Direct use of H2-poor bio-syngas model in Fischer-Tropsch synthesis over un-promoted and rhenium promoted alumina-supported cobalt catalysts

Dewi Tristantini, Sara Lögdberg, Börje Gevert, Oyvind Borg, Anders Holmen

Research output: Contribution to journalConference articlepeer-review

Abstract

H2-poor bio-synthesis gas model consists of H2 and CO of different molar H2/CO-ratios (2.1, 1.5, and 1) were applied for a fixed bed Fischer-Tropsch (FT) reactor over Co/Al2O3 and Co-Re/Al2O3 catalysts. The FT-reaction requires a H2/CO-molar-ratio of ∼ 2.1 above the catalyst surface. For the ratios < 2.1, a water-gas- shift activity is desired to increase the H2/CO-ratio. With lower H2/CO-ratios in the feed, the CO conversion and the CH4 selectivity decreased, while the C5+ selectivity and C3 (olefin/paraffin) ratio were slightly increased. However, the catalysts studied had very low water-gas-shift activities. The Re-promoted was considerably more active and selective to longer hydrocarbons. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original languageEnglish
JournalACS National Meeting Book of Abstracts
Volume231
Publication statusPublished - 28 Jun 2006
Event231th ACS National Meeting - Atlanta, GA, United States
Duration: 26 Mar 200630 Mar 2006

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