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Title: Apparatus and method for solid fuel chemical looping combustion

Patent ·
OSTI ID:1178018
;

The disclosure provides an apparatus and method utilizing fuel reactor comprised of a fuel section, an oxygen carrier section, and a porous divider separating the fuel section and the oxygen carrier section. The porous divider allows fluid communication between the fuel section and the oxygen carrier section while preventing the migration of solids of a particular size. Maintaining particle segregation between the oxygen carrier section and the fuel section during solid fuel gasification and combustion processes allows gases generated in either section to participate in necessary reactions while greatly mitigating issues associated with mixture of the oxygen carrier with char or ash products. The apparatus and method may be utilized with an oxygen uncoupling oxygen carrier such as CuO, Mn.sub.3O.sub.4, or Co.sub.3O.sub.4, or utilized with a CO/H.sub.2 reducing oxygen carrier such as Fe.sub.2O.sub.3.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
9,004,911
Application Number:
13/688,260
OSTI ID:
1178018
Resource Relation:
Patent File Date: 2012 Nov 29
Country of Publication:
United States
Language:
English

References (11)

Investigation of Chemical Looping Combustion by Solid Fuels. 2. Redox Reaction Kinetics and Product Characterization with Coal, Biomass, and Solid Waste as Solid Fuels and CuO as an Oxygen Carrier journal September 2006
Method of generating electricity using an endothermic coal gasifier and MHD generator patent August 1982
Method of producing carbon monoxide and hydrogen by gasification of solid carbonaceous material involving microwave irradiation patent March 1984
Preparation of mixed metal oxide catalysts from nanoscale particles patent September 2011
Using chemical-looping with oxygen uncoupling (CLOU) for combustion of six different solid fuels journal February 2009
Partially reduced nanoparticle additives to lower the amount of carbon monoxide and/or nitric oxide in the mainstream smoke of a cigarette patent January 2007
Evaluation of reaction mechanism of coal–metal oxide interactions in chemical-looping combustion journal November 2010
Chemical-looping with oxygen uncoupling for combustion of solid fuels journal January 2009
Chemical-Looping Combustion of Coal with Metal Oxide Oxygen Carriers journal August 2009
Mechanistic investigation of chemical looping combustion of coal with Fe2O3 oxygen carrier journal July 2011
Process for the production of hydrogen and the co-production of carbon dioxide patent-application October 2005

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