CN109012014A - A kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery - Google Patents
A kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery Download PDFInfo
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- CN109012014A CN109012014A CN201810649064.2A CN201810649064A CN109012014A CN 109012014 A CN109012014 A CN 109012014A CN 201810649064 A CN201810649064 A CN 201810649064A CN 109012014 A CN109012014 A CN 109012014A
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- exhaust gas
- active
- carbon adsorption
- desorption
- gas
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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
- B01D53/04—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 stationary adsorbents
-
- 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
- B01D53/002—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 condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- 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
Abstract
The invention discloses a kind of method and devices of exhaust gas active-carbon adsorption desorption condensing recovery, it is introduced into the activated carbon adsorption device with multiple independent adsorption areas the described method includes: exhaust gas will be produced by blower, it is discharged into environment after activated carbon adsorption, the active carbon of adsorption saturation in activated carbon adsorption device from being transferred in active carbon desorption apparatus, exhaust gas is desorbed from active carbon by thermal medium, active carbon after desorption reinstalls in activated carbon adsorption device, exhaust gas enters cooling in condenser, recycling；The method high-efficiency environment friendly, operating cost are low；Described device includes the first blower, the activated carbon adsorption device being connect by tee tube with the first blower, mobile active carbon desorption apparatus and condenser, the air inlet of the condenser is connect by pipeline with the venthole of active carbon desorption apparatus, and exhaust outlet is connected on the tee tube connected between blower and activated carbon adsorption device；The apparatus structure is simple, stable, adapts to the demand of different enterprises.
Description
Technical field
The present invention relates to waste gas recovery processing and device field, in particular to a kind of exhaust gas active-carbon adsorption desorption condensing recoveries
Method and device.
Background technique
Current exhaust gas pollution becomes increasingly conspicuous, and the discharge for controlling exhaust gas is one of vital task of environmental improvement.Active carbon pair
Volatile organic waste gas has preferable suction-operated, but there are certain replacement cycles for activated carbon adsorption, after adsorption saturation
The volatile organic waste gas in removing exhaust gas cannot be removed, is needed replacing, therefore, the regeneration of active carbon has important economy and society
Meaning；Current activated carbon adsorption device generally requires halt production when replacing active carbon, causes biggish economic damage to manufacturing enterprise
It loses.
The desorption mode after active carbon saturation is mostly that steam desorption gives up with what heated nitrogen made to adsorb on active carbon at present
The attached mode of qi exhaustion, mixed liquor of the mode of vapor desorption after the condensing recovery stage can generate condensate liquid and waste gas condensation,
It could be discharged after the processing of this mixed liquor needs, belong to secondary pollution；The exhaust gas adsorbed on active carbon is desorbed by heated nitrogen
Mode higher cost, preparing nitrogen, energy consumption is high, does not meet the economic interests of enterprise.
As it can be seen that the prior art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of exhaust gas active-carbon adsorption desorption is cold
The method and device of solidifying recycling, it is intended to which the method that solution handles exhaust gas by active carbon adsorption desorption in the prior art is at high cost, holds
The problem of easily causing secondary pollution.
In order to achieve the above object, this invention takes following technical schemes:
A kind of method of exhaust gas active-carbon adsorption desorption condensing recovery, comprising:
S001., the exhaust gas generated in production process is introduced to the activated carbon adsorption device with multiple independent adsorption areas by blower
In, exhaust gas is discharged into environment after activated carbon adsorption, and the active carbon of adsorption saturation is transferred to work from activated carbon adsorption device
In property charcoal desorption apparatus；
S002. exhaust gas is desorbed from active carbon by thermal medium in active carbon desorption apparatus, the active carbon after desorption is pacified again
It is attached in activated carbon adsorption device；
S003. the exhaust gas after being desorbed enters cooling in condenser, recycling.
In the method for the exhaust gas active-carbon adsorption desorption condensing recovery, lead in active carbon desorption apparatus in the step S002
Exhaust gas in overfire air Detachment Activity charcoal.
In the method for the exhaust gas active-carbon adsorption desorption condensing recovery, air heats up by heat exchanger in the step S002
It by air heater is heated to that the active carbon of adsorption saturation is desorbed after operating temperature again afterwards.
In the method for the exhaust gas active-carbon adsorption desorption condensing recovery, in the step S002 after heat exchanger heats up
Air enters the flow in active carbon desorption apparatus by the control of air flow control valve.
In the method for the exhaust gas active-carbon adsorption desorption condensing recovery, in the step S003 be desorbed after mixed gas into
Enter cooling in condenser, the organic solvent after liquefaction, which flows into accumulator tank, to be recycled, and remaining mixed gas passes through gas-liquid separator
It is again introduced into activated carbon adsorption device by pipeline afterwards.
In the method for the exhaust gas active-carbon adsorption desorption condensing recovery, the mixed gas after being desorbed in the step S003 is first
It is entered back into after being cooled down by heat exchanger cooling in condenser.
A kind of exhaust gas active-carbon adsorption desorption condensate recycling device, including the first blower and the first blower pass through tee tube and connect
Activated carbon adsorption device, mobile the active carbon desorption apparatus and condenser connect, the air inlet of the condenser pass through pipeline
It is connect with the venthole of active carbon desorption apparatus, exhaust outlet is connected to the threeway connected between the first blower and activated carbon adsorption device
Guan Shang.
In the exhaust gas active-carbon adsorption desorption condensate recycling device, described device further includes heat exchanger, the heat exchanger packet
Include the first air inlet, the second air inlet, the first gas outlet and the second gas outlet, first gas outlet and the second air inlet difference
It is connect with the inlet end of active carbon desorption apparatus and outlet side, second gas outlet is connect with condenser.
In the exhaust gas active-carbon adsorption desorption condensate recycling device, gas-liquid separation is connected on the exhaust outlet of the condenser
Device, the tee tube connected between the gas-liquid separator and the first blower and activated carbon adsorption device are connected by pipeline.
In the exhaust gas active-carbon adsorption desorption condensate recycling device, the first gas outlet of the heat exchanger and active carbon are desorbed
Air flow control valve and the second blower are disposed on the pipeline of device connection.
The utility model has the advantages that
The present invention provides a kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery, the method generates enterprise
Volatile organic waste gas achievees the purpose that purify exhaust gas, absorption by the activated carbon adsorption device with multiple independent adsorption areas
The active carbon that exhaust gas reaches saturation state makes exhaust gas desorption by mobile active carbon desorption apparatus and will by condenser
The exhaust gas and air separation desorbed, is liquids recovery by exhaust gas conversion, and air is again introduced into activated carbon adsorption device by pipeline
Middle purification efficiently quickly will not generate secondary pollution in the process, and do not need to stop production and carry out, and avoid and pass through caused by halt production
Ji loss, the air source as desorption medium is abundant, needs not move through special processing, at low cost；Described device structure letter
Single, stable, the active carbon desorption apparatus and condenser, can be by third-party enviromental protection enterprises using mobile structure
It provides, reduces the cost payout of production enterprise, more meet the economic interests of enterprise.It can be used as money after organic exhaust gas condensing recovery
Source is reused for producing or third party utilizes, accomplishes resource reusing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the exhaust gas active-carbon adsorption desorption condensate recycling device provided by the invention；
Wherein, taking-up and installation direction of the arrow direction for charcoal canister in figure.
Specific embodiment
The present invention provides a kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery, for make the purpose of the present invention,
Technical solution and effect are clearer, clear, and the present invention is described in more detail as follows in conjunction with drawings and embodiments.It should
Understand, described herein specific examples are only used to explain the present invention, is not intended to limit the present invention.
A kind of method of exhaust gas active-carbon adsorption desorption condensing recovery, comprising:
S001., the exhaust gas generated in production process is introduced to the activated carbon adsorption device with multiple independent adsorption areas by blower
In, exhaust gas is discharged into environment after activated carbon adsorption, and the active carbon of adsorption saturation is transferred to work from activated carbon adsorption device
In property charcoal desorption apparatus；
S002. exhaust gas is desorbed from active carbon by thermal medium in active carbon desorption apparatus, the active carbon after desorption is pacified again
It is attached in activated carbon adsorption device；
S003. the exhaust gas after being desorbed enters cooling in condenser, recycling.
In the above method, the exhaust gas generated in enterprise production process is delivered to by blower with multiple independent adsorption areas
In activated carbon adsorption device, the harmful components in exhaust gas are tightly held by activated carbon, and purified gas is from activated carbon adsorption device
It is discharged into atmospheric environment in exhaust outlet, achievees the purpose that purify exhaust gas；The exhaust outlet of activated carbon adsorption device is dense equipped with gas
If degree detector just will call the police detect that the concentration of pernicious gas in the gas of discharge reaches limit value, show the work opened
The active carbon in corresponding adsorption zone in property charcoal adsorbent equipment reaches saturation state, at this point, close corresponding adsorption zone into
Air valve and outlet valve, open the outlet valve of the air intake valve of stand-by adsorption zone, and are up to the work of saturation state
Property charcoal takes out from the merging hole in adsorption zone, is put into active carbon desorption apparatus, by thermal medium to the activity of adsorption saturation
Charcoal is desorbed, and the active carbon after desorption can be again mounted in activated carbon adsorption device, and the exhaust gas that generation is desorbed is situated between with heat
Matter enters in condenser, cooling, recycles；Industrial waste gas has not only been purified, but also has realized the regeneration of active carbon, in the process
Do not generate secondary pollution, high-efficiency environment friendly.
Preferably, pass through the exhaust gas in hot-air Detachment Activity charcoal in the step S002 in active carbon desorption apparatus；Institute
It states in active carbon desorption apparatus, the medium by heating ozone as desorption makes hot-air by active carbon layer, makes to inhale
Attached exhaust gas on the activated carbon is desorbed out；The air source is abundant, at low cost, and it is subsequent can be easily separated with exhaust gas, no
Secondary pollution can be generated.
Preferably, air is heated to work temperature by air heater again after heat exchanger heats up in the step S002
The active carbon of adsorption saturation is desorbed after degree.Fresh air as desorption medium, which enters, to be initially entered in heat exchanger, with
After the mixed gas of desorption manipulation carries out heat exchange, preliminary heating is heated to operating temperature using air heater, effectively
The thermal energy of mixed gas after desorption is utilized, reduces the energy consumption of air heater, reduces operating cost, meets the need of environmental protection
It asks.
Preferably, the air in the step S002 after heat exchanger heats up is entered by the control of air flow control valve
Flow in active carbon desorption apparatus；In actual motion, the amount control for the active carbon being desorbed as required enters active carbon and is desorbed
The amount of air in device provides the utilization rate of air, reduces the consumption of the energy of air heater.
Preferably, the mixed gas after being desorbed in the step S003 enters cooling in condenser, the gaseous mixture after liquefaction
Body is flowed into accumulator tank and is recycled, and remaining mixed gas is again introduced into activated carbon adsorption dress by pipeline after gas-liquid separator
In setting；Strength of fluid in accumulator tank is higher, can further utilize；Part may be also mixed in remaining mixed gas
Exhaust gas, the amount for the exhaust gas being discharged into environment can be reduced by being passed through in activated carbon adsorption device further purification again, be prevented
Secondary pollution is caused to environment.
Preferably, the mixed gas after being desorbed in the step S003 enters back into condenser after first passing through heat exchanger cooling
It is cooling.The temperature of mixed gas after desorption is relatively high, is directly entered cooling requirement in condenser and consumes more energy, first
By heat exchanger and enter the fresh air progress heat exchange of the temperature as desorption medium of heat exchanger comparatively, it can be made
Temperature reduces to a certain extent, and can tentatively heat fresh air, and the reduction later period is heated to the energy of operating temperature
Consumption, has effectively achieved the conversion of energy, it is noted that the utilization rate of energy reduces job costs.
Referring to Fig. 1, a kind of exhaust gas active-carbon adsorption desorption condensate recycling device, including the first blower 1 and the first blower 1
Activated carbon adsorption device 2, mobile the active carbon desorption apparatus 3 and condenser 4 connected by tee tube 5, the condenser 3
Air inlet connect with the venthole of active carbon desorption apparatus 3 by pipeline, exhaust outlet is connected to the first blower 1 and active carbon suction
On the tee tube 5 connected between adsorption device 2.
Above-mentioned apparatus allows productive enterprise to pass through third-party ring using mobile desorption apparatus and condenser
Desorption and condensing recovery exhaust gas that enterprise carries out active carbon are protected, the cost payout of production enterprise is reduced；Above-mentioned apparatus structure
Simply, stable；Activated carbon adsorption device includes multiple independent adsorption zones, only by air intake valve and drain tap respectively
It is vertical to control, it is provided with gas concentration detection apparatus on exhaust pipe, for monitoring exhaust gas in the gas after activated carbon adsorption
Concentration then alarm when the concentration of exhaust gas reaches setting value, remind staff to replace active carbon, and make exhaust gas
Pass through other adsorption zones.Using mobile structure, enterprise can be voluntarily customized or passes through for desorption apparatus and condenser
The movable desorption condensing unit of the enviromental protection enterprise of tripartite realizes the condensing recovery work of the desorption and exhaust gas of active carbon, flexibly selects
It selects, adapts to the demand of different enterprises.
Specifically, described device further includes heat exchanger, the heat exchanger 7 include the first air inlet 71, the second air inlet 72,
First gas outlet 73 and the second gas outlet 74, first gas outlet 73 and the second air inlet 72 respectively with active carbon desorption apparatus
3 inlet end is connected with outlet side, and second gas outlet is connect with condenser 4.First air inlet of the fresh air from heat exchanger
Hole enters, and is discharged after heat exchange is carried out in heat exchanger from the first gas outlet, further by the sky in active carbon desorption apparatus
Hot-air heater, which is heated to the exhaust gas of the absorption in active carbon is driven after operating temperature to be desorbed from active carbon, to be come out；What desorption came out
Mixed gas is entered back into from the second air inlet by being discharged after heat exchange cooling from the second gas outlet in heat exchanger, subsequently into cold
Cooling recycling in condenser.
Further, gas-liquid separator 6, the gas-liquid separator 6 and first are connected on the exhaust outlet of the condenser 4
The tee tube 5 connected between blower 1 and activated carbon adsorption device 2 is connected by pipeline；When condenser is started to work, gas-liquid is connected
Connecting pipe between separator and tee tube, and valve is opened, the gas after making condensation process back flows back into work by pipeline
Property charcoal adsorbent equipment in, further purify；Gas-liquid separator is set on the exhaust outlet of condenser, enable condensed waste liquid with
Air is kept completely separate, and is avoided waste liquid carrying from reentering in activated carbon adsorption device in air, is caused adsorption desorption again and cold
It is solidifying, reduce clean-up effect.
Further, it is successively set on the pipeline that the first gas outlet 73 of the heat exchanger 7 is connect with active carbon desorption apparatus 3
It is equipped with air flow control valve 8 and the second blower 9.In practical application, the air after exchanging heat in heat exchanger is desorbed according to active carbon
The amount of active carbon in device controls the flow of air by air flow control valve, and enters air after pressurizeing by blower
It is heated to operating temperature in heater, improves the utilization rate of air, reduces the loss of energy；Blower can not only control air
Flow direction, and can pressurize to it, its flowing velocity is improved, to improve the efficiency of desorption.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (10)
1. a kind of method of exhaust gas active-carbon adsorption desorption condensing recovery characterized by comprising
S001., the exhaust gas generated in production process is introduced to the activated carbon adsorption device with multiple independent adsorption areas by blower
In, exhaust gas is discharged into environment after activated carbon adsorption, and the active carbon of adsorption saturation is transferred to work from activated carbon adsorption device
In property charcoal desorption apparatus；
S002. exhaust gas is desorbed from active carbon by thermal medium in active carbon desorption apparatus, the active carbon after desorption is pacified again
It is attached in activated carbon adsorption device；
S003. the exhaust gas after being desorbed enters cooling in condenser, recycling.
2. the method for exhaust gas active-carbon adsorption desorption condensing recovery according to claim 1, which is characterized in that the step
Pass through the exhaust gas in hot-air Detachment Activity charcoal in S002 in active carbon desorption apparatus.
3. the method for exhaust gas active-carbon adsorption desorption condensing recovery according to claim 2, which is characterized in that the step
Air is heated to the active carbon after operating temperature to adsorption saturation by air heater again after heat exchanger heats up in S002
It is desorbed.
4. the method for exhaust gas active-carbon adsorption desorption condensing recovery according to claim 3, which is characterized in that the step
Air in S002 after heat exchanger heats up enters the flow in active carbon desorption apparatus by the control of air flow control valve.
5. the method for exhaust gas active-carbon adsorption desorption condensing recovery according to claim 3, which is characterized in that the step
Mixed gas after being desorbed in S003 enters cooling in condenser, and the mixed gas after liquefaction, which flows into accumulator tank, to be recycled, remaining
Mixed gas be again introduced into activated carbon adsorption device after gas-liquid separator by pipeline.
6. the method for exhaust gas active-carbon adsorption desorption condensing recovery according to claim 5, which is characterized in that the step
Mixed gas after being desorbed in S003 enters back into cooling in condenser after first passing through heat exchanger cooling.
7. a kind of device of the method for exhaust gas active-carbon adsorption desorption condensing recovery of any of claims 1-6,
It is characterized in that, described device includes the first blower, the activated carbon adsorption device being connect by tee tube with the first blower, movement
The active carbon desorption apparatus and condenser of formula, the air inlet of the condenser pass through the venthole of pipeline and active carbon desorption apparatus
Connection, exhaust outlet are connected on the tee tube connected between the first blower and activated carbon adsorption device.
8. exhaust gas active-carbon adsorption desorption condensate recycling device according to claim 7, which is characterized in that described device is also wrapped
Including heat exchanger, the heat exchanger includes the first air inlet, the second air inlet, the first gas outlet and the second gas outlet, and described first
Gas outlet and the second air inlet are connect with the inlet end of active carbon desorption apparatus and outlet side respectively, second gas outlet with it is cold
Condenser connection.
9. exhaust gas active-carbon adsorption desorption condensate recycling device according to claim 7, which is characterized in that the condenser
Gas-liquid separator, the threeway connected between the gas-liquid separator and the first blower and activated carbon adsorption device are connected on exhaust outlet
Pipe is connected by pipeline.
10. exhaust gas active-carbon adsorption desorption condensate recycling device according to claim 7, which is characterized in that the heat exchanger
The pipeline that is connect with active carbon desorption apparatus of the first gas outlet on be disposed with air flow control valve and the second blower.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810649064.2A CN109012014A (en) | 2018-06-22 | 2018-06-22 | A kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery |
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| CN201810649064.2A CN109012014A (en) | 2018-06-22 | 2018-06-22 | A kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery |
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| CN110721552A (en) * | 2019-11-19 | 2020-01-24 | 盐城市迎凯涂装设备有限公司 | Online desorption waste gas treatment system and treatment process |
| CN110772927A (en) * | 2019-06-28 | 2020-02-11 | 上海深城环保设备工程有限公司 | Parallel pipe type gas adsorption concentration device |
| CN110801706A (en) * | 2019-10-12 | 2020-02-18 | 武汉旭日华环保科技股份有限公司 | Distributed processing device and method for volatile organic compounds |
| CN116272232A (en) * | 2023-02-22 | 2023-06-23 | 苏州博瑞达高分子材料有限公司 | Condensation recovery device and method for brominated epoxy resin |
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