The influence of phosphorus on the structure and hydrodesulfurization activity of sulfided Co and Co-Mo catalysts supported on carbon and alumina

S.M.A.M. Bouwens, A.M. Kraan, van der, V.H.J. Beer, de, R. Prins

Research output: Contribution to journalArticleAcademicpeer-review

34 Citations (Scopus)
45 Downloads (Pure)

Abstract

The thiophene HDS activities of phosphorus-containing Co and Co&z,sbnd;Mo sulfide catalysts supported on ¿-Al2O3 and activated carbon were measured at atmospheric pressure. Phosphorus decreased the thiophene HDS activity of the carbon-supported catalysts considerably but did not affect the activity of the alumina-supported catalysts. From XPS it was inferred that phosphorus improves the dispersion of the cobalt phase in the oxidic precursor state of both the carbon- and alumina-supported catalysts. In the sulfided state the interaction between phosphorus and the metal sulfide phase appeared to depend on the support. In the sulfided carbon-supported catalysts, phosphorus formed a Co-phosphate phase, which is responsible for the decrease in HDS activity, while on alumina phosphorus did not influence the structure of the metal sulfide phase.
Original languageEnglish
Pages (from-to)559-568
Number of pages10
JournalJournal of Catalysis
Volume128
Issue number2
DOIs
Publication statusPublished - 1991

Fingerprint Dive into the research topics of 'The influence of phosphorus on the structure and hydrodesulfurization activity of sulfided Co and Co-Mo catalysts supported on carbon and alumina'. Together they form a unique fingerprint.

Cite this