Journal
JOURNAL OF NATURAL GAS CHEMISTRY
Volume 19, Issue 6, Pages 653-659Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-9953(09)60133-X
Keywords
Fischer-Tropsch synthesis; cobalt catalyst; ruthenium; reaction rate; products distribution
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Hydrocarbon production rates and distributions on ruthenium promoted alumina supported cobalt Fischer-Tropsch synthesis (FTS) catalyst were studied by the concept of two superimposed Anderson-Schulz-Flory (ASF) distributions. The results indicated that the characterizing growth probabilities alpha(1) and alpha(2) were strongly dependent on reaction conditions. By increasing the H(2)/CO partial pressure ratios and reaction temperatures, deviation from normal ASF distribution decreases and the double-alpha-ASF distribution changes into a straight line. Based on the concept of double-alpha-ASF distribution, a useful rate equation for the production of hydrocarbons under industrial reaction conditions is obtained.
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