Alpha-olefin selectivity during conventional and supercritical Fischer-Tropsch synthesis

Dragomir B. Bukur, Xiaosu Lang, Zhentao Feng

Research output: Contribution to journalArticle


Fischer-Tropsch synthesis was studied on a precipitated iron catalyst (Ruhrchemie LP 33/81) in a fixed bed reactor at several different temperatures (235°C, 250°C and 265°C) and synthesis gas feed compositions (H2/CO = 0.67, 1 or 2) under both supercritical (propane as a supercritical fluid) and conventional (P = 1.5 MPa) operating conditions. It was found that the supercritical operation results in enhanced selectivity of α-olefins relative to conventional (normal) operation. Both total olefin content and α-olefin selectivity decreased with either increase in conversion or H2/CO molar feed ratio, whereas olefin selectivities were essentially independent of reaction temperature.

Original languageEnglish
Pages (from-to)632-634
Number of pages3
JournalACS Division of Fuel Chemistry, Preprints
Issue number2
Publication statusPublished - 1997
Externally publishedYes



  • Alpha-olefins
  • Fischer-Tropsch synthesis
  • Supercritical fluids

ASJC Scopus subject areas

  • Energy(all)

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