Effect of H2S on pyridine HDN over Ir, Mo and Ir-Mo/Al2O3 sulfide catalysts


The effect of H2S on hydrodenitrogenation (HDN) of pyridine over alumina supported Mo, Ir and mixed Ir-Mo sulfide catalysts was studied. The pyridine hydrogenation was inhibited by H2S on all catalysts, while the cleavage of the C-N bond of intermediate piperidine was facilitated on the Mo and inhibited on the Ir and Ir-Mo catalysts. The promotional offect between Ir and Mo was observed in the piperidine cleavage both in the presence and absence of H2S.

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Correspondence to Zdeněk Vít.

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Vít, Z., Cinibulk, J. Effect of H2S on pyridine HDN over Ir, Mo and Ir-Mo/Al2O3 sulfide catalysts. Reaction Kinetics and Catalysis Letters 77, 43–49 (2002). https://doi.org/10.1023/A:1020383501478

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  • Mo sulfide
  • H2S
  • HDN
  • iridium