Regenerable MgO promoted metal oxide oxygen carriers for chemical looping combustion
The disclosure provides an oxygen carrier comprised of a plurality of metal oxide particles in contact with a plurality of MgO promoter particles. The MgO promoter particles increase the reaction rate and oxygen utilization of the metal oxide when contacting with a gaseous hydrocarbon at a temperature greater than about 725.degree. C. The promoted oxide solid is generally comprised of less than about 25 wt. % MgO, and may be prepared by physical mixing, incipient wetness impregnation, or other methods known in the art. The oxygen carrier exhibits a crystalline structure of the metal oxide and a crystalline structure of MgO under XRD crystallography, and retains these crystalline structures over subsequent redox cycles. In an embodiment, the metal oxide is Fe.sub.2O.sub.3, and the gaseous hydrocarbon is comprised of methane.
- 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):
- 8,807,988
- Application Number:
- 13/477,274
- OSTI ID:
- 1150731
- Country of Publication:
- United States
- Language:
- English
Process for the production of hydrogen and the co-production of carbon dioxide
|
patent-application | October 2005 |
Investigation of Fe 2 O 3 with MgAl 2 O 4 for Chemical-Looping Combustion
|
journal | October 2004 |
Development of a Novel Chemical-Looping Combustion: Synthesis of a Solid Looping Material of NiO/NiAl2O4
|
journal | January 1999 |
Regenerable MgO promoted metal oxide oxygen carriers for chemical looping combustion
|
patent | August 2014 |
Similar Records
Regenerable mixed copper-iron-inert support oxygen carriers for solid fuel chemical looping combustion process
Metal ferrite oxygen carriers for gasification of solid carbonaceous fuel