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Initial transient rates and selectivities of Fischer-Tropsch synthesis with CO2as carbon source

Authors
Publisher
Elsevier Science & Technology
Identifiers
DOI: 10.1016/s0167-2991(98)80737-4
Disciplines
  • Chemistry

Abstract

Initial transient changes of conversion and selectivity during Fischer-Tropsch synthesis with a potassium-promoted iron catalyst with H2 /CO2 and H2 /CO syngases were determined and several episodes of catalyst transformation distinguished. Selectivity changes are related to changes in elemental reaction steps probabilities using the model of “non trivial surface polymerization”. With the H2 /CO2 syngas the catalyst transformation episodes are extended to about one week. Transient episodes are discussed as for compositional and structural catalyst changes and related Fischer-Tropsch surface chemistry.

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