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.:

US 9150936 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 06, 2015

Filed:

Jul. 12, 2012
Applicants:

Frank A. Dottori, Temiscaming, CA;

Robert Ashley Cooper Benson, North Bay, CA;

Regis-olivier Benech, Chatham, CA;

Inventors:

Frank A. Dottori, Temiscaming, CA;

Robert Ashley Cooper Benson, North Bay, CA;

Regis-Olivier Benech, Chatham, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C13K 13/00 (2006.01); C13K 1/02 (2006.01);
U.S. Cl.
CPC ...
C13K 1/02 (2013.01); C12P 2201/00 (2013.01);
Abstract

Disclosed is an improvement in a conventional process for C5 and C6 sugar recovery from lignocellulosic biomass for fermentation to ethanol, which process including the conventional steps of pretreatment of the biomass with steam at elevated temperature and pressure, collection of C5 sugars from hemicellulose breakdown, cellulose hydrolysis and collection of C6 sugars from cellulose breakdown. The improvement includes conditioning of the biomass prior to the pretreatment step by heating the biomass with steam for a time period between 5 minutes to 60 minutes to achieve a steam treated biomass having a temperature of about 80 to 100° C.; and adjusting a moisture content of the steam treated biomass to about 45% to 80%. An increased recovery of C5 and C6 sugars is achieved compared to the conventional process.


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Dottori, Frank. (2015). Conditioning of biomass for improved c5/c6 sugar release prior to fermentation (U.S. Patent No. 9150936). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9150936

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