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Modified product selectivity in Fischer-Tropsch synthesis by catalyst pre-treatment Sage, V, Sun, Y, Hazewinkel, P, Bhatelia, T, Braconnier, L, Tang, L, Chiang, K, Batten, M and Burke, N 2017, 'Modified product selectivity in Fischer-Tropsch synthesis by catalyst pre-treatment', Fuel Processing Technology, vol. 167, pp. 183-192. Document type: Journal Article Collection: Journal Articles Title Modified product selectivity in Fischer-Tropsch synthesis by catalyst pre-treatment Author(s) Sage, V Sun, Y Hazewinkel, P Bhatelia, T Braconnier, L Tang, L Chiang, K Batten, M Burke, N Year 2017 Journal name Fuel Processing Technology Volume number 167 Start page 183 End page 192 Total pages 10 Publisher Elsevier BV Abstract Fischer-Tropsch Synthesis (FTS) yields a spectrum of products with carbon lengths of 1 to upwards of 100 units. In order to make use of the full spectrum of hydrocarbon fractions, particularly the heavier units, secondary processing is required. Modifying the FTS product distribution and catalyst activity in order to decrease the amount of long chain hydrocarbons (C 25 + ) may allow significant simplification of FTS based processes. To this end we report the results of in-situ pre-treatment of alumina supported cobalt catalysts (Co/Ru/La - Al 2 O 3 ) with acetylene in a fixed-bed reactor. It is postulated that acetylene dissociation and dehydrogenation resulted in the generation of carbidic and C x H y species on the catalyst surface. The formation of these carbonaceous species on different active sites of the catalyst surface following pre-treatment also significantly altered the FTS product distribution by affecting the extent and pathway of 1-olefin secondary reactions. It is thought that these changes resulted from decreased incorporation of 1-olefins in further chain growth and a decrease in secondary hydrogenation rate. The amount of heavy hydrocarbons (waxes) produced was reduced by more than two-fold. Subject Functional Materials Catalytic Process Engineering Keyword(s) Acetylene ASF product distribution Fischer-Tropsch synthesis Olefin hydrogenation Pre-treatment Process intensification Secondary reactions Wax-free products DOI - identifier 10.1016/j.fuproc.2017.07.002 Copyright notice Crown Copyright © 2017 Published by Elsevier B.V. All rights reserved. ISSN 0378-3820 Related Links Link Description https://dx.doi.org/10.1016/j.fuproc.2017.07.002 Link to Published Version   Versions Version Filter Type Tue, 26 Mar 2019, 14:32:44 EST Filtered Full Citation counts:   Cited 9 times in Thomson Reuters Web of Science Article | Citations Cited 0 times in Scopus Article Altmetric details: Access Statistics: 32 Abstract Views  -  Detailed Statistics Created: Tue, 26 Mar 2019, 09:36:00 EST by Catalyst Administrator