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Fischer–Tropsch Synthesis at High Conversions on Al2O3-Supported Co Catalysts with Different H2/CO Levels

Lillebø, Andreas Helland; Rytter, Erling; Blekkan, Edd Anders; Holmen, Anders
Journal article, Peer reviewed
Accepted version
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URI
http://hdl.handle.net/11250/2480235
Date
2017
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  • Publikasjoner fra CRIStin - NTNU [19849]
Original version
Industrial & Engineering Chemistry Research. 2017, 56 (45), 13281-13286.   10.1021/acs.iecr.7b01801
Abstract
Fischer-Tropsch experiments with different H2/CO ratios at high CO conversions have been carried out over an alumina-supported 20wt%Co-0.5wt%Re catalyst in a stainless steel fixed-bed reactor at 210 oC and 20 bar and with H2/CO ratios between 1.04 and 2.56. The results indicate that for H2/CO ratios above 2.1, CO conversion levels up to at least 85% can be obtained without significant short-term deactivation or loss of selectivity towards heavier hydrocarbons. Except for very low conversion anomalies, the data collapse into a single trendline for selectivity to C5+ products versus average hydrogen partial pressure in the reactor irrespective of the H2/CO feed ratio. The present results are important for development of small scale biomass to liquids plant based on a once-through process concept in order to avoid recycle streams.
Publisher
American Chemical Society
Journal
Industrial & Engineering Chemistry Research

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