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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 8946108 B1

PDFFull Text
Date of Patent:
Feb. 03, 2015

Filed:

Jun. 02, 2014

Slurry bed fischer-tropsch catalysts with silica/alumina structural promoters

Applicant:

Rentech, Inc., Los Angeles, CA (US);

Inventors:

Dawid J. Duvenhage, Evergreen, CO (US);

Belma Demirel, Clarendon Hills, IL (US);

Assignee:

RES USA, LLC., Commerce City, CO (US);

Attorneys:

Timothy S. Westby

Porter Hedges, LLP

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01J 21/00 (2006.01); B01J 21/16 (2006.01); B01J 29/00 (2006.01); B01J 27/25 (2006.01); B01J 23/40 (2006.01); B01J 23/42 (2006.01); B01J 23/58 (2006.01); B01J 23/70 (2006.01); B01J 23/72 (2006.01); B01J 23/74 (2006.01); B01J 23/00 (2006.01); B01J 23/78 (2006.01); B01J 23/89 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 35/08 (2006.01); B01J 35/10 (2006.01); B01J 37/00 (2006.01); B01J 37/03 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); C10G 2/00 (2006.01);
U.S. Cl.
CPC ...
B01J 21/16 (2013.01); B01J 23/002 (2013.01); B01J 23/78 (2013.01); B01J 23/8946 (2013.01); B01J 35/002 (2013.01); B01J 35/023 (2013.01); B01J 35/08 (2013.01); B01J 35/1019 (2013.01); B01J 35/1038 (2013.01); B01J 37/0045 (2013.01); B01J 37/031 (2013.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); B01J 2523/00 (2013.01); C10G 2/33 (2013.01); C10G 2300/70 (2013.01);
Abstract

A structurally promoted, precipitated, Fischer-Tropsch catalyst that exhibits an RCAI-10 of 0-2.8 and/or produces less than 6 wt % fines after 5 hours ASTM Air Jet Attrition testing, due to formation via: preparing a nitrate solution by forming at least one metal slurry and combining the at least one metal slurry with a nitric acid solution; combining the nitrate solution with a basic solution to form a precipitate; structurally promoting the precipitate with at least one source of silicon to form a promoted mixture, wherein promoting comprises combining the precipitate with (a) silicic acid and one or more component selected from the group consisting of non-crystalline silicas, crystalline silicas, and sources of kaolin or (b) a component selected from the group consisting of non-crystalline silicas and sources of kaolin, in the absence of silicic acid; and spray drying the promoted mixture to produce catalyst having a desired particle size.

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