Patent · US Active

Production of alcohol esters and in situ product removal during alcohol fermentation

US9175315B2 · kind B2 · utility

4Cited by

51References

19Claims

0Family size

Assignee

Butamax Advanced Biofuels LLC · US

Inventors

Douglas Robert Anton · Wilmington, US
Stephane Francois Bazzana · Wilmington, US
Keith H. Burlew · Middletown, US
Jelena Cirakovic · Bel Air, US
Robert DiCosimo · Chadds Ford, US
Bruce A. Diner · Chadds Ford, US
Michael Charles Grady · Oaklyn, US
Brian Michael Roesch · Cross Lanes, US
Francis J. Woerner · Bear, US

Key dates

Filing date	Jun 17, 2011
Grant date	Nov 3, 2015
Priority date	—
Expiry date	Jul 22, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/74
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An alcohol fermentation process and composition that includes production of alcohol esters by esterification of product alcohol in a fermentation medium with a carboxylic acid (e.g., fatty acid) and a catalyst (e.g., lipase) capable of esterifying the product alcohol, such as butanol, with the carboxylic acid to form the alcohol esters. The alcohol esters can be extracted from the fermentation medium, and the product alcohol recovered from the alcohol esters. The carboxylic acid can also serve as an extractant for removal of the alcohol esters from the fermentation medium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.