Geometric factors in K and Al promoting of the Fe/MgO Fischer-Tropsch catalyst

Goran Boskovic, Goran Vlajnic, Erne Kis, Paula Putanov, Laszlo Guczi, Karoly Lazar

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The activity of K- and Al-promoted Fe/MgO catalyst for Fischer-Tropsch synthesis was measured under atmospheric pressure, with the aim to determine the promoter's influence on the catalyst selectivity, particularly in terms of olefins and isomers of lower hydrocarbons. The results have been correlated to the data of a previous study on the same catalyst, made under elevated pressure and designed for the alcohol production. It has been concluded that the promoting effect of K should be attributed to a geometric influence rather than to electronic promotion. The influence of Al promoter manifests itself like the "skin effect", resulting in suppression of adsorption of both CO and H2.

Original languageEnglish
Pages (from-to)2090-2095
Number of pages6
JournalIndustrial and Engineering Chemistry Research
Volume33
Issue number9
DOIs
Publication statusPublished - Jan 1 1994

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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