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:
Apr. 21, 2015

Filed:

Nov. 04, 2011
Applicants:

Ravi Chandran, Ellicott City, MD (US);

Jonathan A. Zenz, Poughkeepsie, NY (US);

Dave G. Newport, Cumberland, ME (US);

Hamilton Sean Michael Whitney, Baltimore, MD (US);

Inventors:

Ravi Chandran, Ellicott City, MD (US);

Jonathan A. Zenz, Poughkeepsie, NY (US);

Dave G. Newport, Cumberland, ME (US);

Hamilton Sean Michael Whitney, Baltimore, MD (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 7/00 (2006.01); B01J 8/00 (2006.01); C10G 11/00 (2006.01); B01D 51/02 (2006.01); B01D 45/12 (2006.01); C10J 3/48 (2006.01); C10J 3/72 (2006.01); C10K 1/02 (2006.01); B01J 8/26 (2006.01); B01J 8/38 (2006.01);
U.S. Cl.
CPC ...
B01J 8/004 (2013.01); C10J 3/48 (2013.01); C10J 3/482 (2013.01); C10J 3/485 (2013.01); C10J 3/721 (2013.01); C10K 1/026 (2013.01); C10J 2300/0916 (2013.01); C10J 2300/093 (2013.01); C10J 2300/0946 (2013.01); C10J 2300/0976 (2013.01); C10J 2300/1246 (2013.01); C10J 2300/1261 (2013.01); C10J 2300/1625 (2013.01); C10J 2300/1637 (2013.01); C10J 2300/1807 (2013.01); C10J 2300/1838 (2013.01); C10J 2300/1846 (2013.01); C10J 2300/1853 (2013.01); B01J 8/0055 (2013.01); B01J 2208/00752 (2013.01); B01J 2208/00761 (2013.01); B01J 8/26 (2013.01); B01J 8/388 (2013.01); B01J 2208/00132 (2013.01); B01J 2208/00398 (2013.01); B01J 2208/00415 (2013.01);
Abstract

A solids circulation system receives a gas stream containing char or other reacting solids from a first reactor. The solids circulation system includes a cyclone configured to receive the gas stream from the first reactor, a dipleg from the cyclone to a second reactor, and a riser from the second reactor which merges with the gas stream received by the cyclone. The second reactor has a dense fluid bed and converts the received materials to gaseous products. A conveying fluid transports a portion of the bed media from the second reactor through the riser to mix with the gas stream prior to cyclone entry. The bed media helps manipulate the solids that is received by the cyclone to facilitate flow of solids down the dipleg into the second reactor. The second reactor provides additional residence time, mixing and gas-solid contact for efficient conversion of char or reacting solids.


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