Highly active and stable iron Fischer-Tropsch catalyst for synthesis gas conversion to liquid fuels

Dragomir B. Bukur, Xiaosu Lang

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

A precipitated iron Fischer-Tropsch (F-T) catalyst (100 Fe/3 Cu/4 K/16 SiO2 on mass basis) was tested in a stirred tank slurry reactor under reaction conditions representative of industrial practice using CO-rich synthesis gas (260 °C, 1.5-2.2 MPa, H2/CO = 2/3). Repeatability of performance and reproducibility of catalyst preparation procedure were successfully demonstrated on a laboratory scale. Catalyst productivity was increased by operating at higher synthesis pressure while maintaining a constant contact time in the reactor and through the use of different catalyst pretreatment procedures. In one of the tests (run SA-2186), the catalyst productivity was 0.86 (g hydrocarbons/g Fe/h) at syngas conversion of 79%, methane selectivity of 3% (weight percent of total hydrocarbons produced), and C5+ hydrocarbon selectivity of 83 wt %. This represents a substantial improvement in productivity in comparison to state-of-the-art iron F-T catalysts. This catalyst is ideally suited for production of high- quality diesel fuels and C2-C4 olefins from a coal-derived synthesis gas.

Original languageEnglish
Pages (from-to)3270-3275
Number of pages6
JournalIndustrial and Engineering Chemistry Research
Volume38
Issue number9
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Synthesis gas
Liquid fuels
Iron
catalyst
iron
Catalysts
liquid
gas
Hydrocarbons
Productivity
Carbon Monoxide
hydrocarbon
productivity
industrial practice
Coal
Methane
Alkenes
Diesel fuels
Olefins
slurry

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

Cite this

Highly active and stable iron Fischer-Tropsch catalyst for synthesis gas conversion to liquid fuels. / Bukur, Dragomir B.; Lang, Xiaosu.

In: Industrial and Engineering Chemistry Research, Vol. 38, No. 9, 1999, p. 3270-3275.

Research output: Contribution to journalArticle

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