Kinetic Peculiarities in the Low-Temperature Oxidation of H2S on Vanadium Catalysts |
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Authors: | PN Kalinkin ON Kovalenko and NN Kundo |
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Institution: | (1) Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia |
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Abstract: | H2S oxidation by oxygen on catalysts V2O5/Al2O3, V2O5/TiO2, V2O5/Al2O3/TiO2 was studied at temperatures below the sulfur dew point. High activity and the oscillation character of the oxidation were
demonstrated by catalysts with low contents of V2O5 (3–5 wt.%). The increase in the V2O5 concentration to 10–20 wt.% results in the reduction of the catalytic activity and oscillation ability. On a pure V2O5 catalyst, the oscillations were not detected. The difference between the catalysts with the high and low concentrations of
V2O5 is explained in terms of the structures of the V5+ species formed in the catalysts.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | H2S oxidation oxygen vanadium catalysts catalytic activity oscillations |
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