Effect of process conditions on the product distribution of Fischer–Tropsch synthesis over a Re-promoted cobalt-alumina catalyst using a stirred tank slurry reactor Academic Article uri icon

abstract

  • The effects of process conditions on Fischer-Tropsch synthesis (FTS) product distribution were studied using a 1-L stirred tank slurry reactor and a 0.48%Re-25%Co/Al2O3 catalyst. It was found that the chain growth probability of C1 intermediate (α1) has the most dominant effect on CH4 and C5+ selectivity. α1 was found to be highly dependent on process conditions. Relatively constant values of C2+ growth probabilities with reactor residence time, as well as other process variables, suggest that 1-olefin readsorption has a minor effect on product selectivities. A low value of α1 and its different response to variations in process conditions, compared to higher chain growth probabilities, seems to support a hypothesis that a higher-than-expected yield of methane is caused by at least two separate methane formation pathways. Understanding these pathways and ways to suppress excess methane formation is a key factor in obtaining higher C 5+ selectivity. © 2013 Elsevier Inc. All rights reserved.

published proceedings

  • Journal of Catalysis

author list (cited authors)

  • Todic, B., Ma, W., Jacobs, G., Davis, B. H., & Bukur, D. B

citation count

  • 58

complete list of authors

  • Todic, Branislav||Ma, Wenping||Jacobs, Gary||Davis, Burtron H||Bukur, Dragomir B

publication date

  • March 2014