Screening of Combined Mn-Fe-Si Oxygen Carriers for Chemical Looping with Oxygen Uncoupling (CLOU)
Artikel i vetenskaplig tidskrift, 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.


Mehdi Arjmand

Chalmers, Kemi och kemiteknik, Energi och material

Volkmar Frick

Chalmers, Kemi och kemiteknik, Energi och material

Magnus Rydén

Chalmers, Energi och miljö, Energiteknik

Henrik Leion

Chalmers, Kemi och kemiteknik, Energi och material

Tobias Mattisson

Chalmers, Energi och miljö, Energiteknik

Anders Lyngfelt

Chalmers, Energi och miljö, Energiteknik

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)

Europeiska kommissionen (EU) (EC/FP7/291235), 2012-03-01 -- 2017-02-28.


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