Skip to Content
Find More Like This
Return to Search

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

United States Patent

9,523,499
December 20, 2016
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Oxygen Carriers for Solid Fuel Chemical Looping Combustion Process
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.
Siriwardane; Ranjani V. (Morgantown, WV), Tian; Hanjing (Morgantown, WV)
U.S. Department of Energy (Washington, DC)
13/ 159,553
June 14, 2011
GOVERNMENT INTERESTS The United States Government has rights in this invention pursuant to the employer-employee relationship of the Government to the inventors as U.S. Department of Energy employees and site-support contractors at the National Energy Technology Laboratory.