Screening of Combined Mn-Fe-Si Oxygen Carriers for Chemical Looping with Oxygen Uncoupling (CLOU)
Journal article, 2015

Combined oxygen carriers of Mn, Fe, and Si were screened for the chemical looping with oxygen uncoupling process with the objective of identifying materials with high reactivity and sufficient attrition resistance. Eleven oxygen carrier materials were produced by spray-drying and then calcined for 4 h at 1100 and 1200 degrees C. The ability of the oxygen carriers to release oxygen and to convert gaseous fuels was investigated in a batch fluidized-bed reactor under alternating reducing and oxidizing conditions for temperatures ranging from 850 degrees C to 1050 degrees C. The attrition behavior of the different materials was evaluated in a jet-cup attrition rig. All investigated oxygen carriers proved to release oxygen and showed high reactivity toward synthesis gas (50% CO in H-2). Oxygen carrier materials with comparably lower mechanical stability were found to have a higher reactivity toward methane. One of the investigated formulations showed to have both high mechanical stability and resistance toward attrition, as well as good methane conversion and oxygen release.

Author

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Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

[Person 6bcc5faa-3313-474b-81bd-ddd9de6b8c76 not found]

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

[Person c2a86a71-fdb5-4987-ab73-c4d94e60dc22 not found]

Chalmers, Energy and Environment, Energy Technology

[Person 889bc06d-cf5a-4f6a-b828-a34bc62b0983 not found]

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Environmental Inorganic Chemistry

[Person 1c18a98b-4348-4c53-8151-e77b40e4fa48 not found]

Chalmers, Energy and Environment, Energy Technology

[Person d4562f3c-f63a-4198-b961-97247b23717f not found]

Chalmers, Energy and Environment, Energy Technology

Energy & Fuels

0887-0624 (ISSN) 1520-5029 (eISSN)

Vol. 29 3 1868-1880

Novel combustion principle with inherent capture of CO2 using combined manganese oxides that release oxygen (NOCO2)

European Commission (EC), 2012-03-01 -- 2017-02-28.

Subject Categories

Inorganic Chemistry

Areas of Advance

Energy

DOI

10.1021/ef502194s

More information

Created

10/7/2017