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Received September 19, 2006
Accepted October 13, 2006
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Optimal conditions for partial oxidation of propane over ceria-promoted nickel/calcium hydroxyapatite
Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Korea 1Battery and Fuel Cell Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
Korean Journal of Chemical Engineering, March 2007, 24(2), 226-232(7), 10.1007/s11814-007-5057-5
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Abstract
.In order to produce hydrogen for application to fuel cells, the optimal conditions for partial oxidation of propane were studied in this research. Ceria-promoted nickel-calcium hydroxyapatite catalysts (CexNi2.5Ca10(OH)2(PO4)6; x=0.1-0.3) were investigated for determination of the optimal content of ceria and ratio of O2/C3H8. With O2/C3H8=1.5 (ideal reaction), ceria-promoted catalysts did not exhibit higher hydrogen yield than the unpromoted catalyst. However, as the O2/C3H8 ratio was increased to 2.0 and higher, ceria-promoted catalysts exhibited higher hydrogen yield and lower hydrocarbon by-product selectivities. The optimal conditions were determined to be content of ceria (x) of 0.1 and O2/_x000D_
C3H8 ratio of 2.0.
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