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.

Date of Patent:
Nov. 06, 2012

Filed:

Jan. 05, 2012
Applicants:

William A. Evanko, Golden, CO (US);

Aharon M. Eyal, Jerusalem, IL;

David A. Glassner, Littleton, CO (US);

Fudu Miao, Chester Springs, PA (US);

Aristos A. Aristidou, Highlands Ranch, CO (US);

Kent Evans, Littleton, CO (US);

Patrick R. Gruber, Longmont, CO (US);

Andrew C. Hawkins, Parker, CO (US);

Inventors:

William A. Evanko, Golden, CO (US);

Aharon M. Eyal, Jerusalem, IL;

David A. Glassner, Littleton, CO (US);

Fudu Miao, Chester Springs, PA (US);

Aristos A. Aristidou, Highlands Ranch, CO (US);

Kent Evans, Littleton, CO (US);

Patrick R. Gruber, Longmont, CO (US);

Andrew C. Hawkins, Parker, CO (US);

Assignee:

Gevo, Inc., Englewood, CO (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/76 (2006.01);
U.S. Cl.
CPC ...
Abstract

This invention is directed to methods for recovery of C3-C6 alcohols from dilute aqueous solutions, such as fermentation broths. Such methods provide improved volumetric productivity for the fermentation and allows recovery of the alcohol. Such methods also allow for reduced energy use in the production and drying of spent fermentation broth due to increased effective concentration of the alcohol product by the simultaneous fermentation and recovery process which increases the quantity of alcohol produced and recovered per quantity of fermentation broth dried. Thus, the invention allows for production and recovery of C3-C6 alcohols at low capital and reduced operating costs.


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