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:
Jan. 31, 2017
Filed:
Sep. 20, 2013
Ranjani V. Siriwardane, Morgantown, WV (US);
Yueying Fan, Morgantown, WV (US);
Ranjani V. Siriwardane, Morgantown, WV (US);
Yueying Fan, Morgantown, WV (US);
U.S. Department of Energy, Washington, DC (US);
Abstract
The disclosure provides a metal ferrite oxygen carrier for the chemical looping combustion of solid carbonaceous fuels, such as coal, coke, coal and biomass char, and the like. The metal ferrite oxygen carrier comprises MFeOon an inert support, where MFeOis a chemical composition and M is one of Mg, Ca, Sr, Ba, Co, Mn, and combinations thereof. For example, MFeOmay be one of MgFeO, CaFeO, SrFeO, BaFeO, CoFeO, MnFeO, and combinations thereof. The MFeOis supported on an inert support. The inert support disperses the MFeOoxides to avoid agglomeration and improve performance stability. In an embodiment, the inert support comprises from about 5 wt. % to about 60 wt. % of the metal ferrite oxygen carrier and the MFeOcomprises at least 30 wt. % of the metal ferrite oxygen carrier. The metal ferrite oxygen carriers disclosed display improved reduction rates over FeO, and improved oxidation rates over CuO.