Production of syngas from partial oxidation of methane using Pt/CeZrO2/Al2O3 catalysts: The effect of doped alumina

FUEL 126

Carla Eponina Hori, cehori@ufu.br1, Fabiano de Almeida Silva, fabalms@yahoo.com.br1, Diego da Silva Martinez1, Juan Alberto C. Ruiz2, Lisiane Veiga Mattos, lisianem@int.gov.br2, and Fábio Bellot Noronha, fabiobel@int.gov.br2. (1) School of Chemical Engineering, Federal University of Uberlandia, Av Joao Naves de Avila 2121, Campus Santa Monica - Bloco 1 K, Uberlandia, 38400-100, Brazil, (2) Chemistry Department, National Institute of Technology, Av. Venezuela 82, Rio de Janeiro, 20081-310, Brazil
The use of cerium (1 wt%) as a doping element of alumina in Pt/CeO2/Al2O3 and Pt/CeZrO2/Al2O3 catalysts for the partial oxidation of the methane reaction was investigated. Catalysts characterization was accomplished through X-ray diffraction (XRD), BET surface area and temperature programmed reduction (TPR). The results showed that the use of cerium as a doping element propitiated the maintenance of a higher value of BET surface area. XRD analysis showed the formation of a solid solution between ceria and zirconia. The dehydrogenation of cyclohexane reaction rates showed that platinum dispersions were between 51 and 65%. After 24 hours of reaction methane conversions and hydrogen selectivities were higher for the catalysts supported on doped alumina.
 

Advances in Hydrogen Production
8:45 AM-12:00 PM, Tuesday, 12 September 2006 Palace -- Marina Room, Oral

Division of Fuel Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006