Authors: FATMA SOYAL BALTACIOĞLU, BERRİN GÜLYÜZ, AHMET ERHAN AKSOYLU, ZEYNEP İLSEN ÖNSAN
Abstract: The kinetics of low temperature CO oxidation were studied over sequentially impregnated 1wt%Pt-0.25wt%SnO_x supported on HNO_3-oxidized activated carbon (AC3) using a wide range of CO (1-10 mol%) and O_2 (1-4 mol%) concentrations. Intrinsic kinetic data were obtained in the initial rates region at 383 K in the absence and presence of 5-45 mol% H_2 in the feed. A power-function rate expression with positive dependence on CO (0.96) and negative dependence on oxygen (--0.31) was obtained for the low temperature oxidation of CO. The effect of H_2 on CO oxidation rates was also investigated under similar conditions.
Keywords: Carbon monoxide, oxidation, kinetics, Pt-Sn catalysts, activated carbon supports, PROX
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