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Title: Regenerable mixed copper-iron-inert support oxygen carriers for solid fuel chemical looping combustion process

Patent ·
OSTI ID:1336926
;

The disclosure provides an oxygen carrier for a chemical looping cycle, such as the chemical looping combustion of solid carbonaceous fuels, such as coal, coke, coal and biomass char, and the like. The oxygen carrier is comprised of at least 24 weight % (wt %) CuO, at least 10 wt % Fe2O3, and an inert support, and is typically a calcine. The oxygen carrier exhibits a CuO crystalline structure and an absence of iron oxide crystalline structures under XRD crystallography, and provides an improved and sustained combustion reactivity in the temperature range of 600.degree. C.-1000.degree. C. particularly for solid fuels such as carbon and coal.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Organization:
USDOE
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
9,523,499
Application Number:
13/159,553
OSTI ID:
1336926
Resource Relation:
Patent File Date: 2011 Jun 14
Country of Publication:
United States
Language:
English

References (12)

Process for producing a magnetic recording medium patent May 1979
Methods and systems for heat transfer by unmixed combustion patent October 1998
Solid-state excimer devices and processes for producing same patent September 2003
System and method for dual fluidized bed gasification patent August 2012
Process for CO2 capture using a regenerable magnesium hydroxide sorbent patent June 2013
Apparatus and method for solid fuel chemical looping combustion patent April 2015
Combustion looping using composite oxygen carriers patent-application August 2005
Process for the production of hydrogen and the co-production of carbon dioxide patent-application October 2005
Redox active mass for a chemical looping combustion process patent-application March 2007
Method Of And A Plant For Combusting Carbonaceous Fuel By Using A Solid Oxygen Carrier patent-application January 2009
Process And Apparatus For High Energy Efficiency Chemical Looping Combustion patent-application April 2011
Chemical looping combustion of coke oven gas by using Fe2O3/CuO with MgAl2O4 as oxygen carrier journal January 2010

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