Journal
FUEL PROCESSING TECHNOLOGY
Volume 73, Issue 3, Pages 197-222Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-3820(01)00199-0
Keywords
modified Fischer-Tropsch synthesis; C-4 and iso-C-4 hydrocarbons; sulfated-ZrO2 catalyst; follow bed reactor
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Fischer-Tropsch synthesis was performed in a fixed-bed microreactor over a single bed consisting of Co-Ni-ZrO2 catalyst as well as over a follow bed configuration consisting of Co-Ni-ZrO2 and sulfated-ZrO2 catalyst beds for the selective production of C-4 hydrocarbons. A maximum C-4 hydrocarbon selectivity of 14.6 wt.% was obtained using the single bed approach at 250 degreesC and weight hourly space velocities (WHSV) of 15 h(-1). When a follow bed approach was used, there was an impressive increase in the selectivity for C-4 hydrocarbons to a maximum of 24 wt.% and that for iso-C-4 hydrocarbons to a maximum of 13.8 wt.% from 14.6 and 5.5 wt.%, respectively. However, there was a rapid deactivation of the sulfated-ZrO2 catalyst due to coking and sulfate reduction. (C) 2001 Elsevier Science B.V. All rights reserved.
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