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.:
Date of Patent:
Apr. 30, 2013
Filed:
May. 10, 2011
Belma Demirel, Longmont, CO (US);
Mark S. Bohn, Golden, CO (US);
Charles B. Benham, Arvada, CO (US);
James E. Siebarth, Lakewood, CO (US);
Mark D. Ibsen, Highlands Ranch, CO (US);
Belma Demirel, Longmont, CO (US);
Mark S. Bohn, Golden, CO (US);
Charles B. Benham, Arvada, CO (US);
James E. Siebarth, Lakewood, CO (US);
Mark D. Ibsen, Highlands Ranch, CO (US);
Rentech, Inc., Los Angeles, CA (US);
Abstract
Solvent extraction is used to remove wax and contaminants from an iron-based Fischer-Tropsch catalyst in a natural circulation continuous-flow system. The wax-free catalyst is then subjected to controlled oxidation to convert the iron to its initial oxidized state, FeO. Reactivation of the oxide catalyst precursor is carried out by addition of synthesis gas.