CN103881755B - Device and method for preparing raw materials - Google Patents
Device and method for preparing raw materials Download PDFInfo
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- CN103881755B CN103881755B CN201410125713.0A CN201410125713A CN103881755B CN 103881755 B CN103881755 B CN 103881755B CN 201410125713 A CN201410125713 A CN 201410125713A CN 103881755 B CN103881755 B CN 103881755B
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Abstract
The invention discloses a device and a method for preparing raw materials, relating to the technical field of catalytic coal gasification. The process flow is simple, the device is simple and easily operated, and the energy consumption during manufacture is low. The device for preparation of raw materials disclosed by the invention comprises a rotary cylinder, a gas feeding device and a catalyst feeding device, wherein the rotary cylinder is used for pre-treating coal, loading a catalyst on the coal and drying the coal loaded with a catalyst; the gas feeding device is used for enabling gas at preset temperature to enter the rotary cylinder; and the catalyst feeding device is used for enabling a catalyst water liquid to enter the rotary cylinder. The device and the method are suitable for preparing raw materials for catalytic coal gasification technologies.
Description
Technical field
The present invention relates to catalytic coal gasifaction technical field, particularly relate to a kind of raw material preparation facilities and
Method.
Background technology
Coal stores rich in natural resources as one, occupies critical positions in energy resource structure.Coal
Gasification be efficiently, one of the main path of clean utilization coal, and the catalytic gasification in coal gasification
Gasification temperature can be effectively reduced, improve gasification rate, control gas composition, be that one has
The gasification mode of effect, caused the extensive concern of enterprise in one's power of Chinese scholars, Research Center in recent years.
Catalytic coal gasifaction is to carry out under the solid state of coal, and catalyst and coal particle are according to one
Mixing, the catalyst of coal particle surface distribution is slotted by erosion fixed ratio uniform
Effect, makes coal particle and gasifying agent better contact with and accelerate gasification reaction.
In prior art, in coal catalytic gasification technique, the preparation technology of raw material is predominantly: first to coal
Granule carries out pre-oxidation treatment, then by the coal particle after pre-oxidation treatment and aqueous catalyst solution
Mixing carries out catalyst load, is then dried by the wet coal particle of impregnated catalyst, or,
Directly coal particle mixed with aqueous catalyst solution, be then dried, thus prepare coal supply catalysis
The raw material that gasifying process uses.
Prior art have the disadvantage in that by pre-oxidation treatment-mixing-be dried or mixing-be dried
Prepare raw material etc. at least two process, and each technical process is required for corresponding equipment, technique
Flow process is complicated, and equipment is more, and pre-oxidizes bigger with energy consumption in dry run.
Summary of the invention
Present invention is primarily targeted at, it is provided that a kind of raw material preparation facilities and method, technique stream
Journey is simple, equipment is simple to operation, energy consumption is relatively low in manufacture process.
For reaching above-mentioned purpose, the present invention adopts the following technical scheme that
On the one hand, the invention provides a kind of raw material preparation facilities, wherein, including:
Being provided with the rotating cylinder of feed inlet and outlet and gas outlet, pretreatment, catalyst for coal exist
Load on described coal and be loaded with being dried of coal of catalyst；
Gas enters device, is used for making predetermined temperature gas enter described rotating cylinder；
Catalyst enters device, is used for making aqueous catalyst solution enter described rotating cylinder.
Specifically, described gas enters the center of rotation that device includes being located in described rotating cylinder
On axle or at least conduit being located in described rotating cylinder, on every conduit vertically
It is provided with several holes；And/or
Described gas enters at least one spray that device includes being located on described rotating cylinder sidewall
Mouth.
It addition, described catalyst enters the center of rotation that device includes being located in described rotating cylinder
On axle or at least conduit being located in described rotating cylinder, on every conduit vertically
It is provided with several holes；And/or
Described catalyst enters at least one spray that device includes being located on described rotating cylinder sidewall
Mouth.
Further, described raw material preparation facilities also includes the steam being connected with described feed inlet and outlet
Displacement apparatus, for displacing the steam of the described dried coal absorption being loaded with catalyst；
Or
Described raw material preparation facilities also includes entering dress with described feed inlet and outlet, described gas respectively
Put connected steam displacement apparatus, for by the described dried coal absorption being loaded with catalyst
Steam displace and make described steam to be again introduced into described rotating cylinder.
It addition, described raw material preparation facilities also includes heat exchanger, it is used for making predetermined gas and from institute
State gas outlet expellant gas and carry out heat exchange.
Alternatively, the temperature of described predetermined temperature gas is 120 DEG C～400 DEG C.
Alternatively, described predetermined temperature gas is superheated steam；Or
Described predetermined temperature gas is that superheated steam is any with air, nitrogen, argon, helium
The mixture of one or more.
On the other hand, the embodiment of the present invention additionally provides a kind of method for preparing raw material, employs
State technical scheme provide any one described raw material preparation facilities, wherein, including:
Enter device by gas and predetermined temperature gas is passed through described rotating cylinder, so that coal enters
Row pretreatment；
The gas in described rotating cylinder is made to discharge by gas outlet；
Entering device by catalyst makes aqueous catalyst solution enter described rotating cylinder, so that urging
Agent loads on described coal；
The coal being loaded with catalyst is dried under described predetermined temperature gas effect；
The dried coal being loaded with catalyst is made to leave described rotating cylinder by feed inlet and outlet.
Specifically, described by gas enter device predetermined temperature gas is passed through described revolving drum
Body specifically includes:
By being located on the center of rotation axle in described rotating cylinder or being located at described revolving drum
Predetermined temperature gas is passed through described rotating cylinder, described pre-constant temperature by least internal conduit
Spend gas by several pore size distributions axially disposed on every conduit at whole described revolving drum
Internal；And/or
Predetermined temperature gas is made to lead to by least one nozzle being located on described rotating cylinder sidewall
Enter described rotating cylinder.
Aqueous catalyst solution is made to enter described revolving drum it addition, described by catalyst entrance device
Body specifically includes:
By being located on the center of rotation axle in described rotating cylinder or being located at described revolving drum
Aqueous catalyst solution is passed through described rotating cylinder, described catalyst by least internal conduit
Aqueous solution is dispersed in described rotating cylinder by several holes axially disposed on every conduit
In；And/or
Aqueous catalyst solution is made to spray by least one nozzle being located on described rotating cylinder sidewall
Enter described rotating cylinder.
Further, described the dried coal being loaded with catalyst is made by described feed inlet and outlet
After leaving described rotating cylinder, described method also includes:
The described dried coal being loaded with catalyst is emitted in steam displacement apparatus；
The steam of the described dried coal absorption being loaded with catalyst is displaced；Or
The described dried coal being loaded with catalyst is emitted in steam displacement apparatus；
The steam of the described dried coal absorption being loaded with catalyst is displaced；
Make described steam enter device by described gas and be again introduced into described rotating cylinder.
It addition, after the described gas discharge made by gas outlet in described rotating cylinder, described
Method also includes:
In heat exchanger, use predetermined gas and carry out heat exchange from described gas outlet expellant gas.
Alternatively, at least one during described predetermined gas is air, nitrogen, argon, helium.
The raw material preparation facilities of embodiment of the present invention offer and method, mainly include rotating cylinder,
Coal enters rotating cylinder by feed inlet and outlet, then makes rotating cylinder around self center of rotation axle
Persistently rotating, coal then moves along with rotating cylinder；Predetermined temperature gas enters device by gas
Be passed through in rotating cylinder, the coal constantly moved with rotating cylinder with there is the predetermined of uniform temperature
Temperature gas is fully contacted, thus effectively carries out pretreatment；Gas in rotating cylinder passes through
Gas outlet is discharged, thus ensures that temperature, pressure can be maintained constant level by rotating cylinder,
So, effectively carrying out of pretreatment it is effectively guaranteed；After preprocessing process terminates, catalyst
Aqueous solution enters device by catalyst and enters rotating cylinder, and pretreated coal is persistently rotating
Rotating cylinder in be fully contacted with catalyst mix and chemically and/or physics mode and
Catalyst fully combines, so that catalyst is supported on coal equably；Further, pre-owing to being passed through
Fixed temperature gas, thus wet coal mixed with aqueous catalyst solution is gradually dried, to be formed
The coal being loaded with catalyst being dried, thus obtained the raw material for catalytic coal gasifaction, and lead to
Cross feed inlet and outlet to discharge.It is to say, in the embodiment of the present invention, the pretreatment of coal, catalyst
Load and being dried of wet coal all carry out in rotating cylinder, whole technological process is simple,
Equipment needed thereby is simple to operation, and, whole technical process only need to be passed through predetermined temperature gas,
Energy consumption is relatively low.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing used required in embodiment or description of the prior art will be briefly described, aobvious and
Easily insight, the accompanying drawing in describing below is only some embodiments of the present invention, for this area
From the point of view of those of ordinary skill, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
The structural representation of a kind of raw material preparation facilities that Fig. 1 provides for the embodiment of the present invention；
The structural representation of the another kind of raw material preparation facilities that Fig. 2 provides for the embodiment of the present invention；
The flow chart of a kind of method for preparing raw material that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention
Case is clearly and completely described, it is clear that described embodiment is only the one of the present invention
Section Example rather than whole embodiments.Based on the embodiment in the present invention, this area
The every other enforcement that those of ordinary skill is obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, embodiments provide a kind of raw material preparation facilities, including: set
There is the rotating cylinder 11 of feed inlet and outlet 111 and gas outlet 113, for pretreatment, the catalysis of coal
Agent load on coal and be loaded with being dried of coal of catalyst；Gas enters device 13,
For making predetermined temperature gas a enter rotating cylinder 11；Catalyst enters device 15, is used for making
Aqueous catalyst solution c enters rotating cylinder 11.
The raw material preparation facilities that the embodiment of the present invention provides, mainly includes rotating cylinder 11, and coal leads to
Cross feed inlet and outlet 111 and enter rotating cylinder 11, in then making rotating cylinder 11 rotate around self
Mandrel persistently rotates, and coal then moves along with rotating cylinder 11；Predetermined temperature gas a passes through gas
Enter device 13 be passed through in rotating cylinder 11, the coal constantly moved with rotating cylinder 11 with have
The predetermined temperature gas a of uniform temperature is fully contacted, thus effectively carries out pretreatment；Revolution
Gas b in cylinder 11 is discharged by gas outlet 113, thus ensures that rotating cylinder 11 can
Temperature, pressure are maintained constant level, so, is effectively guaranteed effectively entering of pretreatment
OK；After preprocessing process terminates, aqueous catalyst solution c enters device 15 by catalyst and enters
Rotating cylinder 11, the pretreated coal constantly moved with rotating cylinder 11 fully connects with catalyst
Touch mixing chemically and/or physics mode is fully combined with catalyst, so that catalyst
It is supported on equably on coal；Further, owing to being passed through predetermined temperature gas a, thus with catalyst water
The mixed wet coal of solution c is gradually dried, to form the coal being loaded with catalyst being dried,
Thus obtained the raw material for catalytic coal gasifaction, and discharged by feed inlet and outlet 111.The most just
It is to say, in the embodiment of the present invention, doing of the pretreatment of coal, the load of catalyst and wet coal
Dry all carrying out in rotating cylinder 11, whole technological process is simple, equipment needed thereby is simple to operation,
Further, only need to be passed through predetermined temperature gas in whole technical process, energy consumption is relatively low.
It should be noted that predetermined temperature gas of the present invention refers to have uniform temperature
Superheated steam, such as, this gas temperature can be 120 DEG C～400 DEG C, it is therefore preferable to 150 DEG C
～300 DEG C, such as 120 DEG C, 150 DEG C, 180 DEG C, 200 DEG C, 220 DEG C, 250 DEG C, 280 DEG C,
300 DEG C, 350 DEG C or 400 DEG C；The composition of this gas can also comprise air, nitrogen, argon,
At least one in helium.
Predetermined temperature gas can be continually fed in rotating cylinder 11, it is also possible to between impulse form
It is passed through with having a rest in rotating cylinder 11, in a word, as long as can guarantee that coal is in predetermined temperature gas a effect
Under carry out pretreatment and dried, the present invention is specifically passed through predetermined temperature gas a's
Form and flow velocity are not construed as limiting.Specifically, this gas can be by special heating devices heat
Become, it is also possible to the Industry Waste steam produced in coal gasification course, such as low taste vapours,
The most not only realize the energy again with, moreover it is possible to reduce environmental pollution.
Also, it should be noted the present invention uses the predetermined temperature gas of 120 DEG C～400 DEG C to enter coal
Row pretreatment, essentially consists in the characteristic improving coal, weakens coal initial in coal catalytic gasification technique
Expansion in devolatilization process, to increase bed density, to increase bed body treating capacity, minimizing bed
Material caking, and, increase effective uniform load of catalyst, thus improve the catalysis of catalyst
Performance, is people in the art as the physical and chemical changes occurred concrete in preprocessing process
Well known to Yuan, this is not described in detail by the present invention.
Time needed for Coal pretreatment process specifically can regulate according to practical situation, works as revolving drum
After the volume of body 11, the addition total amount of coal, the temperature of predetermined temperature gas a and flow determine,
Those skilled in the art can obtain this pretreatment time by the experiment of limited number of time, the most permissible
For 1h, 2h, 3h, 4h etc., as long as can guarantee that coal can be by abundant pretreatment, the present invention
This is not construed as limiting.
Similarly, after adding aqueous catalyst solution, the drying time of wet coal can also be according to reality
Situation specifically regulates, and can be such as 1h, 2h, 3h, 4h etc., and this is not limited by the present invention
Fixed；Specifically, the length that drying time can be suitable is a little, to ensure that dried being loaded with is catalyzed
The water content of the coal of agent is below 10%, more preferably below 5%, say, that by adjusting
Whole drying time, can effectively regulate the water content of the dried coal being loaded with catalyst.
As it is shown in figure 1, predetermined temperature gas enters device 13 by gas enters rotating cylinder 11,
It can be to be located on the center of rotation axle in rotating cylinder 11 at least that this gas enters device 13
A piece conduit (or referred to as admission line) 131；Further, on every conduit 131 vertically, footpath
To being provided with several holes (i.e. pore) 131-1, it is used for making predetermined temperature gas a be evenly distributed on
To be fully contacted with coal in whole rotating cylinder 11；Preferably, the length of conduit 131 equal to or
The length of central shaft is rotated in being slightly less than rotating cylinder 11.
Predetermined temperature gas a enters rotating cylinder 11 by conduit 131, and by several holes
131-1 rapid conductive pipe 131 external diffusion, it is evenly distributed in whole rotating cylinder 11, thus
It is fully contacted with coal, so that these coals are carried out pretreatment.
Alternatively, conduit 131 can also be located in rotating cylinder 11, than such as parallel in Xuan Zhuaning
Mandrel direction, arrange along rotating cylinder 11 inwall, or around rotating cylinder 11 internal coiling cloth
Put；Specifically, the embodiment of the present invention is to the quantity of conduit 131, diameter, material, Yi Jikong
The quantity of 131-1, shape, size, density are not construed as limiting, and those skilled in the art can basis
Practical situation arbitrarily regulates, in a word, as long as can guarantee that predetermined temperature gas by conduit 131 and
Hole 131-1 is evenly distributed in whole rotating cylinder 11.
Include being located on rotating cylinder 11 sidewall as it is shown in figure 1, catalyst enters device 15
At least one nozzle 151, for spraying into aqueous catalyst solution c in rotating cylinder 11.Pre-place
When coal after reason rotates with the rotating cylinder 11 persistently rotated, will press close to back under centrifugal action
The inwall of drum body 11, and the catalyst water sprayed into from the nozzle 151 of rotating cylinder 11 sidewall
Solution c can mix with these pretreated coals rapidly thus carry out the load of catalyst.
Specifically, nozzle 151 can be fixed on rotating cylinder 11 sidewall, each nozzle 151
All connect and have conduit 153, airtight revolving between conduit 153 and nozzle 151, can be provided with
Converting interface (not shown), so, when nozzle 151 rotates with rotating cylinder 11, nozzle 151
And also rotate against between conduit 153, thus avoid conduit 153 to rotate with rotating cylinder 11 and
Twist off phenomenon.For design parameters such as the quantity of nozzle, shape, distribution density, sizes
The embodiment of the present invention is not construed as limiting, and those skilled in the art can choose at random according to practical situation,
Such as it is shown in figure 1, nozzle 153 the most equally spaced can be distributed in rotating cylinder 11 sidewall
On.
It should be noted that in other embodiments of the invention, the use described in above-described embodiment
May also be used for being passed through aqueous catalyst solution in the conduit being passed through predetermined temperature gas, i.e. gas enters
Enter device and can be the described above rotation being located in rotating cylinder with catalyst entrance device
On central shaft or at least conduit being located in rotating cylinder.
For example, it is possible to respectively by tee T the conduit of predetermined temperature gas will be used for and be used for urging
The conduit of agent aqueous solution is connected to conduit and enters the porch of rotating cylinder, it is preferable that use
Between the conduit and tee T of predetermined temperature gas, for the conduit and three of aqueous catalyst solution
Can be separately installed with control valve between siphunculus, so, predetermined temperature gas is water-soluble with catalyst
Liquid can share a set of conduit, only needs the adjusting control valve i.e. flow velocity of both scalable, intake
Deng so that whole raw material preparation facilities is only made up of a rotating cylinder and a set of conduit, equipment
Simpler, more convenient to operate, technological process prepared by raw material is simpler.
Or, the conduit for predetermined temperature gas is permissible with the conduit for aqueous catalyst solution
Separate, i.e. the conduit for predetermined temperature gas is only used for inputting predetermined temperature gas, uses
Conduit in aqueous catalyst solution is only used for inputting aqueous catalyst solution, and both conduits can be put down
Row arranges, arranged in a crossed manner, or on the center of rotation axle that wherein is set in rotating cylinder, another
One is set on rotating cylinder inwall, in a word, as long as both conduits are all disclosed by the invention
On the center of rotation axle being located in rotating cylinder or be located in rotating cylinder at least one leads
Manage, its concrete layout be will not enumerate.
Similarly, the nozzle for being sprayed in rotating cylinder by aqueous catalyst solution may also be used for
Input predetermined temperature gas, i.e. gas enter device and can be above-mentioned with catalyst entrance device
Described at least one nozzle being located on rotating cylinder sidewall.
For example, it is possible to respectively by tee T the conduit of predetermined temperature gas will be used for and be used for urging
The conduit of agent aqueous solution is connected to the entrance of each nozzle, it is preferable that for predetermined temperature
Between conduit and the tee T of gas, for can between the conduit and tee T of aqueous catalyst solution
To be separately installed with control valve, so, predetermined temperature gas can share with aqueous catalyst solution
Each nozzle, only needs the adjusting control valve i.e. flow velocity of both scalable, intake etc. so that whole
Individual raw material preparation facilities is only made up of a rotating cylinder and a set of nozzle, equipment is simpler,
More convenient to operate, technological process prepared by raw material is simpler.
Or, the nozzle for predetermined temperature gas is permissible with the nozzle for aqueous catalyst solution
Independently, i.e. the nozzle for predetermined temperature gas is only used for inputting predetermined temperature gas, uses
Nozzle in aqueous catalyst solution is only used for inputting aqueous catalyst solution, and both nozzles can one
Row row be arranged in parallel or the most arranged in a crossed manner, in a word, as long as both nozzles are all this
At least one nozzle being located on rotating cylinder sidewall of disclosure of the invention, for its concrete cloth
Put and will not enumerate.
As in figure 2 it is shown, the raw material preparation facilities that the embodiment of the present invention provides can also include and enter
The steam displacement apparatus 17 that discharging opening 111 is connected, is used for using substitution gas d' by dried
The steam of the coal absorption being loaded with catalyst displaces.
Specifically, after aqueous catalyst solution c mixes with coal, use predetermined temperature gas a will
It is dried, but may be adsorbed with more steam in the pellet pores of dried coal, when coal is cold
But, time, the steam in hole can be condensed into water, and so, the water content of these coals will be above gasification
The water content of stove feed stock for blast furnace, thus can not be directly as the raw material of coal catalytic gasification technique.
At this point it is possible to as in figure 2 it is shown, the dried load will discharged from rotating cylinder 11
The coal having catalyst is emitted into steam displacement apparatus 17, then uses substitution gas d' by dried
The steam e of pellet pores internal adsorption of the coal being loaded with catalyst displace, so, use
Replaced before there is the steam cooling that the substitution gas d' of uniform temperature adsorbs in the granule of coal
Fall, steam e can be effectively prevented and be condensed into water, thus be effectively guaranteed as raw material
The water content of coal.After displacement, the steam content of coal is substantially reduced, and has obtained meeting catalytic coal gasifaction
The feed stock for blast furnace of technological requirement, can be directly entered gasification furnace.
It should be noted that steam displacement apparatus 17 can be any can to use substitution gas d'
The device displaced by the steam e of absorption in the pellet pores of coal, can be such as fluid bed,
Substitution gas d' enters from fluid bed bottom through distribution device such as distribution grid with certain flow rate, thus
The steam e of absorption in the pellet pores of Coal in Fluidized Bed is displaced, the steam e being replaced
And substitution gas d' discharges through fluid bed top exit；Also may be used in the top and bottom of this fluid bed
To be respectively equipped with opening, to be respectively used to the inlet and outlet of coal, the coal after displacement will be as former
Material X discharges from steam displacement apparatus 17.
Substitution gas d' described in the embodiment of the present invention refers to for replacing the steam e that coal is adsorbed
The gas with uniform temperature, such as, this gas temperature can be 120 DEG C～400 DEG C, preferably
Ground be 150 DEG C～300 DEG C, such as 120 DEG C, 150 DEG C, 180 DEG C, 200 DEG C, 220 DEG C, 250 DEG C,
280 DEG C, 300 DEG C, 350 DEG C or 400 DEG C；The composition of this gas can be air, nitrogen, argon
At least one in gas, helium.
Preferably, steam displacement apparatus 17 can also enter device 13 with gas and be connected, so,
The steam e being replaced can enter device 13 by gas and be again introduced into described rotating cylinder
11, so that coal being carried out pretreatment with these steam e or being dried, reach following of energy
Ring utilizes.
As in figure 2 it is shown, the raw material preparation facilities that the embodiment of the present invention provides can also include respectively
The heat exchanger 19 being connected with gas outlet 113, steam displacement apparatus 17, is used for using predetermined gas
D carries out heat exchange with expellant gas b from rotating cylinder 11, so that predetermined gas d heats up is
Substitution gas d', expellant gas b is made to lower the temperature.
Specifically, from rotating cylinder 11 expellant gas b and predetermined gas d at heat exchanger 19
In carry out heat exchange, so, partial heat is passed to predetermined gas d and makes it by these gas b
Heat up and enter steam displacement apparatus 17 by the pellet pores of coal for substitution gas d', substitution gas d'
In steam e displace, and these gas b self will lower the temperature, say, that passes through heat exchange
Device 19 can make full use of the heat carried in gas, to reach recycling of energy.
It should be noted that heat exchanger 19 can be any can use predetermined gas d with from return
In drum body 11, expellant gas b carries out the device of heat exchange, and this device can be by commercially available side
Formula obtains, it is also possible to being obtained by self assembly, those skilled in that art can be according to actual need
Arbitrarily select, this is not described in detail by the present invention.
It should be noted that predetermined gas d refers to previously selected gas, can be such as empty
At least one in gas, nitrogen, argon, helium；Predetermined gas d with from rotating cylinder 11
After expellant gas b carries out heat exchange, become for substitution gas d' described above；After heat exchange
Substitution gas d' can be directly entered steam displacement apparatus 17, then, now substitution gas d'
Temperature less than the temperature of predetermined temperature gas a, or, the substitution gas d' after heat exchange can be through
Steam displacement apparatus 17, i.e. heat exchanger 19 and steam displacement apparatus is entered back into further after heating
Heater (not shown) can be provided with between 17, then, now the temperature of substitution gas d' can
With the temperature less than, greater than or equal to predetermined temperature gas a, in a word, if substitution gas d'
There is certain temperature, it is possible to by the steam e in the pellet pores of coal in steam displacement apparatus 17
Displacing, the temperature difference for substitution gas d' with predetermined temperature gas a the most specifically limits
Fixed.
Preferably, heat exchanger 19 can also enter device 15 with catalyst and be connected, so, from
Water b' will be condensed into after the steam cooling contained in expellant gas b in rotating cylinder 11, this
A little water b' will be mixed into aqueous catalyst solution c with catalyst and be again introduced into rotating cylinder 11, with
Reach recycling of water.
It is to say, heat exchanger 19 can respectively with gas outlet 113, steam displacement apparatus 17 with
And catalyst enters device 15 and is connected, as such, it is possible to use predetermined gas d and from gas outlet 113
Expellant gas b carries out heat exchange so that the predetermined gas after heat exchange enters steam displacement apparatus 17
In, and make the water vapor condensation in the gas after heat exchange be water and enter device 15 by catalyst
It is again introduced in rotating cylinder 11.
Certainly, heat exchanger 19 only can also enter device 15 with gas outlet 113, catalyst and be connected,
As such, it is possible to use predetermined gas d with from gas outlet 113 expellant gas b carry out heat exchange,
And make the water vapor condensation in the gas after heat exchange be water and enter device 15 again by catalyst
Enter in rotating cylinder 11.In a word, those skilled in the art can the most rationally set
Putting, this is not construed as limiting by the embodiment of the present invention.
It addition, kind, the concentration of aqueous catalyst solution in the embodiment of the present invention, to catalyst
Being not construed as limiting, those skilled in the art can be specifically chosen according to practical situation, such as catalyst
Kind can be alkali metal (such as K, Na), alkaline-earth metal (such as Ca) and Ferrious material (Fe,
The catalyst such as Ni).
In the embodiment of the present invention, rotating cylinder 11 can be the rotating cylinder of any shape, as long as
It can rotate around self center of rotation axle, have certain capacity, it is possible to carries out coal at it
Pretreatment, catalyst load and be dried, this is not especially limited by the present invention, than
As being cylindrical rotating cylinder, oval rotating cylinder or be as shown in Figure 1 or 2
Two ends are hemispheric cylindrical rotating cylinder.
A feed inlet and outlet 111 can be provided only with on rotating cylinder 11, for charging and discharge,
A charging aperture and a discharging opening can also be set respectively, in a word, as long as ensureing that coal can enter
Rotating cylinder 11 and the dried coal being loaded with catalyst can leave rotating cylinder 11 i.e.
Can；It addition, the present invention for feed inlet and outlet 111 shape, size and it is at revolving drum
Position on body 11 is not construed as limiting, as long as the effect of charging and discharge, this area can be played
Technical staff can be specifically chosen according to practical situation, is such as half at two ends as shown in Figure 1
On spherical cylindrical rotating cylinder, on the sidewall of hemispherical one end, right side, arrange one
The feed inlet and outlet of 0.3m × 0.3m rectangle.
The raw material preparation facilities that the embodiment of the present invention provides, after coal enters rotating cylinder, revolving drum
Body persistently rotates around self center of rotation axle, and coal then moves along with rotating cylinder；Temperature is
The gas of 120 DEG C～400 DEG C is by least on the center of rotation axle that is located in rotating cylinder
Conduit is passed through in rotating cylinder, and by several pores arranged axially, radially on conduit
Diffuse to outside conduit rapidly, and be evenly distributed in whole rotating cylinder, fully to connect with coal
Touch, and utilize the temperature of self that coal is carried out pretreatment；Aqueous catalyst solution is by being located at revolution
At least one nozzle on cylinder lateral wall sprays in rotating cylinder, and with press close to rotating cylinder inwall
Coal be fully contacted mixing chemically and/or physics mode is fully combined, uniformly with coal
Be supported on coal；Wet coal is carried out under the effect of the gas that the temperature being passed through is 120 DEG C～400 DEG C
It is dried, by adjusting drying time, by the water content control of coal 10% or less than 5%.
When the steam adsorbed in the hole of the dried coal being loaded with catalyst is less, can
Gasification furnace is entered with the raw material directly as coal catalytic gasification technique；When dried being loaded with is urged
When the steam that adsorbed in the hole of the coal of agent is more, can will discharge from rotating cylinder
The dried coal being loaded with catalyst is emitted into steam displacement apparatus, and then use temperature is
140 DEG C～the air of 280 DEG C or nitrogen will be inhaled in the hole of the dried coal being loaded with catalyst
Attached steam displaces, and the raw material being re-used as coal catalytic gasification technique after displacement enters gasification furnace.
Temperature is during the gas of 120 DEG C～400 DEG C is passed through, the gas that revolving drum body temperature is relatively low
Body or steam or portion temperature are that the gas of 120 DEG C～400 DEG C can be discharged back by gas outlet
Drum body, to ensure the balance of revolving drum body temperature and pressure.Discharge in rotating cylinder
Gas carries out heat exchange by heat exchanger with air or nitrogen, so that these air or nitrogen temperature
To 140 DEG C～280 DEG C, i.e. temperature used in steam displacement apparatus is 140 DEG C～the sky of 280 DEG C
Gas or nitrogen；And expellant gas will be lowered the temperature in rotating cylinder, the steam wherein contained will
It is condensed into water and is mixed into aqueous catalyst solution with catalyst and is again introduced into rotating cylinder.
The embodiment of the present invention provide raw material preparation facilities, the pretreatment of coal, the load of catalyst,
And being dried of wet coal is all carried out in rotating cylinder, whole technological process is simple, equipment needed thereby
Simple to operation, whole technical process only need to be passed through predetermined temperature gas, energy consumption is relatively low.And
And, the embodiment of the present invention provide raw material preparation facilities, will from rotating cylinder expellant gas
In the heat that carries and water circulation use, by the granule of the dried coal being loaded with catalyst
The steam adsorbed in hole recycles, it is achieved that the most effectively utilizing of the energy, not only subtracts
Lack cost of investment, also reduce environmental pollution.Further, owing to coal has been carried out pretreatment,
Effectively improve the characteristic of coal, reduce coal expansion in initial devolatilization process, increase
Big bed density, thus add bed body treating capacity, and bed caking can also be reduced, also
The effective homogeneous load of catalyst can be increased thus increase catalytic performance.
On the other hand, present invention also offers a kind of method for preparing raw material, employ the present invention real
Execute any raw material preparation facilities that example provides, including:
S1, by gas enter device predetermined temperature gas is passed through described rotating cylinder so that
Coal carries out pretreatment；
S2, the gas in described rotating cylinder is made to discharge by gas outlet；
S3, by catalyst enter device make aqueous catalyst solution enter described rotating cylinder, with
Catalyst is made to load on described coal；
S4, the coal being loaded with catalyst are dried under described predetermined temperature gas effect；
S5, the dried coal being loaded with catalyst is made to leave described revolving drum by feed inlet and outlet
Body.
It should be understood that above-mentioned steps can sequentially be carried out, it is also possible to not exclusively order is carried out,
Such as, step S1 can carry out with step S2 simultaneously or enter with step S2 and S3 simultaneously
OK.
Specifically, predetermined temperature gas is led to by gas entrance device described in above-mentioned steps S1
Enter described rotating cylinder to specifically include:
S11, by being located on the center of rotation axle in described rotating cylinder or be located at described returning
Predetermined temperature gas is passed through described rotating cylinder by least conduit in drum body, described pre-
Fixed temperature gas is evenly distributed on whole institute by several holes axially disposed on every conduit
State in rotating cylinder；And/or
S12, make predetermined temperature gas by least one nozzle being located on described rotating cylinder sidewall
Body is passed through described rotating cylinder.
Being made described in aqueous catalyst solution entrance by catalyst entrance device described in above-mentioned steps S3
Rotating cylinder specifically includes:
S31, by being located on the center of rotation axle in described rotating cylinder or be located at described returning
Aqueous catalyst solution is passed through described rotating cylinder by least conduit in drum body, described in urge
Agent aqueous solution is dispersed in described revolving drum by several holes axially disposed on every conduit
Internal；And/or
S32, make catalyst water-soluble by least one nozzle being located on described rotating cylinder sidewall
Liquid sprays into described rotating cylinder.
Preferably, dried being loaded with is made by described feed inlet and outlet described in above-mentioned steps S5
After the coal of catalyst leaves described rotating cylinder, described method also includes:
S6, the described dried coal being loaded with catalyst is emitted in steam displacement apparatus；
S7, the steam of the described dried coal absorption being loaded with catalyst is displaced；
Or, after step S7, described method can also include:
S8, make described steam by described gas enter device be again introduced into described rotating cylinder.
Alternatively, the gas made by gas outlet in described rotating cylinder described in above-mentioned steps S2
After discharge, described method also includes:
S2-1, in heat exchanger, use predetermined gas enter with from described gas outlet expellant gas
Row heat exchange, and make the described predetermined gas after heat exchange enter described steam displacement apparatus；Or
S2-2, in heat exchanger, use predetermined gas enter with from described gas outlet expellant gas
Row heat exchange, and make the described predetermined gas after heat exchange enter described steam displacement apparatus, make heat exchange
After described gas in water vapor condensation be water to be mixed into described catalyst water-soluble with catalyst
Liquid is also again introduced into described rotating cylinder by described catalyst entrance device.
Alternatively, the temperature of described predetermined temperature gas is 120 DEG C～400 DEG C.
Alternatively, described predetermined temperature gas is superheated steam, or superheated steam and air, nitrogen
The mixture of any one or more in gas, argon, helium.
The method for preparing raw material that the embodiment of the present invention provides, mainly includes rotating cylinder, and coal passes through
Feed inlet and outlet enters rotating cylinder, then makes rotating cylinder persistently revolve around self center of rotation axle
Turning, coal then moves along with rotating cylinder；Predetermined temperature gas enters device by gas and is passed through back
In drum body, the coal constantly moved with rotating cylinder and the predetermined temperature gas with uniform temperature
Body is fully contacted, thus effectively carries out pretreatment；Gas in rotating cylinder passes through gas outlet
Discharge, thus ensure that rotating cylinder can be held and temperature, pressure are maintained constant level, so,
It is effectively guaranteed effectively carrying out of pretreatment；After preprocessing process terminates, aqueous catalyst solution
Enter device by catalyst and enter rotating cylinder, ground pretreatment of constantly moving with rotating cylinder
After coal be fully contacted with catalyst and mix and chemically and/or physics mode and catalyst
Fully combine, so that catalyst is supported on coal equably；Further, owing to being passed through predetermined temperature
Gas, thus wet coal mixed with aqueous catalyst solution is gradually dried, and is dried with formation
It is loaded with the coal of catalyst, thus obtains the raw material for catalytic coal gasifaction, and by turnover
Material mouth is discharged.It is to say, in the embodiment of the present invention, the pretreatment of coal, the load of catalyst,
And being dried of wet coal is all carried out in rotating cylinder, whole technological process is simple, equipment needed thereby
Simple to operation, and, whole technical process only need to be passed through predetermined temperature gas, energy consumption is relatively
Low.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is also
Being not limited to this, any those familiar with the art is at the technology model that the invention discloses
In enclosing, change can be readily occurred in or replace, all should contain within protection scope of the present invention.
Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (9)
1. a raw material preparation facilities, it is characterised in that including:
Being provided with the rotating cylinder of feed inlet and outlet and gas outlet, pretreatment, catalyst for coal exist
Load on described coal and be loaded with being dried of coal of catalyst；
Gas enters device, enters institute for the predetermined temperature gas making temperature be 150 DEG C～300 DEG C
State rotating cylinder so that described predetermined temperature gas and coal or abundant with the coal being loaded with catalyst
Contact；Wherein, described predetermined temperature gas is superheated steam, or, described predetermined temperature gas
Body is superheated steam and the mixture of any one or more in nitrogen, argon, helium；
Catalyst enters device, is used for making aqueous catalyst solution enter described rotating cylinder, described
Catalyst enters at least one nozzle that device includes being located on described rotating cylinder sidewall.
Raw material preparation facilities the most according to claim 1, it is characterised in that described gas
Enter device include on the center of rotation axle being located in described rotating cylinder or be located at described returning
At least conduit in drum body, every conduit is provided with several holes vertically；And/or
Described gas enters at least one spray that device includes being located on described rotating cylinder sidewall
Mouth.
Raw material preparation facilities the most according to claim 1, it is characterised in that also include with
The steam displacement apparatus that described feed inlet and outlet is connected, for being catalyzed described dried being loaded with
The steam of the coal absorption of agent displaces；Or
Also include entering respectively the steam displacement that device is connected with described feed inlet and outlet, described gas
Device, for the steam of the described dried coal absorption being loaded with catalyst is displaced and
Described steam is made to be again introduced into described rotating cylinder.
Raw material preparation facilities the most according to claim 3, it is characterised in that also include changing
Hot device, is used for making predetermined gas and carrying out heat exchange from described gas outlet expellant gas.
5. prepared by the raw material of the raw material preparation facilities used described in any one of claim 1～4
Method, it is characterised in that including:
Enter device by gas and the predetermined temperature gas that temperature is 150 DEG C～300 DEG C is passed through institute
State rotating cylinder, so that coal and predetermined temperature gas are fully contacted to carry out pretreatment, wherein,
Described predetermined temperature gas is superheated steam, or, described predetermined temperature gas is superheated steam
With the mixture of any one or more in nitrogen, argon, helium；
The gas in described rotating cylinder is made to discharge by gas outlet；
Entering device by catalyst makes aqueous catalyst solution enter described rotating cylinder, so that urging
Agent loads on described coal, and wherein, described catalyst enters device and includes being located at described
At least one nozzle on rotating cylinder sidewall；
The coal being loaded with catalyst is fully contacted with described predetermined temperature gas with at described pre-constant temperature
It is dried under degree gas effect；
The dried coal being loaded with catalyst is made to leave described rotating cylinder by feed inlet and outlet.
Method for preparing raw material the most according to claim 5, it is characterised in that described in pass through
Predetermined temperature gas is passed through described rotating cylinder and specifically includes by gas entrance device:
By being located on the center of rotation axle in described rotating cylinder or being located at described revolving drum
Predetermined temperature gas is passed through described rotating cylinder, described pre-constant temperature by least internal conduit
Spend gas by several pore size distributions axially disposed on every conduit at whole described revolving drum
Internal；And/or
Predetermined temperature gas is made to lead to by least one nozzle being located on described rotating cylinder sidewall
Enter described rotating cylinder.
Method for preparing raw material the most according to claim 5, it is characterised in that described in pass through
After described feed inlet and outlet makes the dried coal being loaded with catalyst leave described rotating cylinder,
Described method also includes:
The described dried coal being loaded with catalyst is emitted in steam displacement apparatus；
The steam of the described dried coal absorption being loaded with catalyst is displaced；Or
The described dried coal being loaded with catalyst is emitted in steam displacement apparatus；
The steam of the described dried coal absorption being loaded with catalyst is displaced；
Make described steam enter device by described gas and be again introduced into described rotating cylinder.
Method for preparing raw material the most according to claim 5, it is characterised in that described in pass through
After gas outlet makes the gas in described rotating cylinder discharge, described method also includes:
In heat exchanger, use predetermined gas and carry out heat exchange from described gas outlet expellant gas.
Method for preparing raw material the most according to claim 8, it is characterised in that described predetermined
Gas is at least one in nitrogen, argon, helium.
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| CN107418633B (en) * | 2017-07-19 | 2020-10-27 | 新奥科技发展有限公司 | Nozzle, gasification furnace and catalytic gasification method |
| CN109453824B (en) * | 2018-11-15 | 2021-09-10 | 新奥科技发展有限公司 | Catalyst loading method and catalytic hydro-gasification method |
| CN113249144B (en) * | 2021-05-10 | 2022-06-10 | 广州环峰能源科技股份有限公司 | Biomass gasification system with high gasification rate |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4200439A (en) * | 1977-12-19 | 1980-04-29 | Exxon Research & Engineering Co. | Gasification process using ion-exchanged coal |
| IT1197477B (en) * | 1986-09-10 | 1988-11-30 | Eniricerche Spa | PROCESS TO OBTAIN A HIGH METHANE CONTENT GASEOUS MIXTURE FROM COAL |
| GB9822123D0 (en) * | 1998-10-09 | 1998-12-02 | Borealis As | Catalyst |
| CN1288226C (en) * | 2004-04-29 | 2006-12-06 | 福州大学 | Low activity dust coal catalytic gasifying method |
| BE1016382A3 (en) * | 2004-12-15 | 2006-10-03 | Broqueville Axel De | Fluid injection device within a rotating fluidized bed. |
| AU2008282518B2 (en) * | 2007-08-02 | 2012-03-01 | Greatpoint Energy, Inc. | Catalyst-loaded coal compositions, methods of making and use |
| WO2009111335A2 (en) * | 2008-02-29 | 2009-09-11 | Greatpoint Energy, Inc. | Coal compositions for catalytic gasification |
| EP2370549A1 (en) * | 2008-12-30 | 2011-10-05 | Greatpoint Energy, Inc. | Processes for preparing a catalyzed coal particulate |
| CN101831314B (en) * | 2009-03-12 | 2013-08-07 | 天华化工机械及自动化研究设计院有限公司 | Method for humidifying and drying coking coal in coke oven and equipment therefor |
| CN102417822A (en) * | 2011-10-17 | 2012-04-18 | 西安三瑞实业有限公司 | Method for performing solid heat carrier pyrolysis on coal by using self-return revolving furnace |
| CN202343206U (en) * | 2011-10-31 | 2012-07-25 | 江苏佳誉信实业有限公司 | Rotary type catalyst impregnator |
| CN103509603B (en) * | 2012-06-28 | 2015-06-10 | 新奥科技发展有限公司 | Preparation method of raw material for coal catalytic gasification technique |
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