CN114931841A - Organic waste gas desorption treatment device and desorption method - Google Patents
Organic waste gas desorption treatment device and desorption method Download PDFInfo
- Publication number
- CN114931841A CN114931841A CN202210562612.4A CN202210562612A CN114931841A CN 114931841 A CN114931841 A CN 114931841A CN 202210562612 A CN202210562612 A CN 202210562612A CN 114931841 A CN114931841 A CN 114931841A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- desorption
- type heat
- adsorption unit
- tube type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003795 desorption Methods 0.000 title claims abstract description 68
- 239000007789 gas Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000010815 organic waste Substances 0.000 title claims abstract description 29
- 238000001179 sorption measurement Methods 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 238000009833 condensation Methods 0.000 claims abstract description 30
- 230000005494 condensation Effects 0.000 claims abstract description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 60
- 230000001105 regulatory effect Effects 0.000 claims description 38
- 229910052757 nitrogen Inorganic materials 0.000 claims description 29
- 230000008569 process Effects 0.000 claims description 27
- 239000002904 solvent Substances 0.000 claims description 16
- 239000012071 phase Substances 0.000 claims description 9
- 239000007791 liquid phase Substances 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a desorption treatment device for organic waste gas, which comprises a desorption condensation loop and a bed layer cooling loop which exchange heat with each other. The invention also discloses an adsorption and desorption treatment method of the organic waste gas, and the treatment device adopted by the invention adopts one set of system to carry out high-temperature desorption of the adsorption tank, and the other set of system to carry out cooling of the adsorption tank.
Description
Technical Field
The invention belongs to the technical field of organic waste gas recovery treatment, relates to a desorption treatment device for organic waste gas, and further relates to a desorption method of the desorption device.
Background
The organic waste gas treatment refers to the work of adsorbing, filtering and purifying the organic waste gas generated in the industrial process. The solvent recovery is generally to recover the solvent by adopting the methods of adsorption, desorption, condensation and purification on the high-concentration organic waste gas.
The existing organic waste gas treatment mode can only meet the basic waste gas recovery requirement, but does not have the energy-saving effect, and in the intermittent operation process, part of equipment needs to bear the temperature change of about 150 ℃ in a short time, so that the service life of the equipment is greatly shortened. Therefore, it is necessary to provide an organic waste gas treatment device with more reasonable flow setting and more energy saving.
Disclosure of Invention
The invention aims to provide a desorption treatment device for organic waste gas, which can achieve the aims of recovering heat energy and reducing energy consumption while treating the organic waste gas.
The invention also provides a desorption method of the organic waste gas.
The first technical scheme adopted by the invention is that the organic waste gas desorption treatment device comprises a desorption condensation loop and a bed layer cooling loop which exchange heat with each other.
The first technical scheme of the invention is also characterized in that:
the desorption condensation loop comprises a fin tube type heat exchanger A, a fin tube type heat exchanger B, a fin tube type heat exchanger C, a demister and a fin tube type heat exchanger D which are sequentially connected, and the air inlet end of the fin tube type heat exchanger A is sequentially connected with an adsorption unit A, a fin tube type heat exchanger E, a fan A and the cold side of the air-air plate type heat exchanger.
A pressure regulating valve C and a pressure regulating valve D are respectively arranged between the fan A and the finned tube heat exchanger E, the pressure regulating valve C is used for regulating air inflow, and the pressure regulating valve D is used for regulating air displacement.
The bed layer cooling loop comprises a finned tube heat exchanger F, the air inlet end of the finned tube heat exchanger F is connected with the hot side of the air-air plate heat exchanger, and the air outlet end of the finned tube heat exchanger F is sequentially connected with a fan B and an adsorption unit B.
A pressure regulating valve A and a pressure regulating valve B are respectively arranged between the adsorption unit B and the fan B, the pressure regulating valve A is used for regulating air inflow, and the pressure regulating valve B is used for regulating air displacement.
The second technical scheme adopted by the invention is that the adsorption and desorption treatment method of the organic waste gas comprises a desorption condensation process and a bed layer cooling process, and specifically comprises the following steps:
the desorption and condensation process comprises the following steps: opening a fan A, enabling nitrogen in a pipeline to enter a finned tube type heat exchanger E, heating the nitrogen to 180-230 ℃ by using heat conduction oil in the tube pass of the finned tube type heat exchanger E, sending the heated nitrogen into an adsorption unit A, gradually desorbing the heated nitrogen in the bed layer of the adsorption unit A, sequentially enabling a gas phase containing an organic solvent to enter the finned tube type heat exchanger A, the finned tube type heat exchanger B and the finned tube type heat exchanger C for three-stage cooling, condensing the gas phase solvent desorbed with the nitrogen at a demister into a liquid phase, collecting the liquid phase from a pipe orifice at the bottom of the demister, and sending the liquid phase to the next process; preheating the residual gaseous solvent and all nitrogen after condensation by a fin tube type heat exchanger D, and then sending the gaseous solvent and all nitrogen into the cold side of a gas-gas plate type heat exchanger to exchange heat with a bed layer cooling loop;
the bed layer cooling process comprises the following steps: after the nitrogen heated after the bed is cooled comes out from the adsorption unit B13, the nitrogen firstly passes through the hot side of the gas-gas plate heat exchanger to exchange heat with the desorption condensation loop, then is cooled to 40-55 ℃ through the fin tube heat exchanger F and then enters the adsorption unit B again, the bed is cooled in the adsorption unit B, and the cooling is carried out in the order in the adsorption unit B until the temperature of the bed in the adsorption unit B reaches a set value.
The invention has the following beneficial effects:
1. through the setting of two coupled process flows, the whole desorption process is more energy-saving and efficient:
2. aiming at respective operation parameters of the adsorption and desorption processes, two groups of adsorption units are designed to be matched with one group of desorption units, the equipment capacity of the desorption units is utilized to the maximum extent, and compared with other similar products, the desorption units are lower in equipment cost, smaller in occupied space and more flexible in arrangement;
3. through the process flow setting, the operation process can be more stable, the short-time temperature change of partial equipment is effectively reduced in the intermittent operation process, and the service life of the equipment is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an organic waste gas desorption treatment device according to the present invention;
FIG. 2 is a schematic diagram of the organic waste gas desorption treatment apparatus according to the present invention;
fig. 3 is a schematic diagram of desorption in the organic waste gas desorption apparatus according to the present invention.
In the figure, 1, a finned tube type heat exchanger A, 2, a finned tube type heat exchanger B, 3, a finned tube type heat exchanger C, 4, a demister, 5, a finned tube type heat exchanger D, 6, a pump, 7, an air-air plate type heat exchanger, 8, a fan A, 9, a finned tube type heat exchanger E, 10, an adsorption unit A, 11, a finned tube type heat exchanger F, 12, a fan B, 13, an adsorption unit B, 14, a pressure regulating valve A, 15, a pressure regulating valve B, 16, a pressure regulating valve C, 17 and a pressure regulating valve D are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The organic waste gas desorption treatment device comprises a finned tube heat exchanger A1, a finned tube heat exchanger B2, a finned tube heat exchanger C3, a demister 4, a finned tube heat exchanger D5, a pump 6, a gas-gas plate heat exchanger 7, a fan A8, a finned tube heat exchanger E9, an adsorption unit A10, a finned tube heat exchanger F11, a fan B12, an adsorption unit B13, a pressure regulating valve A14, a pressure regulating valve B15, a pressure regulating valve C16 and a pressure regulating valve D17, as shown in figures 1 and 2.
A1 in FIG. 1 represents the inlet of each adsorption tank in the adsorption unit A10; a2 denotes the outlet of each canister in the adsorption unit A10; b1 represents the inlet of each adsorption tank in the adsorption unit B13; b2 shows the outlet of each canister in the adsorption unit B13.
The organic waste gas desorption treatment device comprises two process loops: a desorption condensation loop and a bed layer cooling loop;
the desorption condensation loop comprises a fin tube type heat exchanger A1, a fin tube type heat exchanger B2, a fin tube type heat exchanger C3, a demister 4, a fin tube type heat exchanger D5, a pump 6, a gas-gas plate type heat exchanger (cold side) 7, a fan A8, a fin tube type heat exchanger E9 and an adsorption unit A10; a pressure regulating valve C16 and a pressure regulating valve D17 are respectively arranged between the fan A8 and the finned tube heat exchanger E9.
The desorption condensation loop can realize two functions; firstly, nitrogen gas containing a high concentration of solvent is cooled in multiple stages, and the solvent is condensed and recovered. Secondly, the nitrogen after condensation and temperature reduction is heated to high temperature again, and is introduced into an adsorption tank for cyclic desorption of the solvent.
The specific operation process of the desorption condensation loop is as follows: the method comprises the following steps that a fan A8 is opened, nitrogen in a pipeline passes through a finned tube heat exchanger E9, the finned tube heat exchanger E9 is heated to 180-230 ℃ by using heat conduction oil, the heated nitrogen is sent into an adsorption unit A10, a solvent in a bed layer of the adsorption unit A10 is gradually desorbed by high-temperature nitrogen, a gas phase containing a high-concentration solvent (VOC organic solvent) is sequentially subjected to three-stage cooling with the finned tube heat exchanger A1, the finned tube heat exchanger B2 and the finned tube heat exchanger C3, the gas phase solvent (desorbed high-temperature nitrogen) in a demister 4 is condensed into a liquid phase, and the liquid phase is collected from a bottom pipe orifice of the demister 4 and sent to the next procedure; the gas phase (the gas phase is a gaseous VOC organic solvent, the desorbed high-temperature nitrogen contains the high-concentration VOC organic solvent, and the condensed part is only the solvent which is changed into liquid to be discharged, wherein the 'gas phase' refers to a small amount of residual gaseous solvent and all nitrogen after condensation) is preheated by the finned tube heat exchanger D5, then is sent to the cold side of the gas-gas plate heat exchanger 7 to exchange heat with another loop (a bed layer cooling loop) to recover the heat therein, and passes through a fan A8 after temperature rise, so that the whole cycle process of the desorption condensation loop is carried out in this order; the pressure regulating valve C16 regulates the pressure according to the pressure of the desorption condensation loop, and when the pressure of the desorption condensation loop is lower than a set value, nitrogen is supplemented to the desorption condensation loop; the pressure regulating valve D17 is adjusted according to the pressure of the desorption condensation loop, and when the pressure of the desorption condensation loop exceeds a set value, the gas is discharged to reduce the pressure.
The bed layer cooling loop comprises a gas-gas plate type heat exchanger 7 (hot side), a fin tube type heat exchanger F11, a fan B12 and an adsorption unit B13;
the bed layer that desorption condensation was accomplished need to be cooled, just can drop into the adsorption process of waste gas once more, and this return circuit alright let in the bed layer after with nitrogen gas cooling and cool off.
The specific operation process of the bed cooling loop is as follows: after the nitrogen heated after passing through the cooling bed comes out from the adsorption unit B13, the nitrogen firstly passes through the hot side of the gas-gas plate heat exchanger 7 to exchange heat with the desorption condensation loop, a part of heat is recovered, and then the nitrogen is cooled to a low temperature (40-55 ℃) through the fin tube heat exchanger F11 and then enters the adsorption unit B13 again, and the bed is cooled in the adsorption unit B13. The above steps are repeated until the temperature of the bed layer in the adsorption unit B13 reaches a set value (lower than 55-60 ℃). The pressure regulating valve A14 regulates the pressure according to the pressure of the bed layer cooling circuit, and when the pressure of the bed layer cooling circuit is lower than a set value, nitrogen is supplemented to the bed layer cooling circuit; the pressure regulating valve B15 is sized according to the bed cooling circuit pressure, and when the bed cooling circuit pressure exceeds a set value, the gas is discharged to reduce the pressure.
For the desorption regeneration of a single packing container, the desorption condensation loop and the bed layer cooling loop form a complete desorption regeneration process. Therefore, in control, different groups of packing containers need to be alternately operated in a desorption condensation loop and a bed cooling loop.
The grouping of the adsorption tanks and the effect on the thermal coupling in the desorption process are shown in fig. 3, and the thermal coupling effect is realized by arranging a gas-gas plate heat exchanger 7 in the desorption module, so that the gas-gas plate heat exchanger can perform heat energy matching on the adsorption tanks in different groups, thereby recovering the heat of bed layer cooling, reducing the cold and heat which need to be input from the outside, and achieving the purpose of energy conservation.
This device can realize two kinds of functions simultaneously, and one set of system carries out the high temperature desorption of adsorption tanks, and the cooling of one set of adsorption tanks that carries on in addition.
The organic waste gas desorption treatment device is characterized in that: through the arrangement of the following two process flows, the whole desorption process is more energy-saving and efficient:
a. the adsorption unit A10 and the adsorption unit B13 are grouped respectively, so that process matching can be carried out on adsorption tanks in different stages; the adsorption unit A10 and the adsorption unit B13 belong to two different adsorption module groups (see FIG. 3).
Each unit comprises at least n +1 adsorption tanks, wherein n adsorption tanks are in an adsorption stage; 1 adsorption tank is in the regeneration stage of filler desorption. Thus, both groups had 1 adsorber tank in the desorption regeneration stage. The adsorption tanks in adsorption unit a10 were: an adsorption tank a1, an adsorption tank a2, an adsorption tank an + 1;
the adsorption tanks in adsorption unit B13 were: an adsorption tank b1, an adsorption tank b2, a.
Activated carbon particles are filled in each adsorption tank in the adsorption unit A10 and each adsorption tank in the adsorption unit B13; the filling amount of the activated carbon and the specification and size of the adsorption tank are related to the working condition of the organic waste gas to be treated.
b. The desorption module is provided with the gas-gas plate type heat exchanger 7, so that the heat energy matching can be carried out on different marshalling adsorption tanks, the heat of bed layer cooling is recovered, the cold quantity and the heat which need to be input from the outside are reduced, and the purpose of energy saving is achieved.
Claims (6)
1. Organic waste gas's desorption processing apparatus, its characterized in that: comprises a desorption condensation loop and a bed layer cooling loop which exchange heat with each other.
2. The organic waste gas desorption treatment apparatus according to claim 1, wherein: the desorption condensation loop comprises a fin tube type heat exchanger A, a fin tube type heat exchanger B, a fin tube type heat exchanger C, a demister and a fin tube type heat exchanger D which are sequentially connected, and the air inlet end of the fin tube type heat exchanger A is sequentially connected with an adsorption unit A, a fin tube type heat exchanger E, a fan A and the cold side of the air-air plate type heat exchanger.
3. The organic waste gas desorption treatment apparatus according to claim 2, wherein: and a pressure regulating valve C and a pressure regulating valve D are respectively arranged between the fan A and the finned tube heat exchanger E, the pressure regulating valve C is used for regulating air inflow, and the pressure regulating valve D is used for regulating air displacement.
4. The organic waste gas desorption treatment apparatus according to claim 2, wherein: the bed layer cooling loop comprises a finned tube heat exchanger F, the air inlet end of the finned tube heat exchanger F is connected with the hot side of the air-air plate heat exchanger, and the air outlet end of the finned tube heat exchanger F is sequentially connected with a fan B and an adsorption unit B.
5. The organic waste gas desorption treatment apparatus according to claim 4, wherein: and a pressure regulating valve A and a pressure regulating valve B are respectively arranged between the adsorption unit B and the fan B, the pressure regulating valve A is used for regulating air inflow, and the pressure regulating valve B is used for regulating air displacement.
6. The method for adsorption and desorption treatment of an organic waste gas according to any one of claims 1 to 5, characterized in that: the method comprises a desorption condensation process and a bed layer cooling process, and specifically comprises the following steps:
the desorption and condensation process comprises the following steps: opening a fan A, enabling nitrogen in a pipeline to enter a finned tube type heat exchanger E, heating the nitrogen to 180-230 ℃ by using heat conduction oil in the finned tube type heat exchanger E, sending the heated nitrogen into an adsorption unit A, gradually desorbing the heated nitrogen from a bed layer of the adsorption unit A, sequentially enabling a gas phase containing an organic solvent to enter the finned tube type heat exchanger A, the finned tube type heat exchanger B and the finned tube type heat exchanger C for three-stage cooling, condensing the desorbed gas phase solvent into a liquid phase at a demister, collecting the liquid phase from a bottom pipe orifice of the demister, and sending the liquid phase to the next process; preheating the residual gaseous solvent and all nitrogen after condensation by a fin tube type heat exchanger D, and then sending the gaseous solvent and all nitrogen into the cold side of a gas-gas plate type heat exchanger to exchange heat with a bed layer cooling loop;
the bed layer cooling process comprises the following steps: after the nitrogen cooled and heated comes out of the adsorption unit B13, the nitrogen firstly passes through the hot side of the gas-gas plate heat exchanger to exchange heat with the desorption condensation loop, then is cooled to 40-55 ℃ through the fin tube heat exchanger F and then enters the adsorption unit B again, and the bed layer is cooled in the adsorption unit B, and the cooling is performed in the adsorption unit B in a circulating mode according to the sequence until the temperature of the bed layer in the adsorption unit B reaches a set value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210562612.4A CN114931841B (en) | 2022-05-23 | 2022-05-23 | Organic waste gas desorption treatment device and desorption method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210562612.4A CN114931841B (en) | 2022-05-23 | 2022-05-23 | Organic waste gas desorption treatment device and desorption method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114931841A true CN114931841A (en) | 2022-08-23 |
| CN114931841B CN114931841B (en) | 2024-04-16 |
Family
ID=82864005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210562612.4A Active CN114931841B (en) | 2022-05-23 | 2022-05-23 | Organic waste gas desorption treatment device and desorption method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114931841B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585854A (en) * | 2013-10-29 | 2014-02-19 | 嘉园环保股份有限公司 | Technology for recovering and processing organic exhaust gas by activated carbon adsorption and N2 desorption |
| CN103933854A (en) * | 2014-02-25 | 2014-07-23 | 中国科学院生态环境研究中心 | Fluidized bed adsorption and desorption apparatus and method of organic exhaust gas |
| CN210845778U (en) * | 2019-08-30 | 2020-06-26 | 广东雪迪龙环境科技有限公司 | Active carbon adsorption and desorption treatment system for organic waste gas in pharmaceutical industry |
| CN111420513A (en) * | 2020-04-29 | 2020-07-17 | 广州市安健环工程咨询有限公司 | Low-energy-consumption activated carbon desorption regeneration and solvent recovery device and use method thereof |
| CN215539629U (en) * | 2021-08-12 | 2022-01-18 | 伯乐氛(北京)环境技术有限公司 | Industrial organic waste gas treatment system |
| CN114234212A (en) * | 2021-11-18 | 2022-03-25 | 浙江菲达环保科技股份有限公司 | Waste heat utilization type zeolite rotating wheel catalytic oxidation VOCs treatment system and method |
| CN114307523A (en) * | 2020-09-27 | 2022-04-12 | 济南圣泉集团股份有限公司 | Clean production process in chemical production field |
| CN114392632A (en) * | 2022-01-30 | 2022-04-26 | 浙江省生态环境科学设计研究院 | Nitrogen-protected organic waste gas condensation and recovery treatment method for degreasing process |
| CN217698579U (en) * | 2022-05-23 | 2022-11-01 | 北人伯乐氛(西安)环境技术有限公司 | Desorption device for organic waste gas treatment |
-
2022
- 2022-05-23 CN CN202210562612.4A patent/CN114931841B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103585854A (en) * | 2013-10-29 | 2014-02-19 | 嘉园环保股份有限公司 | Technology for recovering and processing organic exhaust gas by activated carbon adsorption and N2 desorption |
| CN103933854A (en) * | 2014-02-25 | 2014-07-23 | 中国科学院生态环境研究中心 | Fluidized bed adsorption and desorption apparatus and method of organic exhaust gas |
| CN210845778U (en) * | 2019-08-30 | 2020-06-26 | 广东雪迪龙环境科技有限公司 | Active carbon adsorption and desorption treatment system for organic waste gas in pharmaceutical industry |
| CN111420513A (en) * | 2020-04-29 | 2020-07-17 | 广州市安健环工程咨询有限公司 | Low-energy-consumption activated carbon desorption regeneration and solvent recovery device and use method thereof |
| CN114307523A (en) * | 2020-09-27 | 2022-04-12 | 济南圣泉集团股份有限公司 | Clean production process in chemical production field |
| CN215539629U (en) * | 2021-08-12 | 2022-01-18 | 伯乐氛(北京)环境技术有限公司 | Industrial organic waste gas treatment system |
| CN114234212A (en) * | 2021-11-18 | 2022-03-25 | 浙江菲达环保科技股份有限公司 | Waste heat utilization type zeolite rotating wheel catalytic oxidation VOCs treatment system and method |
| CN114392632A (en) * | 2022-01-30 | 2022-04-26 | 浙江省生态环境科学设计研究院 | Nitrogen-protected organic waste gas condensation and recovery treatment method for degreasing process |
| CN217698579U (en) * | 2022-05-23 | 2022-11-01 | 北人伯乐氛(西安)环境技术有限公司 | Desorption device for organic waste gas treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114931841B (en) | 2024-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107261754B (en) | VOCs waste gas recovery treatment method and device | |
| CN102205235A (en) | Method and apparatus for circulating, desorbing, shunting, recovering, and reclaiming hot gas by using adsorption bed | |
| CN106853315A (en) | Low-concentration organic exhaust gas recovery and processing system | |
| CN114392632B (en) | Nitrogen-protected organic waste gas condensation and recovery treatment method for degreasing process | |
| CN217698579U (en) | Desorption device for organic waste gas treatment | |
| CN109012014A (en) | A kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery | |
| CN111420513A (en) | Low-energy-consumption activated carbon desorption regeneration and solvent recovery device and use method thereof | |
| CN207102240U (en) | VOCs waste gas recovery processing units | |
| CN211537120U (en) | Organic waste gas purification device and system adopting thermal nitrogen desorption | |
| CN211070117U (en) | Device for regenerating adsorbent and recovering organic compound by utilizing hot nitrogen | |
| CN108079766A (en) | A kind of low concentration big flow organic exhaust gas closed loop multistage retracting device and recovery method | |
| CN210729078U (en) | A desorption system is concentrated to vapor for handling useless active carbon that contains VOCs | |
| CN114931841B (en) | Organic waste gas desorption treatment device and desorption method | |
| CN116351195A (en) | Adsorption and hot nitrogen circulating desorption condensation recovery process | |
| CN105597486A (en) | Active carbon granule adsorbing and recycling device and method | |
| CN205084581U (en) | Organic waste gas's device is handled to multiregion | |
| CN108479304A (en) | A kind of NMP recovery and purification methods and system | |
| CN210612931U (en) | Toluene liquid-phase air oxidation method benzyl alcohol preparation reaction tail gas treatment system | |
| CN110755994A (en) | A waste gas treatment system for VOCs retrieves | |
| CN216878578U (en) | Nitrogen protection's degrease technology organic waste gas condensation recovery processing system | |
| CN216171182U (en) | Cryogenic system is retrieved to gaseous adsorber of VOC | |
| CN114768469B (en) | Organic waste gas solvent recovery process | |
| CN217549405U (en) | Energy-saving heat exchange device applied to solvent recovery equipment | |
| CN215233135U (en) | Adsorption device | |
| CN219128774U (en) | Trapping system for realizing energy recovery by heating and cooling step by using heat storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |