Conversion of thiophene on molybdena-alumina catalysts containing group 8-10 metals: Effect of H2S uptake

Mária Dobrovolszky, K. Matusek, Z. Paál, Pál Tétényi

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Ageing and the effect of H2S on the activity and selectivity of Co-, Ru-, Pd-, Ir-and Pt-promoted and unpromoted MoOx-Al2O3 catalysts have been studied in relation to decomposition of thiophene. The overall activity increased on unpromoted and Pd-promoted molybdena-alumina, whereas on other catalysts it decreased substantially. The selectivity of production of butane and of fragmented hydrocarbons decreased on all catalysts. The changes in catalytic behaviour were caused by the uptake of H2S added to the system and produced in hydrodesulfurization (HDS) of thiophene. The results indicate no direct correlation between the propensity to interact with H2S and the HDS activity. It follows from data on changes in selectivity, that metal and molybdena act predominantly independently at the early stages of sulfidation.

Original languageEnglish
Pages (from-to)3137-3142
Number of pages6
JournalJournal of the Chemical Society - Faraday Transactions
Volume89
Issue number16
DOIs
Publication statusPublished - 1993

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Thiophenes
Aluminum Oxide
thiophenes
Hydrodesulfurization
aluminum oxides
selectivity
Metals
catalysts
Catalysts
metals
sulfidation
Catalyst selectivity
butanes
Hydrocarbons
hydrocarbons
Aging of materials
Decomposition
decomposition

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Conversion of thiophene on molybdena-alumina catalysts containing group 8-10 metals : Effect of H2S uptake. / Dobrovolszky, Mária; Matusek, K.; Paál, Z.; Tétényi, Pál.

In: Journal of the Chemical Society - Faraday Transactions, Vol. 89, No. 16, 1993, p. 3137-3142.

Research output: Contribution to journalArticle

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