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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 10577544 B1

PDFFull Text
Date of Patent:
Mar. 03, 2020

Filed:

Apr. 15, 2015

Low temperature, low pressure upgrading and stabilization of bio-oil or bio-oil fractions

Applicant:

Iowa State University Research Foundation, Inc., Ames, IA (US);

Inventors:

Marjorie Rover, Ames, IA (US);

Robert C. Brown, Ames, IA (US);

Patrick H. Hall, Ames, IA (US);

Ryan G. Smith, Ames, IA (US);

Assignee:

Iowa State University Research Foundation, Inc., Ames, IA (US);

Attorney:

Pepper Hamilton LLP

Primary Examiner:

Ellen M Mcavoy

Assistant Examiner:

Ming Cheung Po

Int. Cl.
CPC ...
C10G 45/10 (2006.01); C10G 1/00 (2006.01); C07C 1/207 (2006.01); C10G 45/06 (2006.01); C10G 45/08 (2006.01); C12P 7/64 (2006.01);
U.S. Cl.
CPC ...
C10G 45/10 (2013.01); C07C 1/207 (2013.01); C10G 1/002 (2013.01); C10G 45/06 (2013.01); C10G 45/08 (2013.01); C12P 7/64 (2013.01); C07C 2523/42 (2013.01); C07C 2523/44 (2013.01); C07C 2523/46 (2013.01); C07C 2523/882 (2013.01); C07C 2523/883 (2013.01); C07C 2527/11 (2013.01);
Abstract

The present application discloses low temperature, low pressure methods (LTLP) for upgrading and/or stabilizing bio-oil or a bio-oil fraction. One method comprises providing a bio-oil or bio-oil fraction and hydrogen, which are reacted in the presence of a catalyst at a temperature of less than 150° C. and a pressure of less than 100 bar (absolute) to produce a hydrogenated liquid oil at a carbon yield of over 75%. Another method comprises providing a bio-oil or bio-oil fraction, providing oxygen reducing reaction conditions, and reacting the bio-oil or bio-oil fraction under the oxygen reducing reaction conditions at LTLP to produce an upgraded bio-oil product containing fewer carbonyls than the bio-oil or bio-oil fraction. Yet another method comprises providing a bio-oil or bio-oil fraction and a solution comprising one or more fermentation organisms and a sugar source. The solution and bio-oil or bio-oil fraction are combined to obtain a fermentation mixture, which is incubated at 15° C. to 30° C. for 16 to 72 hours to produce an upgraded bio-oil fermentation product containing fewer carbonyls than the bio-oil or bio-oil fraction.

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