Title:
醗酵アルコールの精製処理方法
Document Type and Number:
Japanese Patent JP5593629
Kind Code:
B2
Abstract:
The present invention relates to a method for purifying an aqueous solution of fermentation alcohol to give anhydrous alcohol, wherein a mash column is controlled such a manner that an alcohol concentration of an alcohol/water mixed vapor distilled from a mash column is less than 50% by weight and a reflux amount of a condensate to a distillation column is controlled such a manner that an alcohol concentration of an alcohol/water mixed vapor that is distilled from the distillation column is 55 to 85% by weight. According to the present method, the purification for obtaining an anhydrous alcohol from an aqueous solution of a fermentation alcohol with the use of a mash column, a pressurized distillation column and a membrane separator can be more conveniently carried out with an extremely high energy efficiency as the whole process.
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Inventors:
Masao Kikuchi
Inside west Shunsuke
Inside west Shunsuke
Application Number:
JP2009087054A
Publication Date:
September 24, 2014
Filing Date:
March 31, 2009
Export Citation:
Assignee:
Ube Industries, Ltd.
International Classes:
C07C29/82; C07C31/08; C12P7/06
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