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Reaction Kinetics, Mechanisms and Catalysis

, Volume 126, Issue 2, pp 963–973 | Cite as

Attempt to yield light hydrocarbons including C3 fraction by supplying ethene and syngas on Co/SiO2 catalyst

  • Takashi SuzukiEmail author
  • Eri Murakami
  • Kento Takahashi
Article
  • 53 Downloads

Abstract

When a 1:2 gas mixture of CO and H2, namely syngas, was contacted onto Co/SiO2 catalyst at 513 K with low pressure such as 0.2 kg/cm2, G, methanation was preferentially promoted, whereas chain propagation was suppressed. In contrast to this, when 1:3 gas mixture of ethene and syngas was fed onto Co/SiO2 catalyst under the same conditions, hourly productivity of light hydrocarbons involving C3 fraction was increased 3.3-fold as much as that in the case flowing syngas alone at that condition. It was deduced that formation of light hydrocarbon like C3 was caused by capturing methylidene (=CH2) species by ethene on Co/SiO2 catalyst on which reverse metathesis (C2H4 + 2-C4H8 → 2C3H6) following the dimerization of ethene was not concerned with C3 formation. In addition, a small amount of liquefied hydrocarbons was collected despite the low pressure and chain growth probability (α) was presumed 0.73. It might be suggested that co-feeding ethene and syngas onto FT active catalyst like Co/SiO2 was one of effective methods to obtain light hydrocarbons including C3 fraction at low pressure.

Keywords

FT synthesis Low pressure Ethene Co/SiO2 catalyst Petrochemical 

Notes

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Gunma Prefectural Industrial Technology CenterMaebashi CityJapan
  2. 2.R & D Section of Town Gas and Energy ProvidingKiryu Gas Co. Ltd.Kiryu CityJapan

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