CN111420513A - Low-energy-consumption activated carbon desorption regeneration and solvent recovery device and use method thereof - Google Patents
Low-energy-consumption activated carbon desorption regeneration and solvent recovery device and use method thereof Download PDFInfo
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- CN111420513A CN111420513A CN202010352840.XA CN202010352840A CN111420513A CN 111420513 A CN111420513 A CN 111420513A CN 202010352840 A CN202010352840 A CN 202010352840A CN 111420513 A CN111420513 A CN 111420513A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0036—Multiple-effect condensation; Fractional condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0039—Recuperation of heat, e.g. use of heat pump(s), compression
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0054—General arrangements, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
- B01D5/009—Collecting, removing and/or treatment of the condensate
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- 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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention provides a low-energy-consumption activated carbon desorption regeneration and solvent recovery device, which comprises a heater, a heat recoverer, a cooler, a freezer, a solvent collection tank, an inert gas bottle, a compressor, a radiator and a circulating fan.
Description
Technical Field
The invention relates to a low-energy-consumption activated carbon desorption regeneration and solvent recovery device, in particular to a low-energy-consumption recovery device utilizing inert gas to perform closed cycle desorption regeneration and solvent recovery and a using method thereof.
Background
In the prior art, low-concentration organic waste gas is generally purified by direct catalytic Combustion (CO) and regenerative catalytic combustion (RTO), and the method is characterized in that an activated carbon tank is used for adsorption and concentration, hot air generated by catalytic Combustion (CO) or regenerative combustion (RTO) is used for desorption and regeneration, desorbed organic waste gas is subjected to combustion decomposition treatment, and released energy is used for desorption, but only part of the energy released by combustion under the existing technical conditions is recycled, the process system is complex, the organic waste gas has a large explosion risk, a perfect safety control system needs to be equipped, the equipment cost is high, and the operation cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the low-energy-consumption activated carbon desorption regeneration and solvent recovery device, which uses inert gas as a desorption medium and has the advantages of high safety, low energy consumption, recoverable solvent and zero emission.
The technical scheme adopted by the invention is as follows: a low-energy-consumption activated carbon desorption regeneration and solvent recovery device comprises a heater, a heat recoverer, a cooler, a freezer, a solvent collecting tank, an inert gas bottle, a compressor, a radiator and a circulating fan, wherein an air outlet of the heater is connected with an inlet of an activated carbon box, the heat recoverer is a spiral plate type or shell-and-tube type heat exchanger and is used for preheating circulating fresh air to a temperature higher than the temperature while cooling and reducing desorption waste gas so as to achieve the purpose of heat recovery, the heat recoverer is provided with a hot side inlet, a hot side outlet, a cold side inlet and a cold side outlet, the hot side inlet is connected with a desorption waste gas outlet of the activated carbon box, the hot side outlet is connected with an inlet of the cooler, the cold side inlet is connected with an outlet of the circulating; the cooler continuously cools the desorbed waste gas to normal temperature by using air or cold water shortage and then enters the freezer, and the solvent collection tank is arranged below the freezer and communicated with the bottom of the freezer and used for collecting the solvent subjected to condensation separation; the air outlet of the freezer is connected with the air inlet of the radiator, the compressor, the freezer and the radiator are a whole set of refrigeration device, the air outlet of the radiator is connected with the air inlet of the circulating fan, the gas pipe of the inert gas bottle is connected to a pipeline connected between the air outlet of the radiator and the air inlet of the circulating fan, the inert gas supplemented by the inert gas bottle and the condensed and separated inert gas are converged and then driven to flow circularly by the circulating fan, and the air outlet of the circulating fan is connected with the cold side inlet of the heat recoverer; the heater, the cooler, the circulating fan and the compressor are automatically controlled by the electric cabinet according to a set program.
Further, the heat recoverer is a spiral plate type or shell-and-tube type heat exchanger.
Furthermore, an organic waste gas concentration detector is arranged on a pipeline between the activated carbon box and the heat recoverer.
Another object of the present invention is to provide a method for using a low energy consumption activated carbon desorption regeneration and solvent recovery device, which comprises the following steps:
1) after the desorption air inlet and the desorption air outlet of the activated carbon box are respectively connected with the outlet of the heater and the hot side inlet of the heat recoverer, opening the valve of the inert gas cylinder to replace the air in the system;
2) sequentially starting a circulating fan, a compressor, a heater and a cooler; the compressor, the freezer and the radiator form an air-conditioning freezing system, and the operation of the compressor is automatically controlled according to the set temperature of the freezer; the heater automatically operates according to the set outlet temperature, and the outlet temperature is adjusted within the range of 100-300 ℃; the inert gas released by the inert gas bottle is driven by a circulating fan to sequentially pass through the cold side of the heat recoverer and the heater to be heated to the required desorption temperature and then enter the activated carbon box for desorption;
3) the waste gas desorbed from the activated carbon box is sequentially cooled by a hot side of the heat recoverer, a radiator and a freezer, an organic solvent contained in the waste gas is effectively condensed, the solvent separated by condensation flows into a solvent collecting tank through a pipeline at the bottom of the freezer, and the purified waste gas and the supplemented inert gas are mixed and driven by a circulating fan to circulate until the activated carbon box finishes desorption and regeneration;
4) when the concentration detector detects that the concentration of the organic waste gas in the desorbed waste gas at the outlet of the activated carbon box is less than or equal to a set value, the desorption and regeneration of the activated carbon box are completed, and the system is stopped;
5) and the regenerated activated carbon box is detached and removed and is reused for adsorbing organic waste gas in the organic waste gas purification process, and the activated carbon box saturated in adsorption is replaced to continue desorption regeneration and solvent recovery operation.
Further, in the step 3), the temperature of the freezer is set to be less than or equal to-20 ℃.
Further, in the step 2), the heater is adjustable within the range of 100-300 ℃ according to the set outlet temperature, and the economical efficiency is optimal at 150 ℃.
Further, in the step 4), the concentration of the organic waste gas desorbed from the outlet of the activated carbon box is less than or equal to a set value of 50-500mg/m3。
Compared with the prior art, the invention has the following advantages:
1. inert gas is used as a desorption medium, and closed circulation and low energy loss are realized through the processes of heating, desorption, cooling, separation, solvent recovery, waste heat recovery, preheating, desorption after heating and the like;
2. the inert gas is used as a desorption medium, so that the necessary explosion condition can be eliminated, and the organic gas can be effectively prevented from exploding;
3. inert gas is used as desorption medium, and closed cycle desorption is realized, so that zero emission can be realized, and the method is clean and environment-friendly;
4. inert gas is used as a desorption medium, and the organic solvent with higher purity can be recovered through condensation separation, thereby creating certain economic benefit.
Drawings
FIG. 1 is a schematic view of a low-energy consumption activated carbon desorption regeneration and solvent recovery device system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and features in the embodiments and embodiments in the present application may be combined with each other without conflict, and the present invention will be described in detail with reference to the drawings and with reference to the embodiments.
As shown in figure 1, the low-energy consumption activated carbon desorption regeneration and solvent recovery device is used for desorption and purification of an activated carbon box 10 which is adsorbed and saturated in an organic waste gas purification process, and comprises a heater 1, a heat recoverer 2, a cooler 3, a freezer 4, a solvent collecting tank 5, an inert gas bottle 6, a compressor 7, a radiator 8 and a circulating fan 9, so thatThe activated carbon in the activated carbon box 10 is adsorbed and saturated in the organic waste gas purification process and needs to be desorbed and regenerated, and the activated carbon box 10 is a desorption and purification work object of the device and is in a standardized design, so that the activated carbon box is convenient to disassemble and connect quickly; the air outlet of the heater 1 is connected with the inlet of the activated carbon box 10, the heater 1 heats the inert gas to 100-300 ℃ by using electric energy, the activated carbon in the activated carbon box 10 is desorbed and desorbed by using high temperature, and the device has the best economic benefit when the desorption hot air temperature is 150 ℃ through tests; the heat recoverer 2 is a spiral plate type or shell-and-tube type heat exchanger, the heat recoverer 2 is used for cooling the desorbed waste gas and preheating circulating fresh air to more than 90 ℃ so as to achieve the purpose of heat recovery, a hot side inlet, a hot side outlet, a cold side inlet and a cold side outlet are arranged on the heat recoverer 2, the hot side inlet is connected with the desorbed waste gas outlet of the activated carbon box 10, the hot side outlet is connected with the inlet of the cooler 3, the cold side inlet is connected with the outlet of the circulating fan 9, and the cold side outlet is connected with the inlet of the heater 1; the cooler 3 utilizes air or cold water shortage to continuously cool the desorbed waste gas to normal temperature and then enters the freezer 4, and the solvent collection tank 5 is arranged below the freezer 4 and communicated with the bottom of the freezer 4 for collecting the solvent subjected to condensation separation; the refrigerator 4 cools the desorbed waste gas to below-20 ℃ to fully condense and separate the organic solvent in the waste gas, the condensed liquid organic solvent automatically flows into the solvent collecting tank 5, the air outlet of the refrigerator 4 is connected with the air inlet of the radiator 8, the compressor 7, the refrigerator 4 and the radiator 8 form a whole set of air-conditioning refrigerating device, the heat released by the desorbed waste gas in the refrigerator 4 is transferred to the radiator 8 through a refrigerant under the action of the compressor 7, the radiator 8 preheats the clean gas separated from the organic solvent and coming out of the refrigerator 4 from the temperature of-20 ℃ to above 30 ℃ to realize heat recovery, the air outlet of the radiator 8 is connected with the air inlet of the circulating fan 9, the gas pipe of the inert gas bottle 6 is connected to the pipeline connected between the air outlet of the radiator 8 and the air inlet of the circulating fan 9, and the inert gas supplemented by the inert gas bottle 6 and the condensed and separated clean inert gas are converged and then drive a circulating flow by the circulating The air outlet of the circulating fan 9 is connected with the cold side inlet of the heat recoverer 2, and the circulating fan 9 sends the circulating air into heatThe method comprises the steps that desorbed waste gas is cooled at the cold side of a volume recoverer 2, circulating air is preheated at the same time, the outlet at the cold side of a heat recoverer 2 is connected with the inlet of a heater 1, inert gas is heated to 100-300 ℃ by the heater 1 and then enters an activated carbon box 10 to perform high-temperature desorption on activated carbon, a closed circulation process of 'circulating air heating-activated carbon desorption-heat recovery (circulating air preheating)' -cooling-freezing separation-radiator preheating-fan pressurization circulation-circulating air preheating (heat recovery) '-circulating air heating' is formed, the heater 1, a cooler (3), a circulating fan 9 and a compressor 7 are automatically controlled through an electric cabinet (P L C control) according to a set program, an organic waste gas (VOC) concentration detector 11 is installed on a pipeline between the activated carbon box 10 and the heat recoverer 2, and when the concentration detector 11 detects that the concentration of the organic waste gas desorbed at the outlet of the activated carbon box 10 is smaller than or equal to a set value (503Adjustable range), the desorption regeneration of the activated carbon box 10 is completed, the system stops running, and the activated carbon box 10 is replaced to continue the desorption regeneration and recover the organic solvent.
The using method of the invention is as follows:
1. after an air inlet and an air outlet for desorption of the activated carbon box 10 are respectively connected with an outlet of the heater 1 and an inlet of the hot side of the heat recoverer 2, a valve of the inert gas cylinder 6 is opened, and air in the system is replaced;
2. the circulating fan 9, the compressor 7, the heater 1 and the cooler 3 are sequentially started; the compressor 7, the freezer 4 and the radiator 8 form an air-conditioning freezing system, and the operation of the compressor 7 is automatically controlled according to the set temperature (less than or equal to minus 20 ℃) of the freezer 4; the heater 1 automatically operates according to the set outlet temperature, and the outlet temperature is adjusted within the range of 100-300 ℃ according to the requirement; the inert gas released by the inert gas bottle 6 is driven by the circulating fan 9 to sequentially pass through the cold side of the heat recoverer 2 and the heater 1, and then enters the activated carbon box 10 for desorption after being heated to the required desorption temperature;
3. waste gas desorbed from the activated carbon box 10 is sequentially cooled by the heat side of the heat recoverer 2, the radiator 3 and the freezer 4, the freezer 4 is cooled to below 20 ℃ below zero, organic solvent contained in the waste gas is effectively condensed, the condensed and separated solvent flows into the solvent collecting tank 5 through a pipeline at the bottom of the freezer 4, and the purified waste gas and supplemented inert gas are mixed and driven by the circulating fan 9 to circulate until the activated carbon box 10 finishes desorption regeneration;
4. the solvent collected in the solvent collecting tank 5 can be recycled after the desorption
5. Dismantle activated carbon box 10 after will regenerating and remove and reapply and adsorb organic waste gas in organic waste gas purification technology, this device is changed the saturated activated carbon box 10 of new absorption and is continued to carry out desorption regeneration solvent recovery operation.
Based on the device and the method, the invention realizes that the adsorption and purification efficiency is more than 96 percent, and the VOC emission concentration is less than or equal to 10mg/m3And zero emission is realized in the desorption and regeneration process of the activated carbon box 10.
The operating cost of the air inlet fan and the replacement cost of the active carbon are not considered, and 10000m of waste gas is treated3H VOC concentration 200mg/m3Under the condition, the device is compared with the mainstream VOC treatment process as follows:
as can be seen from the above table, compared with other existing VOC adsorption and purification treatment processes utilizing activated carbon, the device provided by the invention has the advantages of large VOC concentration treatment range, high adsorption and purification efficiency, long service life, low maintenance cost and high safety factor.
The invention has compact structure and small volume, uses inert gas as desorption medium, realizes closed circulation through the processes of heating, desorption, condensation, separation, solvent recovery, preheating, heating and the like, has less consumption of the inert gas, can effectively prevent organic gas from explosion by using the inert gas as the medium, fully recovers the organic solvent from desorption waste gas through multi-stage cooling to create benefit, and sequentially recovers heat released in the cooling and separation process of the organic solvent by using clean circulation medium to reduce the energy consumption of desorption regeneration.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a low energy consumption active carbon desorption regeneration and solvent recovery unit, includes heater (1), heat recoverer (2), cooler (3), freezer (4), solvent collection tank (5), inert gas bottle (6), compressor (7), radiator (8) and circulating fan (9), its characterized in that: the air outlet of the heater (1) is connected with the inlet of the activated carbon box (10), the heat recoverer (2) is a spiral plate type or shell-and-tube type heat exchanger, the heat recoverer (2) is used for preheating circulating fresh air to above 90 ℃ while cooling and reducing the temperature of the desorbed waste gas so as to achieve the purpose of heat recovery, a hot side inlet, a hot side outlet, a cold side inlet and a cold side outlet are arranged on the heat recoverer (2), the hot side inlet is connected with the desorbed waste gas outlet of the activated carbon box (10), the hot side outlet is connected with the inlet of the cooler (3), the cold side inlet is connected with the outlet of the circulating fan (9), and the cold side outlet is connected with the inlet of the; the cooler (3) utilizes air or cold water shortage to continuously cool the desorbed waste gas to normal temperature and then enters the freezer (4), and the solvent collection tank (5) is arranged below the freezer (4) and communicated with the bottom of the freezer (4) for collecting the solvent subjected to condensation separation; an air outlet of the freezer (4) is connected with an air inlet of the radiator (8), the compressor (7), the freezer (4) and the radiator (8) are a whole set of freezing device, an air outlet of the radiator (8) is connected with an air inlet of the circulating fan (9), a gas pipe of the inert gas bottle (6) is connected to a pipeline connected between the air outlet of the radiator (8) and the air inlet of the circulating fan (9), inert gas supplemented by the inert gas bottle (6) and condensed and separated inert gas are converged and then driven to flow circularly by the circulating fan (9), and an air outlet of the circulating fan (9) is connected with a cold side inlet of the heat recoverer (2); the heater (1), the cooler (3), the circulating fan (9) and the compressor (7) are automatically controlled by a set program through the electric cabinet.
2. The low energy consumption activated carbon desorption regeneration and solvent recovery device of claim 1, wherein: the heat recoverer (2) is a spiral plate type or shell-and-tube type heat exchanger.
3. The low energy consumption activated carbon desorption regeneration and solvent recovery device of claim 1, wherein: an organic waste gas concentration detector (11) is arranged on a pipeline between the activated carbon box (10) and the heat recoverer (2).
4. A method of using the low energy consumption activated carbon desorption regeneration and solvent recovery device of any one of claims 1-3, wherein: the method comprises the following steps:
1) after the desorption air inlet and the desorption air outlet of the activated carbon box (10) are respectively connected with the outlet of the heater (1) and the hot side inlet of the heat recoverer (2), the valve of the inert gas cylinder (6) is opened to replace the air in the system;
2) sequentially starting a circulating fan (9), a compressor (7), a heater (1) and a cooler (3); the compressor (7), the freezer (4) and the radiator (8) form an air-conditioning refrigeration system, and the operation of the compressor (7) is automatically controlled according to the set temperature of the freezer (4); the heater (1) automatically operates according to the set outlet temperature, and the outlet temperature is adjusted within the range of 100 ℃ and 300 ℃; inert gas released by the inert gas bottle (6) is driven by a circulating fan (9) to sequentially pass through the cold side of the heat recoverer (2) and the heater (1) to be heated to a required desorption temperature, and then enters an activated carbon box (10) for desorption;
3) the waste gas desorbed from the activated carbon box (10) is sequentially cooled by a hot side of the heat recoverer (2), the radiator (3) and the freezer (4), an organic solvent contained in the waste gas is effectively condensed, the condensed and separated solvent flows into the solvent collecting tank (5) through a pipeline at the bottom of the freezer (4), and the purified waste gas and supplemented inert gas are mixed and driven by the circulating fan (9) to circulate until the activated carbon box (10) completes desorption regeneration;
4) when the concentration detector (11) detects that the concentration of the organic waste gas desorbed from the outlet of the activated carbon box (10) is less than or equal to a set value, the desorption and regeneration of the activated carbon box (10) are completed, and the system stops;
5) and the regenerated activated carbon box (10) is detached and removed and is applied to the organic waste gas purification process again to adsorb organic waste gas, and the new activated carbon box (10) with saturated adsorption is replaced to continue desorption regeneration and solvent recovery operation.
5. The low-energy consumption activated carbon desorption regeneration and solvent recovery device of claim 4 is a use method, and is characterized in that: in the step 3), the temperature of the freezer (4) is set to be less than or equal to-20 ℃.
6. The low-energy consumption activated carbon desorption regeneration and solvent recovery device of claim 4 is a use method, and is characterized in that: in the step 2), the heater (1) is adjustable within the range of 100 ℃ and 300 ℃ according to the set outlet temperature, and the economical efficiency is optimal at 150 ℃.
7. The low-energy consumption activated carbon desorption regeneration and solvent recovery device of claim 4 is a use method, and is characterized in that: in the step 4), the concentration of the organic waste gas desorbed from the outlet of the activated carbon box (10) is less than or equal to a set value of 50-500mg/m3。
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| CN202010352840.XA CN111420513A (en) | 2020-04-29 | 2020-04-29 | Low-energy-consumption activated carbon desorption regeneration and solvent recovery device and use method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112933873A (en) * | 2021-02-02 | 2021-06-11 | 北京市环境保护科学研究院 | Baking varnish waste gas treatment unit |
| CN114354881A (en) * | 2022-01-10 | 2022-04-15 | 中国原子能科学研究院 | System and method for measuring carbon/oxygen in alkali metal and method for replacing sensor |
| CN114931841A (en) * | 2022-05-23 | 2022-08-23 | 北人伯乐氛(西安)环境技术有限公司 | Organic waste gas desorption treatment device and desorption method |
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2020
- 2020-04-29 CN CN202010352840.XA patent/CN111420513A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112933873A (en) * | 2021-02-02 | 2021-06-11 | 北京市环境保护科学研究院 | Baking varnish waste gas treatment unit |
| CN114354881A (en) * | 2022-01-10 | 2022-04-15 | 中国原子能科学研究院 | System and method for measuring carbon/oxygen in alkali metal and method for replacing sensor |
| CN114931841A (en) * | 2022-05-23 | 2022-08-23 | 北人伯乐氛(西安)环境技术有限公司 | Organic waste gas desorption treatment device and desorption method |
| CN114931841B (en) * | 2022-05-23 | 2024-04-16 | 北人伯乐氛(西安)环境技术有限公司 | Organic waste gas desorption treatment device and desorption method |
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