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dc.contributor.authorAo, M.
dc.contributor.authorPham, Gia
dc.contributor.authorSage, V.
dc.contributor.authorPareek, Vishnu
dc.date.accessioned2017-08-24T02:18:19Z
dc.date.available2017-08-24T02:18:19Z
dc.date.created2017-08-23T07:21:37Z
dc.date.issued2017
dc.identifier.citationAo, M. and Pham, G. and Sage, V. and Pareek, V. 2017. Selectivity enhancement for higher alcohol product in Fischer-Tropsch synthesis over nickel-substituted La0.9Sr0.1CoO3 perovskite catalysts. Fuel. 206: pp. 390-400.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/55339
dc.identifier.doi10.1016/j.fuel.2017.06.036
dc.description.abstract

© 2017 Elsevier Ltd The performance of La 0.9 Sr 0.1 Co 1-x Ni x O 3 perovskite catalysts with different Ni substitution levels was evaluated in the Fischer-Tropsch (F-T) synthesis for higher alcohol production. It was found that Ni substitution improved the catalyst's reducibility and had a positive effect on higher alcohol synthesis (HAS) from syngas. Only a limited amount of Ni ions can enter into the perovskite structure and then form Co-Ni alloy after reduction. Catalyst characterisation and activity test results indicate that the synergistic effects of the two metal species in the Co-Ni are responsible for the catalytic activity improvement. For high Ni-substituted perovskite catalysts (x = 0.5), the extra-lattice Ni segregates on the catalyst surface and promotes CO methanation during the F-T reaction. A significant deviation of methanol selectivity from the Anderson-Schulz-Flory (ASF) linear distribution was detected for catalysts containing both Ni and Co, suggesting that the alcohol formation mechanism is altered with nickel substitution in La 0.9 Sr 0.1 Co 1-x Ni x O 3 perovskite catalysts. The La 0.9 Sr 0.1 Co 0.9 Ni 0.1 O 3 perovskite catalyst exhibited the highest selectivity towards higher alcohols. The effect of reaction temperature on the catalytic activity is also discussed.

dc.publisherElsevier Ltd
dc.titleSelectivity enhancement for higher alcohol product in Fischer-Tropsch synthesis over nickel-substituted La0.9Sr0.1CoO3 perovskite catalysts
dc.typeJournal Article
dcterms.source.volume206
dcterms.source.startPage390
dcterms.source.endPage400
dcterms.source.issn0016-2361
dcterms.source.titleFuel
curtin.departmentDepartment of Chemical Engineering
curtin.accessStatusFulltext not available


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