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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
Country of Publication:
United States
Language:
English

References (6)

Using chemical-looping with oxygen uncoupling (CLOU) for combustion of six different solid fuels journal February 2009
Mechanistic investigation of chemical looping combustion of coal with Fe2O3 oxygen carrier journal July 2011
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
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