen sulfide at least partially by absorption into alkaline wash solution |
| CN1981912A (en) * | 2005-12-14 | 2007-06-20 | 中国石油化工股份有限公司 | Gas chilled absorbing tower |
| CN201880482U (en) * | 2010-11-19 | 2011-06-29 | 上海弗卡斯环保工程有限公司 | Stepped spray tower for desulfurization by ammonia method |
| CN103446865A (en) * | 2013-07-03 | 2013-12-18 | 四川大学 | Nitrophosphate tail gas deamination device and nitrophosphate tail gas deamination process |
| CN203458968U (en) * | 2013-07-31 | 2014-03-05 | 重庆华强投资集团有限公司 | Ammonium nitrate process steam washing tower |
| CN203777923U (en) * | 2014-03-31 | 2014-08-20 | 英尼奥斯欧洲股份公司 | Improved ammonia removal process for reactor effluents |
| CN203777915U (en) * | 2014-04-18 | 2014-08-20 | 中石化南京工程有限公司 | System for treating low-concentration ammonium-contained tail gas |
Non-Patent Citations (1)
| Title |
|---|
| 中国环境科学学会: "《中国环境科学学会学术年会优秀论文集 下卷》", 31 December 2006, 中国环境科学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203316002U (en) | Double-tower desulfurization system | |
| CN110787766B (en) | Tower type reaction device and process for preparing fatty acid butyl ester | |
| CN105983319B (en) | Multi-layer sprinkling device | |
| CN108211743A (en) | A kind of deacidifying flue gas denitrification integrated device and its application method | |
| CN203829895U (en) | Phosgene synthesis tail gas absorption and processing device | |
| CN105983322B (en) | The sprinkling equipment of neutralization reaction | |
| CN110898620A (en) | Fountain exhaust gas purification device | |
| CN203108431U (en) | Double-step flue gas desulfurization tower | |
| EP3323485B1 (en) | Crystallization column and crystallization method | |
| CN105983323A (en) | Spraying device and neutralization method | |
| CN105983317A (en) | Ammonia neutralization device | |
| CN105983313A (en) | Apparatus and method for removing ammonia in ammoxidation gas | |
| CN105983321B (en) | In ammonia and device and neutralization method | |
| CN105983315A (en) | Multilevel spraying device and neutralization method | |
| CN105983318A (en) | Acid addition level regulating device for neutralization reaction tower | |
| CN105983314A (en) | Automatic control device and method for amount of acid added into neutralization tower | |
| CN105983316A (en) | Spraying equipment and method for neutralization reaction | |
| TWI706117B (en) | Improved ammonia removal from reactor effluent | |
| CN212881709U (en) | Multistage tail gas treatment system | |
| CN217341285U (en) | Production device for chloroacetaldehyde | |
| CN220715796U (en) | Production device for producing dimorpholinodiethyl ether by adopting N-hydroxyethyl morpholine | |
| CN220531526U (en) | Dimethylformamide reactor for preventing bottom crystals from gathering | |
| CN112439308A (en) | Method for removing acidic liquid in gas phase at top of quenching tower of acrylonitrile device | |
| CN211159084U (en) | Tail gas treatment device for calcium ammonium nitrate production process | |
| CN105987634B (en) | The supplementing device of water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161005 |
|
| RJ01 | Rejection of invention patent application after publication |