The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2020
Filed:
Jul. 29, 2019
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Tadafumi Yamamura, Chiyoda-ku, JP;
Hideto Hidaka, Chiyoda-ku, JP;
Hiroyuki Kakiuchi, Chiyoda-ku, JP;
Mitsubishi Chemical Corporation, Chiyoda-ku, JP;
Abstract
The present invention aims to improve the production capacity of alcohol in a method of producing high concentration alcohol using a distillation column and an adsorption-desorption column. The method is a method of producing high concentration alcohol by dehydration of a water-alcohol mixture, including: a distillation step of introducing a water-alcohol mixture into a distillation column to obtain crude alcohol; and an adsorption-desorption step of introducing a part of the crude alcohol into an adsorption-desorption column to obtain high concentration alcohol; wherein a further part of the crude alcohol is introduced into a dehydration apparatus to obtain high concentration alcohol.