Device and method for refining ethanol

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12264126
APP PUB NO 20250091974A1
SERIAL NO

18963493

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Abstract

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A device for refining ethanol is disclosed, which includes a fermentation unit, a low-pressure column, a medium-pressure column, a high-pressure column and a membrane separation unit. A method for refining ethanol is disclosed, which specifically includes the following steps: after fermenting the biomass feedstock, feeding fermented mash into a low-pressure column and a high-pressure column which are connected in parallel for refining, mixing two column top distillates, and feeding the mixed column top distillates into a medium-pressure column for further rectification; and purifying the refined ethanol vapor with higher purity obtained after rectification in the medium-pressure column by a membrane separation unit to obtain high-concentration ethanol product vapor. The disclosure couples the differential pressure rectification and the membrane separation unit, adjusts the energy network structure, greatly reduces the vapor usage amount of the whole system, and has the advantages of good separation effect, high product quality and the like.

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Patent Owner(s)

Patent OwnerAddress
BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY100029 NO 15 EAST THIRD RING ROAD CHAOYANG DISTRICT BEIJING BEIJING CITY BEIJING CITY 100029
BEIJING INSTITUTE OF TECHNOLOGY100000 NO 5 SOUTH MAIN STREET HAIDIAN DISTRICT BEIJING ZHONGGUANCUN BEIJING CITY BEIJING CITY 100000

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Qunsheng Beijing, CN 6 1
Tan, Tianwei Beijing, CN 3 0
Tan, Xinyi Beijing, CN 3 0
Zhao, Hongkang Beijing, CN 1 0

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