Study of catalysts for catalytic burners for fuel cell power plant reformers.

Autor: Ismagilov, Zinfer, Kerzhentsev, Mikhail, Sazonov, Vladimir, Tsykoza, Lidia, Shikina, Nadezhda, Kuznetsov, Vadim, Ushakov, Vladimir, Mishanin, Sergey, Kozhukhar, Nikolay, Russo, Gennaro, Deutschmann, Olaf
Zdroj: Korean Journal of Chemical Engineering; May2003, Vol. 20 Issue 3, p461-467, 7p
Abstrakt: Catalytic burners for fuel cell power plant reformers are alternatives to conventional flame burners. Their application is expected to provide uniform temperatures in the reformer, efficient use of low-calorific gaseous by products and reduction of pollutant emissions. For testing in the burners, a series of spherical Pd/CeO2/Al2O3 catalysts were prepared. An optimum concentration of ceria providing the highest thermal stability of catalysts was determined. An effect of catalyst activation in the reaction mixture-1% methane in air was observed. A series of Mn containing oxide catalysts on spherical γ-Al2O3 or (γ+Χ)-Al2O3, both pure and doped with La, Ce and Mg oxides were prepared. The catalysts were characterized by chemical analysis, X-ray phase analysis, BET surface area and activity measurements in methane oxidation. A batch of Mn-Mg-La-Al-O catalyst was prepared for further long-term testing in a model reformer with a catalytic burner. A model reformer with a catalytic burner was designed and fabricated for testing in the composition of the bench-scale Fuel Cell Power Plant. Preliminary testing of this catalyst showed that it provided complete methane combustion at the specified operational temperatures over 900 °C. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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