Title:
ORGANIC SOLVENT RECOVERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/190214
Kind Code:
A1
Abstract:
The organic solvent recovery system according to the present invention comprises: an organic solvent recovery device that has a first adsorbent and comprises at least three treatment tanks alternatingly performing an adsorption treatment in which organic solvents are adsorbed by the first adsorbent from a to-be-treated gas that has been introduced from a to-be-treated gas supply flow path and in which a first treated gas is discharged, a desorption treatment in which water vapor is used to desorb organic solvents from the first adsorbent and in which desorbed gas is discharged, and a drying treatment in which the first adsorbent is dried by drying gas and in which a dry outlet gas is discharged; an organic solvent concentration device that has a second adsorbent, adsorbs an organic solvent into the second adsorbent from the first treated gas discharged from the organic solvent recovery device, discharges a second treated gas, and uses desorbing gas to desorb the organic solvent from the second adsorbent so as to discharge the organic solvent as a concentrated gas; and a return flow path that returns the concentrated gas discharged from the organic solvent concentration device to the to-be-treated gas supply flow path.
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Inventors:
OKADA TAKEMASA (JP)
ONO KAZUYUKI (JP)
KOHNO DAIKI (JP)
ONO KAZUYUKI (JP)
KOHNO DAIKI (JP)
Application Number:
PCT/JP2023/011944
Publication Date:
October 05, 2023
Filing Date:
March 24, 2023
Export Citation:
Assignee:
TOYOBO MC CORP (JP)
International Classes:
B01D53/04
Domestic Patent References:
| WO2020158442A1 | 2020-08-06 | |||
| WO2022014013A1 | 2022-01-20 | |||
| WO2022054733A1 | 2022-03-17 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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