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. 03, 2015

Filed:

Dec. 20, 2011
Applicants:

Joseph Broun Powell, Houston, TX (US);

Thomas Lamar Flowers, Katy, TX (US);

Inventors:

Joseph Broun Powell, Houston, TX (US);

Thomas Lamar Flowers, Katy, TX (US);

Assignee:

Shell Oil Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/00 (2006.01); C10G 3/00 (2006.01); C10G 1/06 (2006.01); D21C 7/00 (2006.01); D21C 11/00 (2006.01);
U.S. Cl.
CPC ...
C10G 3/00 (2013.01); C10G 1/065 (2013.01); C10G 2300/1014 (2013.01); C10G 2300/4012 (2013.01); D21C 7/00 (2013.01); D21C 11/00 (2013.01);
Abstract

When processing cellulosic biomass, it may be desirable for a digestion unit to operate without being fully depressurized for process efficiency purposes. A biomass conversion system can comprise a first digestion unit and a second digestion unit that are operatively connected to one another; a valve separating the first digestion unit from the second digestion unit; a fluid circulation loop establishing fluid communication between an outlet of the first digestion unit and an inlet of the second digestion unit; and a bypass line establishing fluid communication between an outlet of the second digestion unit and the fluid circulation loop.


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