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:
Dec. 15, 2015
Filed:
Jul. 11, 2012
Richard E. Tobey, St. Charles, IL (US);
Toby D. Allen, Aurora, IL (US);
Peter Martin Lokken, Chicago, IL (US);
Andrew James Heinen, Naperville, IL (US);
Gengsheng Chen, Wilmette, IL (US);
Richard E. Tobey, St. Charles, IL (US);
Toby D. Allen, Aurora, IL (US);
Peter Martin Lokken, Chicago, IL (US);
Andrew James Heinen, Naperville, IL (US);
Gengsheng Chen, Wilmette, IL (US);
COSKATA, LLC, Warrenville, IL (US);
Abstract
The invention relates to improvements in the production of ethanol and acetate by microbial fermentation, particularly to production of alcohols by microbial fermentation of a substrate comprising CO and the addition of an inorganic sulfur additive. It more particularly relates to the provision of an inorganic organic sulfur source to a fermentation system such that one or more microorganisms convert a substrate comprising CO to ethanol. In one aspect the invention uses a sulfur additive comprising inorganic sulfur compounds having a +2 to a +4 sulfur oxidation state that produces sulfur oxoanions and hydrosulfur oxoanions in an aqueous fermentation medium.