CN106390681A - Double-fluidized bed adsorption and desorption device and method for continuous treatment of organic waste gas - Google Patents
Double-fluidized bed adsorption and desorption device and method for continuous treatment of organic waste gas Download PDFInfo
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- CN106390681A CN106390681A CN201611029965.9A CN201611029965A CN106390681A CN 106390681 A CN106390681 A CN 106390681A CN 201611029965 A CN201611029965 A CN 201611029965A CN 106390681 A CN106390681 A CN 106390681A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
- B01D53/12—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/40092—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot liquid
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- Treating Waste Gases (AREA)
Abstract
The invention relates to the field of organic waste gas treatment and resource utilization and particularly relates to a double-fluidized bed adsorption and desorption device and a method for continuous treatment of organic waste gas. The device provided by the invention comprises a fluidized bed adsorption device (1), a preheater (5) and a fluidized bed desorption device (6), wherein an adsorbent outlet at the bottom of the fluidized bed adsorption device (1) is connected with a feed port of the preheater (5); a discharge port of the preheater (5) is connected with a feed port of the fluidized bed desorption device (6); and a solid outlet of the fluidized bed desorption device (6) is connected with a solid inlet of the fluidized bed adsorption device (1). In the invention, continuous treatment of high-concentration organic waste gas can be realized, heat accumulation can be prevented, and the problems such as bed fire and explosion caused by the dissipation failure of the reaction heat due to the excessively high concentration of the high-concentration organic waste gas are avoided; and moreover, the desorption effect of the adsorbent and the exit concentration of concentrated VOC gas are improved, and the catalytic combustion or solvent recycling is facilitated.
Description
Technical field
The present invention relates to VOCs treatment and recycling field, specifically, it is related to a kind of double-fluidized-bed absorption
Method with desorption apparatus and continuous processing organic exhaust gas.
Background technology
Volatile organic waste gas (VOCs) cause great harm to environment, vegeto-animal growth and human health, because
This is increasingly paid attention to by countries in the world, and many developed countries have all promulgated corresponding decree, limits the discharge of VOCs.Mesh
Before, for the process of organic exhaust gas, typically adopt ADSORPTION IN A FIXED BED system, be made up of two towers or multitower, carry out respectively adsorbing with
The intermittently operated of desorption.Because the method takes intermittently operated, need to switch between multiple fixed-bed adsorbers, operation is numerous
Trivial；And the higher waste gas of organic concentration can not be processed well.In order to improve the shortcoming of ADSORPTION IN A FIXED BED system, progressively develop
Go out a kind of multicompartment fluidized bed adsorption system.Patent application CN104190208A provides a kind of recirculating fluidized bed and processes organic exhaust gas
Method, its deficiency is to operate air speed excessive, and power consumption is too high, is difficult to realize industrialization.Patent application CN104740973A introduces
The retracting device of organic solvent in a kind of high-concentration organic waste gas, its shortcoming is to be provided with outside its multicompartment fluidized bed multiple
Overflow pipe, with the flowing of control material, leads to its complex operation, and economic benefit is low.In the fluidised bed adsorption system proposing at present,
In the desorption of attachment solvent and the regenerative process of adsorbing material, adopt moving bed more.But, it is desorbed using moving bed
Major defect is that equipment needed thereby is bulky, and adsorbent amount is many, thus causing investment high；And, moving bed heat transfer is poor,
Easily cause temperature skewness in desorption apparatus, lead to desorption apparatus local temperature too high, thus bringing the safety caught fire to ask
Topic.In sum, the fluidised bed adsorption-desorption system of exploitation at present has a certain degree of improvement, but in structure and use
On obviously yet suffer from many inconvenience and defect.
Content of the invention
It is an object of the invention to, in order to solve problems present in the above-mentioned process in VOCs treatment, propose
A kind of method of double-fluidized-bed absorption and desorption apparatus and continuous processing organic exhaust gas.The present invention is not only suitable for low concentration, and
It is applied to high-concentration organic waste gas, increase the concentration range of pending raw material；And, simple to operate, easily realize industrialization.
The concrete technical scheme of the present invention is as follows：
The double-fluidized-bed absorption of the present invention and desorption apparatus, including fluidised bed adsorption device 1, for being adsorbed using adsorbent
Pending organic exhaust gas；
Preheater 5, for carrying out the pre-heat treatment to the adsorbent adhering to organic gas entering in fluidized bed desorption apparatus；
And, fluid bed desorption apparatus 6, for being desorbed to the organic gas being attached on adsorbent, make adsorbent
Regeneration, and incendivity process or recovery organic gas；
Wherein, the adsorbent outlet of fluidised bed adsorption device 1 bottom is connected with the feeding mouth of preheater 5, described preheating
The discharging opening of device 5 is connected with the feeding mouth of fluid bed desorption apparatus 6；The solid outlet of described fluid bed desorption apparatus 6 and stream
The feeding-in solid body mouth changing bed adsorbent equipment 1 is connected.
As one kind improvement of such scheme of the present invention, wherein, described device also includes discharging separator 2, in the future
Deliver into feed bin 4 from the adsorbent of the attachment organic gas in fluidised bed adsorption device 1 bottom；Fed separator 3 is by again
Raw adsorbent sends into fluidised bed adsorption device 1, to reuse adsorbent；Feed bin 4, for storage from discharging separator 2
It is attached with the adsorbent of gas；Discharging air conveyor 7, under the carrier gas effect being passed through by bottom, will come from adsorbent equipment 1
Attachment organic gas adsorbent send into discharging separator 2；Charging air conveyor 8, in the carrier gas effect being passed through by bottom
Under, send coming from the adsorbent after fluid bed desorption apparatus 6 regenerate into fed separator 3；
Wherein, the adsorbent outlet of described fluidised bed adsorption device 1 bottom is divided by discharging air conveyor 7 and discharging
It is connected from device 2 feeding mouth；Described discharging separator 2 discharging opening is connected with the feeding mouth of feed bin 4；The discharging opening of described feed bin 4 with
The feeding mouth of preheater 5 is connected；
The discharging opening of described fluid bed desorption apparatus 6 passes through to feed air conveyor 8 and fed separator 3 feeding mouth phase
Even, the discharging opening of described fed separator 3 is connected with the feeding-in solid body mouth of fluidised bed adsorption device 1.
The method of the continuous processing organic exhaust gas based on said apparatus of the present invention, comprises the following steps：
A) organic exhaust gas enter from fluidised bed adsorption device 1 bottom, are placed in the adsorbent absorption in fluid bed；It is attached with
The adsorbent of machine waste gas is discharged from adsorbent equipment 1 bottom, after preheater 5 preheats, enters fluidized bed desorption apparatus 6；
B) be desorbed after organic exhaust gas be passed through by fluid bed desorption apparatus 6 bottom purge gass effect under, from fluid bed
Desorption apparatus top is discharged, and collects through subsequent condensation, and obtains the adsorbent regenerating；Adsorbent after regeneration takes off from fluid bed
Adsorption device bottom discharge mouth is discharged, and is admitted to fluidised bed adsorption device 1 to reuse.
Further, the method based on the continuous processing organic exhaust gas of device after above-mentioned improvement for the present invention, walks including following
Suddenly：
1) organic exhaust gas enter from fluidised bed adsorption device 1 bottom, are placed in the adsorbent absorption in fluid bed；It is attached with
The adsorbent of machine waste gas is discharged from fluidised bed adsorption device 1 bottom, and makees in the carrier gas being passed through by discharging air conveyor 7 bottom
With under, be brought into discharging separator 2；Under discharging separator 2 effect, the adsorbent of attachment organic gas is sent into feed bin 4；
2), after the adsorbent of the attachment organic exhaust gas discharged by bin bottom is preheated by preheater 5, discharge from bottom, and
Enter fluidized bed desorption apparatus 6；
3) organic exhaust gas after being desorbed, under the purge gass effect being passed through by fluid bed desorption apparatus 6 bottom, fill from desorption
Put top to discharge, collect through subsequent condensation, and obtain the adsorbent regenerating；Adsorbent after regeneration is arranged from desorption apparatus bottom
Go out, then under the carrier gas effect being passed through by charging air conveyor 8 bottom, be brought into fed separator 3；Make in fed separator 3
With under, reproducing adsorbent be admitted to fluidised bed adsorption device 1 with reuse；After purifying the most at last up to standard can discharge gas from
Gas outlet 9 discharges.The method according to the invention, wherein, described carrier gas is air or nitrogen.
According to the present invention, wherein, it is transverse tube type preheater that described preheater 5 is preferably, and heating medium is passed through tube side, absorption
Agent is passed through shell side；It is further preferred that the section of heating tube is ellipse.The described heating medium being passed through preheater 5, preferably
One or more of superheated steam, conduction oil, heat smoke or hot-air.
The method according to the invention, wherein, described adsorbent is particulate material, preferably macromolecule resin, activated carbon
Or molecular sieve.
The method according to the invention, wherein, the temperature of preheater and fluid bed desorption apparatus is according to pending gas
Determine.Wherein, the selection of described desorption temperature is relevant with the boiling point of organic substance in pending waste gas.The present invention is applied to industry
The workshop such as japanning room and drying room in the improvement of low-concentration organic exhaust gas, such as Production Container industry, prints in printing industry, coating etc.
Workshop, contains harmful Organic substance such as benzene,toluene,xylene in organic exhaust gas.
It is an advantage of the current invention that：
1st, compared with traditional fixed-bed process, the present invention adopts fluidised bed adsorption-desorption apparatus continuous processing organic waste
The method of gas can achieve continuous operation, is applicable not only to the process of low-concentration organic exhaust gas, can be additionally used in processing high concentration simultaneously
Organic exhaust gas, process exhaust gas concentration wider range, and the organic gas of recovery can be reused；And, fluidized-bed reactor also has
There is the good advantage of heat and mass effect, heat localization can be prevented, it is to avoid the reaction that high-concentration organic waste gas cause because of excessive concentration
Heat cannot be scattered and disappeared the problems such as lead to bed to catch fire, explode.
2nd, first the adsorbent of the attachment organic gas entering fluidized bed desorption apparatus is carried out using preheater in the present invention
Preheating, makes absorbent particles uniformly heat, and improves the desorption effect of adsorbent and concentrates VOC gas outlet concentration, is conducive to
Catalysis burning or the carrying out of solvent recovery.
3rd, the present invention is the quick heating realizing adsorbent in preheater, has been specifically designed transverse tube type preheater.Preheating
Arrange multi-heating-pipe bundle in device, in operating process, in pipe, be passed through heating medium, heat medium horizontal mobility in pipe；Treat pre-
The sorbent particles of heat enter under gravity in pipe and flow from top to bottom, due to the heat conductivility of solid absorbent
Poor, design two rows heating tube is staggered, with promote adsorbent mixing and with being fully contacted of heating tube wall,
Thus improving the rate of heat addition of adsorbent, in addition, forming granule dead band up and down to reduce pipe, heating tube section is ellipse
Shape, strengthens the flowing of granule, improves the rate of heat addition of absorbent particles further.This mode not only increases holding of pipeline
Pressure energy power, but also expand be passed through in preheater heat medium scope, heating medium can be superheated steam, conduction oil,
Heat smoke, hot-air are it might even be possible to be the hot waste gas producing in technical process；Make full use of this partial heat, not only reduce
The growing amount of used heat, and improve the thermal efficiency of system.
4 present invention preferably uses air or nitrogen, as the carrier gas being passed through air conveyor sum, can substantially reduce useless
The yield of water.
Brief description
Fig. 1 is the simplified schematic diagram of the double-fluidized-bed absorption using the present invention and desorption apparatus continuous processing organic exhaust gas.
Fig. 2 is the schematic diagram of the double-fluidized-bed absorption using the present invention and desorption apparatus continuous processing organic exhaust gas.
Fig. 3 is preheater cross-sectional view.
Reference
1st, fluidised bed adsorption device 2, discharging separator 3, fed separator
4th, feed bin 5, preheater 6, fluid bed desorption apparatus
7th, discharging air conveyor 8, charging air conveyor 9, gas outlet
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the double-fluidized-bed absorption of the present invention and desorption apparatus, including fluidised bed adsorption device 1, preheater 5
And fluid bed desorption apparatus 6, wherein, the adsorbent outlet of fluidised bed adsorption device 1 bottom and the feeding mouth phase of preheater 5
Even, the discharging opening of described preheater 5 is connected with the feeding mouth of fluid bed desorption apparatus 6；The solid of described fluid bed desorption apparatus 6
Discharging opening is connected with the feeding-in solid body mouth of fluidised bed adsorption device 1.
As shown in Fig. 2 as one kind improvement of such scheme, wherein, described device also includes discharging separator 2, is used for
The adsorbent coming from the attachment organic gas of fluidised bed adsorption device 1 bottom is delivered into feed bin 4；Fed separator 3 is
Reproducing adsorbent is sent into fluidised bed adsorption device 1, to reuse adsorbent；Feed bin 4, is derived from discharging separator for storage
2 adsorbent being attached with gas；Discharging air conveyor 7, under the carrier gas effect being passed through by bottom, will come from absorption dress
The adsorbent putting 1 attachment organic gas sends into discharging separator 2；Charging air conveyor 8, makees in the carrier gas being passed through by bottom
With under, will come from the adsorbent after fluid bed desorption apparatus 6 regenerate send into fed separator 3；Wherein, described fluidised bed adsorption
The adsorbent outlet of device 1 bottom is connected with discharging separator 2 feeding mouth by discharging air conveyor 7；Described discharging divides
It is connected with the feeding mouth of feed bin 4 from device 2 discharging opening；The discharging opening of described feed bin 4 is connected with the feeding mouth of preheater 5；Described stream
The discharging opening changing bed desorption apparatus 6 is connected with fed separator 3 feeding mouth by feeding air conveyor 8, and described charging separates
The discharging opening of device 3 is connected with the feeding-in solid body mouth of fluidised bed adsorption device 1.
The method of the continuous processing organic exhaust gas based on said apparatus of the present invention, comprises the following steps：
A) organic exhaust gas enter from fluidised bed adsorption device 1 bottom, are placed in the adsorbent absorption in fluid bed；It is attached with
The adsorbent of machine waste gas is discharged from adsorbent equipment 1 bottom, after preheater 5 preheats, enters fluidized bed desorption apparatus 6；
B) be desorbed after organic exhaust gas be passed through by fluid bed desorption apparatus 6 bottom purge gass effect under, from fluid bed
Desorption apparatus top is discharged, and collects through subsequent condensation, and obtains the adsorbent regenerating；Adsorbent after regeneration takes off from fluid bed
Adsorption device bottom discharge mouth is discharged, and is admitted to fluidised bed adsorption device 1 to reuse.
Further, optimally, comprise the following steps：
Organic exhaust gas enter from fluidised bed adsorption device 1 bottom, are placed in the adsorbent absorption in fluid bed；Attachment is organic
The adsorbent of gas is discharged from fluidised bed adsorption device 1 bottom, and in the carrier gas effect being passed through by discharging air conveyor 7 bottom
Under, it is brought into discharging separator 2；In the presence of discharging separator 2, the adsorbent of attachment organic gas is sent into feed bin 4；By
The adsorbent of the attachment organic gas that bin bottom is discharged, after preheater 5 preheating, is discharged from bottom, enters fluidized bed desorption
Device 6；Organic gas after desorption, in the presence of the purge gass being passed through by desorption apparatus 6 bottom, is arranged from desorption apparatus top
Go out, can collect through subsequent condensation, and obtain the adsorbent regenerating；Adsorbent after regeneration is discharged from desorption apparatus bottom, then
Under the carrier gas effect being passed through by charging air conveyor 8 bottom, it is brought into fed separator 3；Effect in fed separator 3
Under, reproducing adsorbent is admitted to fluidised bed adsorption device 1 to reuse；After purifying the most at last up to standard can discharge gas from gas
Body outlet 9 discharge.
Preferably, as shown in figure 3, design two rows heating tube be staggered, with promote adsorbent mixing and
With being fully contacted of heating tube wall, thus improving the rate of heat addition of adsorbent, in addition, forming granule up and down to reduce pipe
Dead band, heating tube section is ellipse, strengthens the flowing of granule, improves the rate of heat addition of absorbent particles further.This
Mode not only increases the bearing capacity of pipeline, but also expands and be passed through the scope heating medium in preheater.
Embodiment 1 utilizes the spherical macromolecule resin adsorbent that certain company provides, and concentration for the treatment of is 214mg/m3Acetic acid second
The waste gas of ester
Waste gas is passed through from fluidised bed adsorption bottom of device, and tolerance is 30m3/ h, fluid bed inner member is three layers of column plate；Air
It is passed through by air conveyor bottom, the adsorbent carrying attachment ethyl acetate enters separator, then proceedes to be sent into by separator
Feed bin, and enter the preheater that temperature is 150 DEG C and preheated, enter temperature immediately and carry out for 150 DEG C of fluid bed desorption apparatus
Desorption, fluid bed inner member is five layers of column plate, and is passed through 8m in fluid bed desorption apparatus bottom3/ h purge gass, by the second of removing
Acetoacetic ester is taken out of, and can collect concentration for 2400mg/m3Concentrated gas, removing gas after adsorbent from bottom discharge and in sky
Gas carries down and enters separator by air conveyor, subsequently enters fluidised bed adsorption device and is reused.Experiment is continuous to transport
Row 4 hours, the blanking rate of adsorbent is 1.2kg/h, and after purification, the concentration of gas outlet ethyl acetate is 0, and adsorbent is to useless
In gas, the removal efficiency of ethyl acetate is 100%；Gas remnants about 1.0% in reproducing adsorbent, removal efficiency reaches 99.0%.
Embodiment 2 utilizes the spherical macromolecule resin adsorbent that certain company provides, and concentration for the treatment of is 1094mg/m3Adjacent diformazan
The waste gas of benzene
Waste gas is passed through from fluidised bed adsorption bottom of device, and tolerance is 30m3/ h, fluid bed inner member is three layers of column plate；Nitrogen
It is passed through by air conveyor bottom, the adsorbent carrying attachment o-Dimethylbenzene enters separator, then proceedes to be sent into by separator
Feed bin, and enter the preheater that temperature is 170 DEG C and preheated, enter temperature immediately and carry out for 170 DEG C of fluid bed desorption apparatus
Desorption, fluid bed inner member is five layers of column plate, and is passed through 8m in fluid bed desorption apparatus bottom3/ h purge gass, by the neighbour of removing
Dimethylbenzene is taken out of, and collects concentration for 2500mg/m3Concentrated gas, removing gas after adsorbent from bottom discharge and in nitrogen
Carry down and separator is entered by air conveyor, subsequently enter fluidised bed adsorption device and be reused.Experiment is continuous to run 6
Hour, the blanking rate of adsorbent is 1.2kg/h, and after purification, the concentration of gas outlet o-Dimethylbenzene is 0.5mg/m3, adsorbent
Removal efficiency to o-Dimethylbenzene in waste gas is 99.9%；Gas remnants about 1.8% in reproducing adsorbent, removal efficiency reaches
98.5%.
Embodiment 3 utilizes the spherical macromolecule resin adsorbent that certain company provides, and processes the big of furniture paint industry generation
Tolerance, low concentration, and contain acetone, ethyl acetate and dimethylbenzene total concentration are 320mg/m3Waste gas
Waste gas is passed through from fluidised bed adsorption bottom of device, and tolerance is 20000m3/ h, fluid bed inner member is three layers of column plate,
Control adsorbent blanking rate to be 240kg/h simultaneously；Air is passed through by air conveyor bottom, carries the absorption of attachment mixed gas
Agent enters separator, then proceedes to be sent into feed bin by separator, and enters the preheater that temperature is 170 DEG C and is preheated, immediately
Enter temperature to be desorbed for 170 DEG C of fluid bed desorption apparatus, fluid bed inner member is five layers of column plate, and is desorbed dress in fluid bed
Bottom set portion is passed through 1200m3/ h purge gass, the mixed gas of removing are taken out of, and collect concentration for 5400mg/m3Concentrated gas, dense
Contracting ratio reaches 17；Adsorbent after removing gas is discharged from bottom and is entered separator by air conveyor air carries,
Subsequently enter fluidised bed adsorption device to be reused.After final purification, gas outlet organic vapor concentrations are 1mg/m3, take off
Except rate is 99.7%.
Non-elaborated part of the present invention belongs to techniques well known.
It should be noted last that, above example is only in order to illustrate technical scheme and unrestricted.Although ginseng
According to embodiment, the present invention is described in detail, it will be understood by those within the art that, the technical side to the present invention
Case is modified or equivalent, and without departure from the spirit and scope of technical solution of the present invention, it all should be covered in the present invention
Right in the middle of.
Claims (9)
1. a kind of double-fluidized-bed absorption includes fluidised bed adsorption device (1) with desorption apparatus it is characterised in that described device, in advance
Hot device (5), and fluid bed desorption apparatus (6)；
Wherein, the adsorbent outlet of fluidised bed adsorption device (1) bottom is connected with the feeding mouth of preheater (5), described preheating
The discharging opening of device (5) is connected with the feeding mouth of fluid bed desorption apparatus (6)；The solids exit of described fluid bed desorption apparatus (6)
Mouth is connected with the feeding-in solid body mouth of fluidised bed adsorption device (1).
2. device according to claim 1 is it is characterised in that described device also includes discharging separator (2), charging separates
Device (3), feed bin (4), discharging air conveyor (7) and charging air conveyor (8)；
Wherein, the adsorbent outlet of described fluidised bed adsorption device (1) bottom is divided with discharging by discharging air conveyor (7)
It is connected from device (2) feeding mouth；Described discharging separator (2) discharging opening is connected with the feeding mouth of feed bin (4)；Described feed bin (4)
Discharging opening is connected with the feeding mouth of preheater (5)；
The discharging opening of described fluid bed desorption apparatus (6) passes through to feed air conveyor (8) and fed separator (3) feeding mouth phase
Even, the discharging opening of described fed separator (3) is connected with the feeding-in solid body mouth of fluidised bed adsorption device (1).
3. device according to claim 1 and 2 is it is characterised in that described preheater (5) is transverse tube type preheater.
4. device according to claim 3 is it is characterised in that the section of described heating tube is ellipse.
5. a kind of method of the continuous processing organic exhaust gas based on claim 1 described device, comprises the following steps：
A) organic exhaust gas enter from fluidised bed adsorption device (1) bottom, are placed in the adsorbent absorption in fluid bed；Attachment is organic
The adsorbent of waste gas is discharged from adsorbent equipment (1) bottom, after preheater (5) preheats, enters fluidized bed desorption apparatus (6)；
B) organic exhaust gas after being desorbed, under the purge gass effect being passed through by fluid bed desorption apparatus (6) bottom, take off from fluid bed
Adsorption device top is discharged, and collects through subsequent condensation, and obtains the adsorbent regenerating；Adsorbent after regeneration is desorbed from fluid bed
Bottom of device discharging opening is discharged, and is admitted to fluidised bed adsorption device (1) to reuse.
6. a kind of method of the continuous processing organic exhaust gas based on claim 2 described device, comprises the following steps：
1) organic exhaust gas enter from fluidised bed adsorption device (1) bottom, are placed in the adsorbent absorption in fluid bed；Attachment is organic
The adsorbent of waste gas is discharged from adsorbent equipment (1) bottom, and in the carrier gas effect being passed through by discharging air conveyor (7) bottom
Under, it is brought into discharging separator (2)；Under discharging separator (2) effect, the adsorbent of attachment organic gas is sent into feed bin
(4)；
2) adsorbent of the attachment organic exhaust gas discharged by bin bottom, after preheater (5) preheating, is discharged from bottom, is gone forward side by side
Fluidized bed desorption apparatus (6)；
3) organic exhaust gas after being desorbed, under the purge gass effect being passed through by desorption apparatus (6) bottom, are arranged from desorption apparatus top
Go out, collect through subsequent condensation, and obtain the adsorbent regenerating；Adsorbent after regeneration is discharged from desorption apparatus bottom, then by
Under the carrier gas effect that charging air conveyor (8) bottom is passed through, it is brought into fed separator (3)；In fed separator (3) effect
Under, reproducing adsorbent is admitted to adsorbent equipment (1) to reuse.
7. method according to claim 6 is it is characterised in that described carrier gas is air or nitrogen.
8. the method according to claim 5 or 6, it is characterised in that described preheater (5) is transverse tube type preheater, heats
Medium is passed through tube side, and adsorbent is passed through shell side；The described heating medium being passed through preheater (5), is superheated steam, conduction oil, heat
One or more of flue gas or hot-air.
9. the method according to claim 5 or 6 is it is characterised in that described adsorbent is granular macromolecule resin, work
Property charcoal or molecular sieve.
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| CN201611029965.9A CN106390681A (en) | 2016-11-15 | 2016-11-15 | Double-fluidized bed adsorption and desorption device and method for continuous treatment of organic waste gas |
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| CN201611029965.9A CN106390681A (en) | 2016-11-15 | 2016-11-15 | Double-fluidized bed adsorption and desorption device and method for continuous treatment of organic waste gas |
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| CN110078164A (en) * | 2019-05-06 | 2019-08-02 | 东北石油大学 | Two-stage tandem fluidized bed oil water separator |
| CN110898613A (en) * | 2019-12-16 | 2020-03-24 | 山东科技大学 | Device and method for treating waste gas containing low-concentration volatile organic compounds |
| CN111228963A (en) * | 2020-01-19 | 2020-06-05 | 江苏环保产业技术研究院股份公司 | Efficient catalytic oxidation system based on absorption and desorption coupling of double-circulating fluidized bed |
| CN111229026A (en) * | 2020-02-11 | 2020-06-05 | 清华大学 | Device and method for efficiently converting volatile organic compounds |
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| CN111228963A (en) * | 2020-01-19 | 2020-06-05 | 江苏环保产业技术研究院股份公司 | Efficient catalytic oxidation system based on absorption and desorption coupling of double-circulating fluidized bed |
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| CN112370934A (en) * | 2020-10-28 | 2021-02-19 | 江苏安琪尔废气净化有限公司 | Organic waste gas activated carbon concentration coupling RTO mineralization system and process |
| CN112843988A (en) * | 2020-12-30 | 2021-05-28 | 江苏安琪尔废气净化有限公司 | High-efficiency VOCs (volatile organic compounds) treatment system and method based on coupling of fluidized bed adsorption and fluidized bed desorption |
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