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SYNTHESIS OF LIGHT ALKENES FROM SYNGAS ON SILICALITE-1 SUPPORTED COBALT AND COBALT-MANGANESE CATALYSTS

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Title SYNTHESIS OF LIGHT ALKENES FROM SYNGAS ON SILICALITE-1 SUPPORTED COBALT AND COBALT-MANGANESE CATALYSTS
 
Creator DAS, D
RAVICHANDRAN, G
CHAKRABARTY, DK
 
Subject carbon-monoxide
oxide catalysts
tropsch
hydrogenation
hydrocarbons
co
reduction
clusters
fischer-tropsch synthesis
co hydrogenation
light alkenes
cobalt and cobalt-manganese catalysts
silicalite-1
 
Description Fischer-Tropsch synthesis of lower hydrocarbons on silicalite-1 supported cobalt and cobalt-manganese catalysts is reported. The catalysts were prepared by impregnating the calcined support with the corresponding metal nitrate solutions. Co3O4 was found to be the only phase present in the manganese free catalyst, while addition of manganese favoured the formation of the mixed spinel (Co1-xMnx)(3)O-4 phase. Addition of manganese decreased the reduction temperature of Co3O4 and also presumably reduced its particle size. The catalysts showed good activity and selectivity for light hydrocarbons in the C-2-C-4 range, particularly propene and also showed very low water gas shift activity. Addition of manganese increased CO conversion rate at 250 degrees C. The alkene selectivity of the Co/Sil catalyst decreased slightly by the addition of manganese.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-26T23:16:49Z
2011-12-26T12:52:34Z
2011-12-27T05:38:51Z
2011-07-26T23:16:49Z
2011-12-26T12:52:34Z
2011-12-27T05:38:51Z
1995
 
Type Article
 
Identifier APPLIED CATALYSIS A-GENERAL, 131(2), 335-345
0926-860X
http://dx.doi.org/10.1016/0926-860X(95)00141-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7044
http://hdl.handle.net/10054/7044
 
Language en