Metal ferrite oxygen carriers for chemical looping combustion of solid fuels

Title: Metal ferrite oxygen carriers for chemical looping combustion of solid fuels

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 MFe.sub.xO.sub.y on an inert support, where MFe.sub.xO.sub.y is a chemical composition and M is one of Mg, Ca, Sr, Ba, Co, Mn, and combinations thereof. For example, MFe.sub.xO.sub.y may be one of MgFe.sub.2O.sub.4, CaFe.sub.2O.sub.4, SrFe.sub.2O.sub.4, BaFe.sub.2O.sub.4, CoFe.sub.2O.sub.4, MnFeO.sub.3, and combinations thereof. The MFe.sub.xO.sub.y is supported on an inert support. The inert support disperses the MFe.sub.xO.sub.y oxides 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 MFe.sub.xO.sub.y comprises at least 30 wt. % of the metal ferrite oxygen carrier. The metal ferrite oxygen carriers disclosed display improved reduction rates over Fe.sub.2O.sub.3, and improved oxidation rates over CuO.

Inventors:: Siriwardane, Ranjani V.; Fan, Yueying

Issue Date:: 2017-01-31

OSTI Identifier:: 1341897

Assignee:: U.S. Department of Energy (Washington, DC) NETL

Patent Number(s):: 9,557,053

Application Number:: 14/032,628

Resource Relation:: Patent File Date: 2013 Sep 20

Research Org:: National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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Works referenced in this record:

Regeneration of complex metal oxides for the production of hydrogen
patent, November 2010

Slager, Terry; Garg, Diwakar; Peng, Xiang-Dong
US Patent Document 7,824,655
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/7824655

Metal ferrite spinel energy storage devices and methods for making and using same
patent, March 2013

Weimer, Alan; Perkins, Christopher; Scheffe, Jonathan
US Patent Document 8,397,508
URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1&Sect2=HITOFF&p=1&u=/netahtml/PTO/search-bool.html&r=1&f=G&l=50&d=PALL&RefSrch=yes&Query=PN/8397508

Development of a Novel Chemical-Looping Combustion: Synthesis of a Solid Looping Material of NiO/NiAl₂O₄
journal, January 1999

Jin, Hongguang; Okamoto, Toshihiro; Ishida, Masaru
Industrial & Engineering Chemistry Research, Vol. 38, Issue 1, p. 126-132
DOI: 10.1021/ie9803265

Manganese/Iron, Manganese/Nickel, and Manganese/Silicon Oxides Used in Chemical-Looping With Oxygen Uncoupling (CLOU) for Combustion of Methane
journal, October 2009

Shulman, Alexander; Cleverstam, Erik; Mattisson, Tobias
Energy & Fuels, Vol. 23, Issue 10, p. 5269-5275
DOI: 10.1021/ef9005466

Investigation of Chemical Looping Combustion of Coal with CuFe₂O₄ Oxygen Carrier
journal, July 2011

Wang, Baowen; Yan, Rong; Zhao, Haibo
Energy & Fuels, Vol. 25, Issue 7, p. 3344-3354
DOI: 10.1021/ef2004078

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