Abstract
The results of studying the deactivation of both unpromoted platinum–alumina catalysts and those promoted with K, Li, In, Sn, and W in the dehydrogenation of lower and higher paraffins are discussed. The main reason for catalyst deactivation is found to be coke formation. The rate laws of coke formation and paraffin dehydrogenation in the non-steady-state regime of the reaction are derived. The catalyst sulfuring is found to enhance its stability. The effects of oxygen and water impurities on the reactions and coke formation are studied.
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Gaidai, N.A., Kiperman, S.L. Kinetic Models of Catalyst Deactivation in Paraffin Dehydrogenation. Kinetics and Catalysis 42, 527–532 (2001). https://doi.org/10.1023/A:1010529723999
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DOI: https://doi.org/10.1023/A:1010529723999