Effect of cobalt catalyst type and reaction medium on Fischer-Tropsch synthesis

Chul Ung Kim, You Sung Kim, Ho Jeong Chae, Kwang Eun Jeong, Soon Yong Jeong, Ki Won Jun, Kwan Young Lee

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

This study covers the performance of five cobalt-based catalytic systems with different support characteristics in Fisher-Tropsch synthesis (FTS) under conventional gas-phase using syngas, and the manner in which the reaction medium is influenced by the addition of solvents such as n-hexane and squalane has been also investigated. The reaction was conducted in a fixed bed high-pressure FTS reactor setup at a reaction temperature of 220 °C to 260 °C. In terms of the effect of the reaction medium, higher CO conversion was obtained in gas phase reaction, whereas the olefin selectivity was higher in n-hexane medium than in gas phase and squalane medium. In addition, the undesired production of CH4 and CO2 was relatively reduced in solvent addition compared to the gas phase FTS. The reaction performance was also compared according to the type of catalyst. CO conversion by type of catalyst decreased in the following order: 20% Co/SiO2>20% Co/Al2O3>20% Co/HAS>20% Co/Si-MMS>20% Co/TiO2. However, the C5+ content of products was little affected by catalyst supports.

Original languageEnglish
Pages (from-to)777-784
Number of pages8
JournalKorean Journal of Chemical Engineering
Volume27
Issue number3
DOIs
Publication statusPublished - 2010

Keywords

  • Cobalt Catalyst
  • Fischer-Tropsch
  • Gas Phase
  • N-Hexane
  • Reaction Medium
  • Squalane

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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