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Title:
DEHYDRATION SYSTEM AND DEHYDRATION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/191228
Kind Code:
A1
Abstract:
The present invention reduces the operating cost of a process that comprises membrane separation by enhancing the energy efficiency. A dehydration system for separating water from a fluid to be processed, said fluid containing water and a water-soluble organic compound. This dehydration system comprises: a plurality of distillation columns including a first distillation column and a second distillation column; a separation membrane unit that comprises one or more separation membrane module groups, each of which comprises one or more separation membrane modules each comprising a separation membrane that is selectively permeable to water; and one or more compressor units, each of which comprises one or more compressors. With respect to this dehydration system, the first distillation column, the second distillation column, at least one group among the separation membrane module groups, at least one compressor unit among the compressor units, and the first distillation column are sequentially arranged.

Inventors:
MAEKAWA KAZUYA (JP)
HIDAKA HIDETO (JP)
YAMAZAKI KOICHI (JP)
FUJII SO (JP)
Application Number:
PCT/JP2022/010232
Publication Date:
September 15, 2022
Filing Date:
March 09, 2022
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C07C29/80; B01D3/00; B01D53/22; C07C31/08
Domestic Patent References:
WO2003035222A12003-05-01
WO2016067677A12016-05-06
WO2020085432A12020-04-30
WO2014185269A12014-11-20
Foreign References:
US20090004713A12009-01-01
JPH07227517A1995-08-29
JPH01155928A1989-06-19
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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