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1. (WO2018139635) METHOD FOR PRODUCING HIGH CONCENTRATION ALCOHOL

Pub. No.:    WO/2018/139635    International Application No.:    PCT/JP2018/002682
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Tue Jan 30 00:59:59 CET 2018
IPC: C07C 29/76
B01D 3/00
B01D 53/04
B01D 53/047
B01D 61/36
C07C 31/08
C12P 7/06
Applicants: MITSUBISHI CHEMICAL CORPORATION
三菱ケミカル株式会社
Inventors: YAMAMURA, Tadashi
山村 忠史
HIDAKA, Hideto
日▲高▼ 秀人
KAKIUCHI, Hiroyuki
垣内 博行
Title: METHOD FOR PRODUCING HIGH CONCENTRATION ALCOHOL
Abstract:
The present invention addresses the problem of improving the production capacity of an alcohol in a method for producing a high concentration alcohol, said method using a distillation column and an adsorption/desorption column. A method for producing a high concentration alcohol by dehydrating a water-alcohol mixture liquid, which comprises: a distillation step wherein the water-alcohol mixture liquid is introduced into a distillation column so as to obtain a crude alcohol; and an adsorption/desorption step wherein some of the crude alcohol is introduced into an adsorption/desorption column so as to obtain a high concentration alcohol. In this method for producing a high concentration alcohol, other some of the crude alcohol is introduced into a dehydration device so as to obtain a high concentration alcohol.