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- W2045409964 abstract "Model Pt catalysts, containing ~0.6 wt% Pt, were prepared by deposition of dinitrodiamino-platinum salt on a nonmicroporous alumina. The carrier has been modified by addition of K or Cl. The dispersion of the metallic phase was varied through different decomposition-reduction processes, but the final activation conditions were identical in all cases. The various catalysts have been tested in the dehydrogenation of cyclohexane which was confirmed to be a structure-insensitive reaction. The thiotolerance level of the various catalysts was measured with a feed contaminated with 0.6 ppm of thiophene. The thiotolerance level is more affected by the acidity of the support (presence of K or Cl) than by variations of Pt particle size. This has been confirmed by making sudden injections of CH2Cl2 or (C2H5)3N into the feed. On removing thiophene from the reactant mixture partial decontamination occurred and the activity recovered to ~50% of the initial value." @default.
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- W2045409964 date "1987-05-01" @default.
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- W2045409964 title "Resistance to sulfur poisoning of metal catalysts Dehydrogenation of cyclohexane on Pt/Al2O3 catalysts" @default.
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- W2045409964 doi "https://doi.org/10.1016/0021-9517(87)90014-5" @default.
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