Kinetic modeling of the slurry phase Fischer-Tropsch synthesis on iron catalysts

Lech Nowicki, Dragomir B. Bukur

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Two different approaches to modeling of hydrocarbon product distribution for Fischer-Tropsch synthesis have been tested using results from experiments conducted under industrially relevant conditions in a slurry reactor on iron catalysts. The first approach (two active site model) is based on the assumption that there are two types of active sites on the catalyst surface: type-1, where primary growth of hydrocarbon intermediates occurs, and type-2, where reversible carbon atom number dependent readsorption of 1-olefins takes place. The readsorbed 1-olefins form alkyl intermediates, CnH2n+1, on the surface, which in turn can participate in several reactions: chain growth propagation, hydrogenation to n-paraffins, and dehydrogenation to 2-olefins. The second approach (one active site model) accounts for secondary readsorption of 1-olefins on type-1 sites only. Model predictions provide information on hydrocarbon product distribution over the wide range (C1 to C50) of carbon numbers, and have been verified in experiments with several iron Fischer-Tropsch catalysts.

Original languageEnglish
Pages (from-to)123-128
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume136
Publication statusPublished - 2001
Externally publishedYes

Fingerprint

Fischer-Tropsch synthesis
Alkenes
alkenes
Olefins
Iron
Hydrocarbons
iron
catalysts
Catalysts
Kinetics
hydrocarbons
kinetics
synthesis
Carbon
carbon
paraffins
Dehydrogenation
products
dehydrogenation
Paraffin

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Kinetic modeling of the slurry phase Fischer-Tropsch synthesis on iron catalysts. / Nowicki, Lech; Bukur, Dragomir B.

In: Studies in Surface Science and Catalysis, Vol. 136, 2001, p. 123-128.

Research output: Contribution to journalArticle

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