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:
May. 07, 2013
Filed:
Oct. 11, 2010
James H. White, Boulder, CO (US);
Erick J. Schutte, Thornton, CO (US);
Sara L. Rolfe, Loveland, CO (US);
James H. White, Boulder, CO (US);
Erick J. Schutte, Thornton, CO (US);
Sara L. Rolfe, Loveland, CO (US);
Eltron Research & Development, Inc., Boulder, CO (US);
Abstract
Processes are disclosure which comprise alternately contacting an oxygen-carrying catalyst with a reducing substance, or a lower partial pressure of an oxidizing gas, and then with the oxidizing gas or a higher partial pressure of the oxidizing gas, whereby the catalyst is alternately reduced and then regenerated to an oxygenated state. In certain embodiments, the oxygen-carrying catalyst comprises at least one metal oxide-containing material containing a composition having the following formulas: (a) CeBB'B″O, wherein B=Ba, Sr, Ca, or Zr; B′=Mn, Co, and/or Fe; B″=Cu; 0.01<x<0.99; 0<y<0.6; 0<z<0.5; (b) CeNiBO, wherein B=Zr, Ba, Ca, La, or K; 0.02<x<0.1; 0<y<0.1; and 0.02<*<0.15; and 1<δ<2.2 and (c) coal ash either as a catalyst material itself or as a support for said unary or binary metal oxides.