Optimal conditions for partial oxidation of propane over ceria-promoted nickel/calcium hydroxyapatite

Sang Yup Lee; Jung Hun Kwak; Min Sung Kim; Suk-Woo Nam; Tae Hoon Lim; Seong-Ahn Hong; Ki June Yoon

Korean Journal of Chemical Engineering, Vol.24, No.2, 226-232, March, 2007

DOI10.1007/s11814-007-5057-5 Export Citation

Optimal conditions for partial oxidation of propane over ceria-promoted nickel/calcium hydroxyapatite

Sang Yup Lee, Jung Hun Kwak, Min Sung Kim, Suk-Woo Nam¹, Tae Hoon Lim¹, Seong-Ahn Hong¹, and Ki June Yoon^†

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

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.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/ C3H8 ratio of 2.0.

Keywords:Calcium Hydroxyapatite;Ceria;Nickel;Partial Oxidation;Propane

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