Metal ferrite oxygen carriers for chemical looping combustion of solid fuels
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United States of America Patent
Stats
-
Jan 31, 2017
Grant Date -
N/A
app pub date -
Sep 20, 2013
filing date -
Sep 20, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The disclosure provides a metal ferrite oxygen carrier for the chemical looping combustion of solid carbonaceous fuels, such as coal, coke, coal and biomass char, and the like. The metal ferrite oxygen carrier comprises MFexOy on an inert support, where MFexOy is a chemical composition and M is one of Mg, Ca, Sr, Ba, Co, Mn, and combinations thereof. For example, MFexOy may be one of MgFe2O4, CaFe2O4, SrFe2O4, BaFe2O4, CoFe2O4, MnFeO3, and combinations thereof. The MFexOy is supported on an inert support. The inert support disperses the MFexOy oxides to avoid agglomeration and improve performance stability. In an embodiment, the inert support comprises from about 5 wt. % to about 60 wt. % of the metal ferrite oxygen carrier and the MFexOy comprises at least 30 wt. % of the metal ferrite oxygen carrier. The metal ferrite oxygen carriers disclosed display improved reduction rates over Fe2O3, and improved oxidation rates over CuO.
First Claim
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Family
International Classification(s)
- 2013 Application Filing Year
- C01B Class
- 1318 Applications Filed
- 1164 Patents Issued To-Date
- 88.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- C01B Class
- 27.23 % this patent is cited more than
- 8 Age
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|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 31, 2028 |