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Title: Selective Conversion of Decane into Branched Isomers - A Comparison of Platinum/ZSM-22, Platinum/ZSM-5 and Platinum USY Zeolite Catalysts
Authors: Martens, Johan ×
Parton, R
Uytterhoeven, L
Jacobs, Pierre
Froment, GF #
Issue Date: 1991
Publisher: ELSEVIER SCIENCE BV
Series Title: Applied catalysis. A: General vol:76 issue:1 pages:95-116
Conference: date:STATE UNIV GHENT,PETROCHEM TECH LAB,B-9000 GHENT,BELGIUM
Abstract: Detailed product distributions from the bifunctional conversion of decane over Pt/ZSM-22, Pt/ZSM-5 and Pt/USY catalysts are compared. In contrast to other zeolites, the product selectivities from decane on Pt/ZSM-22 vary largely with the reaction conditions. Pt/ZSM-22 produces high yields of feed isomers under mild reaction conditions. Molecular graphics suggest that the isomerisation of decane cannot occur entirely inside the micropores of ZSM-22 crystals. It is suggested that isomerisation of decane on ZSM-22 is an example of zeolite pore-mouth catalysis. Type C hydrocracking of methylnonanes (involving beta-scission of secondary into secondary alkylcarbenium ions) does not occur on Pt/ZSM-22, due to the limited access of these molecules in the zeolite pores. Hydrogenolysis on the platinum metal and type D hydrocracking of decane (involving beta-scission of secondary into primary alkylcarbenium ions) account for the formation of cracked products.
ISSN: 0926-860X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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