WO2020203780A1 - Système de récupération de solvant organique - Google Patents

Système de récupération de solvant organique Download PDF

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Publication number
WO2020203780A1
WO2020203780A1 PCT/JP2020/014037 JP2020014037W WO2020203780A1 WO 2020203780 A1 WO2020203780 A1 WO 2020203780A1 JP 2020014037 W JP2020014037 W JP 2020014037W WO 2020203780 A1 WO2020203780 A1 WO 2020203780A1
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WO
WIPO (PCT)
Prior art keywords
organic solvent
carrier gas
desorption
suction
adsorption
Prior art date
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PCT/JP2020/014037
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English (en)
Japanese (ja)
Inventor
武将 岡田
Original Assignee
東洋紡株式会社
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Filing date
Publication date
Application filed by 東洋紡株式会社 filed Critical 東洋紡株式会社
Priority to CN202080025320.6A priority Critical patent/CN113677413A/zh
Priority to JP2021512005A priority patent/JPWO2020203780A1/ja
Priority to KR1020217030629A priority patent/KR20210137480A/ko
Publication of WO2020203780A1 publication Critical patent/WO2020203780A1/fr

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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
    • B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
    • 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
    • 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
    • B01D5/0051—Regulation processes; Control systems, e.g. valves
    • 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
    • B01D5/0084—Feeding or collecting the cooling medium
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/38—Removing components of undefined structure
    • B01D53/44—Organic components

Definitions

  • the present invention relates to an organic solvent recovery system that separates an organic solvent from a gas to be treated containing an organic solvent, purifies and discharges the gas to be treated, and recovers the separated organic solvent using a carrier gas.
  • an adsorbent is used to adsorb and desorb an organic solvent on a gas to be treated containing an organic solvent, and the organic solvent is moved from the gas to be treated to a carrier gas to purify the gas to be treated.
  • An organic solvent-containing gas treatment system that enables recovery of an organic solvent is known.
  • This type of organic solvent recovery system generally includes an adsorption / desorption treatment device in which a gas to be treated containing an organic solvent and a carrier gas in a high temperature state are alternately brought into contact with the adsorbent in time, and the gas is discharged from the suction / desorption treatment device. It is equipped with a condensate recovery device that condenses and recovers the organic solvent by cooling the carrier gas.
  • Patent Document 1 discloses an organic solvent-containing gas treatment system using water vapor as a carrier gas.
  • Patent Document 2 describes an adsorbent that is indirectly heated to a high temperature.
  • An organic solvent recovery system that supplies carrier gas to the vehicle is disclosed.
  • the carrier gas in order to suppress the running cost of the organic solvent recovery system, it is preferable to configure the carrier gas to be circulated and reused in the organic solvent recovery system.
  • the carrier gas discharged from the condensing recovery device contains an uncondensed organic solvent. Therefore, in the case of a configuration in which the carrier gas is circulated and returned to the adsorption / desorption treatment device, the regeneration of the adsorbent may be insufficient, and there is a problem that the purification capacity for the gas to be treated and the recovery efficiency of the organic solvent are naturally limited. was there.
  • an object of the present invention is to provide an organic solvent recovery system in which the above-mentioned problems are solved, running costs can be suppressed, and the purification capacity of the gas to be treated and the recovery efficiency of the organic solvent are improved. And.
  • the present invention has the following configuration.
  • 1. It is an organic solvent recovery system that separates and recovers an organic solvent from a gas to be treated containing an organic solvent, and has a circulation path for circulating and passing a carrier gas and an adsorption / desorption element, and by introducing the gas to be treated.
  • An adsorption / desorption treatment apparatus that alternately performs adsorption of the organic solvent and desorption of the organic solvent by introduction of the carrier gas, and an adsorption / desorption treatment provided on the downstream side of the adsorption / desorption treatment apparatus on the circulation path.
  • a condensation recovery device that cools the carrier gas discharged from the device and condenses and recovers the organic solvent contained in the carrier gas, and a condensation recovery device provided on the upstream side of the adsorption / desorption treatment device on the circulation path.
  • a heating unit for heating the carrier gas in a low temperature state discharged from the condensation recovery device is provided, and the condensation recovery device has a predetermined vapor pressure of an organic solvent contained in the carrier gas discharged from the condensation recovery device.
  • An organic solvent recovery system characterized in that the temperature of the carrier gas discharged from the condensing recovery device is adjusted so as to be equal to or lower than the value.
  • the concentration of the organic solvent in the discharged carrier gas is kept below a certain level by adjusting the temperature so that the vapor pressure of the organic solvent contained in the carrier gas discharged from the condensation recovery device becomes a predetermined value or less. It is not necessary to install another adsorption device for adsorbing and removing the organic solvent in the carrier gas between the condensing recovery device and the adsorption / desorption treatment device. Therefore, the system can be made simple and miniaturized. 2.
  • a temperature measuring means for measuring the temperature of the carrier gas discharged from the condensing recovery device is provided, and the condensing recovery device is provided so that the water vapor pressure becomes a predetermined value or less based on the measured value of the temperature measuring means.
  • the organic solvent recovery system according to 1 above which regulates the temperature of the discharged carrier gas. 3.
  • a vapor pressure measuring means for measuring the vapor pressure of the carrier gas discharged from the condensing recovery device is provided, and the condensing recovery device has the vapor pressure of a predetermined value or less based on the measured value of the vapor pressure measuring means.
  • the organic solvent recovery system according to 1 above which regulates the temperature of the discharged carrier gas. 4.
  • the refrigerant is water, ethylene glycol, propylene glycol, glycerin, ethanol, or a mixture thereof.
  • the concentration of the organic solvent in the discharged carrier gas is kept constant by adjusting the temperature so that the vapor pressure of the organic solvent contained in the carrier gas discharged from the condensation recovery device becomes equal to or lower than a predetermined value. It is possible to do the following, and it is not necessary to install another adsorption device for adsorbing and removing the organic solvent in the carrier gas between the condensation recovery device and the adsorption / desorption treatment device, and the purification capacity can be maintained. .. Therefore, the system can be made simple and miniaturized. As described above, according to the present invention, it is possible to provide an organic solvent recovery system in which the running cost can be suppressed and the purification capacity of the gas to be treated and the recovery efficiency of the organic solvent are improved.
  • the circulation path L1 through which the carrier gas circulates, the adsorption / desorption treatment device 10 provided on the circulation path L1, and the condensation recovery A device 20, a circulation blower 40, and a gas blower 50 to be processed are provided.
  • the carrier gas various types of gases such as steam, heated air, and an inert gas heated to a high temperature can be used.
  • an inert gas which is a gas that does not contain water, is used, the organic solvent recovery system 100A can be configured more simply.
  • the circulation path L1 includes piping lines L4 to L7 shown in the figure.
  • the circulation blower 40 is a blowing means for passing the carrier gas through the circulation path L1
  • the processed gas blower 50 is a blowing means for supplying the treated gas from the piping line L2 to the suction / desorption treatment device 10. is there.
  • the suction / desorption processing device 10 includes a suction / desorption tank A11 and a suction / desorption tank B12, and a heater 30 as a temperature controlling means.
  • the adsorption / desorption tank A11 is filled with an adsorption / desorption element A13 that adsorbs and desorbs an organic solvent
  • the adsorption / desorption tank B12 is filled with an adsorption / desorption element B14 that adsorbs and desorbs an organic solvent.
  • two suction / detachment tanks are provided, but the number may be one or three or more.
  • the heater 30 adjusts the temperature of the carrier gas supplied to the suction / desorption tank A11 or the suction / desorption tank B12 to a high temperature. More specifically, the heater 30 adjusts the temperature of the carrier gas discharged from the condensing recovery device 20 and passing through the circulation blower 40 to a high temperature state and supplies the carrier gas to the suction / desorption tank A11 or the suction / desorption tank B12. Here, the heater 30 adjusts the temperature of the carrier gas introduced into the suction / desorption tank A11 and the suction / desorption tank B12 so that the suction / desorption element A13 and the suction / desorption element B14 are maintained at a predetermined desorption temperature.
  • the adsorption / desorption element A13 and the adsorption / desorption element B14 adsorb the organic solvent contained in the gas to be treated by bringing them into contact with the gas to be treated. Therefore, in the desorption treatment device 10, when the gas to be treated is supplied to the suction / desorption tank A11 or the suction / desorption tank B12, the organic solvent is adsorbed by the suction / desorption element A13 or the suction / desorption element B14, and the organic solvent is removed from the gas to be treated. Then, the gas to be treated is purified and discharged as a clean gas from the suction / desorption tank A11 or the suction / desorption tank B12.
  • the adsorption / desorption element A13 and the adsorption / desorption element B14 desorb the adsorbed organic solvent by contacting the carrier gas in a high temperature state. Therefore, in the suction / desorption treatment device 10, when the carrier gas in a high temperature state is supplied to the suction / desorption tank A11 or the suction / desorption tank B12, the organic solvent is desorbed from the suction / desorption element A13 or the suction / desorption element B14, and the organic solvent is desorbed.
  • the contained carrier gas is discharged from the suction / desorption tank A11 or the suction / desorption tank B12.
  • the adsorption / desorption element A13 and the adsorption / desorption element B14 are composed of an adsorbent containing any one of granular activated carbon, activated carbon fiber, zeolite, silica gel, a porous polymer, and a metal-organic framework.
  • activated carbon or zeolite in the form of granules, powder, honeycomb or the like is used, but more preferably, activated carbon fiber is used. Since the activated carbon fiber has a fibrous structure having micropores on its surface, it has high contact efficiency with gas, and realizes higher adsorption efficiency and desorption efficiency than other adsorbents.
  • Piping lines L2 and L3 are connected to the suction / desorption processing device 10, respectively.
  • the piping line L2 is a piping line for supplying the gas to be treated containing an organic solvent to the suction / desorption tank A11 or the suction / desorption tank B12 via the gas blower 40 to be treated.
  • the valve V1 switches the connection / non-connection state of the piping line L2 to the suction / detachment tank A11
  • the valve V3 switches the connection / non-connection state to the suction / detachment tank B12.
  • the piping line L3 is a piping line for discharging clean gas from the suction / desorption tank A11 or the suction / desorption tank B12.
  • connection / non-connection state to the suction / detachment tank A11 is switched by the valve V2
  • connection / non-connection state to the suction / detachment tank B12 is switched by the valve V4.
  • piping lines L5 and L6 are connected to the suction / desorption processing device 10, respectively.
  • the piping line L5 is a piping line for supplying the carrier gas to the suction / desorption tank A11 or the suction / desorption tank B12 via the heater 30.
  • the connection / non-connection state to the suction / detachment tank A11 is switched by the valve V5
  • the connection / non-connection state to the suction / detachment tank B12 is switched by the valve V7.
  • the piping line L6 is a piping line for discharging the carrier gas from the suction / desorption tank A11 or the suction / desorption tank B12.
  • the connection / non-connection state of the piping line L6 to the suction tank A11 is switched by the valve V6, and the connection / non-connection state to the suction / detachment tank B12 is switched by V8.
  • the gas to be treated and the carrier gas in a high temperature state are alternately supplied to the suction / desorption tank A11 and the suction / desorption tank B12 in time. ..
  • the suction / desorption tank A11 and the suction / desorption tank B12 alternately function as an adsorption tank and a desorption tank in time, and the organic solvent changes from the gas to be treated to the carrier gas in a high temperature state.
  • the suction / desorption tank B12 functions as a desorption tank
  • the suction / desorption tank A11 functions as a desorption tank
  • the suction / detachment tank B12 functions as a suction tank.
  • the condensation recovery device 20 includes a condenser (condenser) 21 and a recovery tank 22.
  • the condenser 21 condenses the organic solvent contained in the carrier gas by adjusting the temperature of the carrier gas in a high temperature state discharged from the suction / desorption tank A11 or the suction / desorption tank B12 to a low temperature state.
  • the capacitor 21 liquefies the organic solvent by indirectly cooling the carrier gas with a refrigerant.
  • the recovery tank 22 stores the organic solvent liquefied by the condenser 21 as a condensate.
  • any one of water, primary alcohol, secondary alcohol, tertiary alcohol, hydrochlorofluorocarbons, hydrofluorocarbons, ammonia or a mixture thereof can be used, and in particular, water, ethylene glycol, propylene glycol and glycerin can be used. , Ethanol, or a mixture thereof, can be used to construct the organic solvent recovery system 100A more simply.
  • Piping lines L6 and L7 are connected to the condensate recovery device 20, respectively.
  • the piping line L6 is a piping line for supplying the carrier gas discharged from the suction / desorption processing device 10 to the condenser 21.
  • the piping line L7 is a piping line for discharging the carrier gas from the condenser 21.
  • the piping line L9 is connected to the capacitor 21.
  • the piping line L9 is a piping line for introducing the organic solvent condensed by the condenser 21 into the recovery tank 22.
  • FIG. 2 is a time chart showing a state of temporal switching between the adsorption process and the adsorption process using the adsorption / desorption element A13 and the adsorption element B14 in the organic solvent recovery system 100A shown in FIG.
  • FIG. 2 the details of the treatment of the gas to be treated using the organic solvent recovery system 100A in the present embodiment will be described by taking the case where an inert gas is used as the carrier gas as an example.
  • the treatment of the gas to be treated is continuously performed by repeatedly carrying out the cycle with one cycle shown in FIG. 2 as a unit period.
  • the adsorption treatment is carried out in the suction / desorption tank A11 of the suction / desorption processing device 10 filled with the suction / desorption element A13.
  • a purge treatment is performed in which the inside of the suction / desorption tank B12 is replaced with an inert gas (at times t0 to t1 shown in FIG. 2).
  • the desorption process (between times t1 and t2 shown in FIG. 2) is carried out.
  • the adsorption treatment is carried out in the suction / desorption tank B12 of the suction / desorption processing device 10 filled with the suction / desorption element B14.
  • a purge treatment for replacing the inside of the suction / desorption tank A11 with an inert gas is carried out, and then the desorption process (between times t3 and t4 shown in FIG. 2) is carried out.
  • the carrier gas containing the organic solvent discharged from the adsorption / desorption treatment device 10 is indirectly cooled by the condenser 21, the temperature is adjusted to a low temperature state to condense the organic solvent, and the organic solvent is recovered.
  • the condensation recovery device 20 adjusts the temperature so that the vapor pressure of the organic solvent contained in the carrier gas discharged from the condenser 21 is equal to or less than a predetermined value.
  • a predetermined value For example, it may have a temperature control unit (not shown) that controls the temperature of the capacitor 21.
  • the vapor pressure of the organic solvent contained in the discharged carrier gas becomes a predetermined value or less, and thus the concentration of the organic solvent in the discharged carrier gas can be kept below a certain value. it can. Therefore, the organic solvent adsorbed on the adsorption / desorption element can be efficiently desorbed.
  • the vapor pressure of the organic solvent contained in the carrier gas discharged from the capacitor 21 is 11.4 mmHg or less in the condensation process.
  • the temperature of the carrier gas is preferably adjusted, and more preferably the temperature of the carrier gas is adjusted to 6.1 mmHg or less.
  • the organic solvent contained in the carrier gas circulated and brought into contact with the suction / desorption element A13 and the suction / desorption element B14.
  • the condensation recovery device 20 adjusts the temperature so that the vapor pressure of the organic solvent contained in the carrier gas discharged from the condenser 21 is equal to or less than a predetermined value, so that the concentration of the organic solvent in the discharged carrier gas is below a certain level. It is not necessary to install another adsorption device for adsorbing and removing the organic solvent in the carrier gas between the capacitor 21 and the adsorption / desorption processing device 10, and the organic solvent recovery system 100A is simplified. It can be configured and miniaturized.
  • the condensation recovery device 20 may include a temperature measuring device (not shown) for measuring the temperature of the carrier gas discharged from the condenser 21.
  • the condensate recovery device 20 can adjust the temperature of the carrier gas discharged from the condenser 21 so that the vapor pressure of the organic solvent contained in the carrier gas becomes equal to or less than a predetermined value based on the measured value of the temperature measuring device.
  • the organic solvent recovery system 100A can be configured more simply.
  • the condensation recovery device 20 may include a vapor pressure measuring device (not shown) for measuring the vapor pressure of the carrier gas discharged from the condenser 21.
  • the condensation recovery device 20 can adjust the temperature of the carrier gas discharged from the condenser 21 so that the vapor pressure of the organic solvent contained in the carrier gas becomes equal to or less than a predetermined value based on the measured value of the water vapor pressure measuring device.
  • the organic solvent recovery system 100A can be configured more simply.
  • the methods for measuring the vapor pressure of carrier gas are hydrogen flame ionization detection method, catalytic oxidation-non-dispersion infrared absorption method, photoionization detection method, detection method using semiconductor sensor, interference amplification reflection method, detection method using detector tube. , Etc., but are not particularly limited.
  • the organic solvent recovery system 100A of the present embodiment described above By using the organic solvent recovery system 100A of the present embodiment described above, the regeneration of the adsorption / desorption element A13 and the adsorption / desorption element B14 is promoted in the desorption treatment, and the adsorption treatment performed thereafter
  • the organic solvent can be efficiently adsorbed and removed from the gas to be treated. Therefore, by using the organic solvent recovery system 100A, the purification ability for the gas to be treated and the recovery efficiency of the organic solvent can be improved, and the system can have a higher performance and a simpler configuration than the conventional system.
  • the organic solvent recovery system 100A of the present embodiment is excellent in economy because the carrier gas can be used repeatedly by constructing a circulation path. Therefore, when an inert gas such as nitrogen gas is used as the carrier gas, the effect of suppressing the running cost can be obtained.
  • a gas containing p-xylene at a concentration of 1500 ppm at 40 ° C. and a relative humidity of 50% RH as an organic solvent was used as the gas to be treated.
  • Nitrogen gas at 120 ° C. was used as the carrier gas.
  • activated carbon fibers having a BET specific surface area of 1500 mg / m 2 were used, and water at 5 ° C. was used as a refrigerant.
  • the suction / desorption tank A12 and the suction / desorption tank B13 of the suction / desorption treatment device 10 are blown at an air volume of 10 Nm 3 / min for 10 minutes by using the gas blower 50 to be treated.
  • the tank was made to function as an adsorption tank, and the adsorption treatment was carried out.
  • the valve was switched to switch one of the suction / detachment tanks to a desorption tank, and the other suction / desorption tank was used as a suction tank.
  • nitrogen gas heated to 120 ° C. by the heater 30 is introduced at an air volume of 1.5 Nm 3 / min to desorb the suction / desorption element. went.
  • the adsorption treatment similar to the above-mentioned conditions was performed.
  • the amount of refrigerant supplied to the condenser 21 is adjusted, and p-xylene is condensed while maintaining the temperature of the nitrogen gas containing p-xylene discharged from the desorption tank at 10 ° C., and the recovery tank is used. Recovered from 22.
  • the vapor pressure of p-xylene contained in the nitrogen gas flowing through the piping line L6 of the portion introduced into the condensation recovery device 20 increased to an average of 13.0 mmHg. It was confirmed that the vapor pressure of p-xylene contained in the nitrogen gas flowing through the piping line L7 of the portion discharged from the condensate recovery device 20 was constantly reduced to 3.6 mmHg. In this embodiment, the temperature of the refrigerant was changed, and the temperature of the nitrogen gas was adjusted so that the vapor pressure of p-xylene contained in the nitrogen gas flowing through the piping line L7 was always 3.6 mmHg or less.
  • the present invention can be effectively used, for example, in a system for treating a gas to be treated containing an organic solvent discharged from a factory or a building.
  • Adsorption / desorption processing device 11 Adsorption / desorption tank A 12 Adsorption tank B 13 Adsorption element A 14 Adsorption element B 20 Condensation recovery device 21 Condenser 22 Recovery tank 30 Heater 40 Circulation blower 50 Processed gas blower 100A Organic solvent recovery system L1 Circulation path L2 to L11 Piping line V1 to V8 Valve

Abstract

Un système de récupération de solvant organique, qui sépare et récupère un solvant organique dans un gaz à traiter contenant le solvant organique, comprend : une voie de circulation pour faire circuler un gaz vecteur; un dispositif d'adsorption et de désorption qui comporte un élément d'adsorption et de désorption et qui effectue en alternance l'adsorption du solvant organique par introduction du gaz à traiter et la désorption du solvant organique par introduction du gaz vecteur; un dispositif de condensation et de récupération qui est disposé dans la voie de circulation sur le côté aval du dispositif d'adsorption et de désorption et qui condense et récupère le solvant organique contenu dans le gaz vecteur par refroidissement du gaz vecteur évacué du dispositif d'adsorption et de désorption; et une unité de chauffage qui est disposée dans la voie de circulation sur le côté amont du dispositif d'adsorption et de désorption et qui chauffe le gaz vecteur à basse température évacué du dispositif de condensation et de récupération. Le dispositif de condensation et de récupération ajuste la température du gaz vecteur évacué du dispositif de condensation et de récupération de sorte que la pression de vapeur du solvant organique contenu dans le gaz vecteur évacué du dispositif de condensation et de récupération est inférieure ou égale à une valeur prescrite.
PCT/JP2020/014037 2019-03-29 2020-03-27 Système de récupération de solvant organique WO2020203780A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202080025320.6A CN113677413A (zh) 2019-03-29 2020-03-27 有机溶剂回收系统
JP2021512005A JPWO2020203780A1 (fr) 2019-03-29 2020-03-27
KR1020217030629A KR20210137480A (ko) 2019-03-29 2020-03-27 유기 용제 회수 시스템

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Application Number Priority Date Filing Date Title
JP2019067528 2019-03-29
JP2019-067528 2019-03-29

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WO2020203780A1 true WO2020203780A1 (fr) 2020-10-08

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JP (1) JPWO2020203780A1 (fr)
KR (1) KR20210137480A (fr)
CN (1) CN113677413A (fr)
TW (1) TW202103772A (fr)
WO (1) WO2020203780A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129240U (fr) * 1989-03-29 1990-10-24
JPH119952A (ja) * 1997-06-18 1999-01-19 Toyo Eng Works Ltd 溶剤回収装置
JP2015000381A (ja) * 2013-06-17 2015-01-05 東洋紡株式会社 有機溶剤回収システム
JP2016195969A (ja) * 2015-04-03 2016-11-24 東洋紡株式会社 有機溶剤回収システム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332924A (ja) 1989-06-30 1991-02-13 Suzuki Motor Corp 空気調和装置
JPH0768127A (ja) 1993-06-15 1995-03-14 Toho Kako Kensetsu Kk 乾熱脱着式溶剤回収装置
CN205323477U (zh) * 2015-12-28 2016-06-22 嘉园环保有限公司 一种节能的氮气脱附回收有机溶剂的装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02129240U (fr) * 1989-03-29 1990-10-24
JPH119952A (ja) * 1997-06-18 1999-01-19 Toyo Eng Works Ltd 溶剤回収装置
JP2015000381A (ja) * 2013-06-17 2015-01-05 東洋紡株式会社 有機溶剤回収システム
JP2016195969A (ja) * 2015-04-03 2016-11-24 東洋紡株式会社 有機溶剤回収システム

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JPWO2020203780A1 (fr) 2020-10-08
CN113677413A (zh) 2021-11-19
KR20210137480A (ko) 2021-11-17

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