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Influence of the generation of mesopores on the hydroisomerization activity and selectivity of n-hexane over Pt/mordenite

Influence of the generation of mesopores on the hydroisomerization activity and selectivity of n-hexane over Pt/mordenite
Influence of the generation of mesopores on the hydroisomerization activity and selectivity of n-hexane over Pt/mordenite
The activity and selectivity of hydroisomerization of n-hexane over Pt/mordenite is strongly influenced by acid leaching. The activity increases and the selectivity changes to favor primary products. Leaching selectively modifies the mordenite structure, making more sites accessible for reaction and facilitating desorption of reaction products. It is argued that the activity of untreated mordenite is limited by mass transfer effects. These effects largely vanish after modification of the zeolite structure by generation of a 3-D micropore structure as well as mesopores. The alleviation of intracrystalline diffusion limitation is the major factor in activity enhancement after acid leaching of Pt/mordenite.
Pt, hydroisomerisation, n-hexane, catalysis, mordenite
0021-9517
209-214
Tromp, M.
48c1ebbb-579c-42b6-83bb-7188c668b322
van Bokhoven, J.A.
ed49a36e-7a29-4968-9e68-9739abdcc101
Garriga Oostenbrink, M.T.
0d36a7bf-cc5d-4459-bb2c-c6efeb3c12d6
Bitter, J.H.
836686cb-a48b-40f2-b243-e4c74a91c36e
de Jong, K.P.
2461af5c-2987-4d12-a215-ed6a2a80e120
Koninsgberger, D.C.
bd87bf00-a52d-4cfd-b58c-3d59f05902e8
Tromp, M.
48c1ebbb-579c-42b6-83bb-7188c668b322
van Bokhoven, J.A.
ed49a36e-7a29-4968-9e68-9739abdcc101
Garriga Oostenbrink, M.T.
0d36a7bf-cc5d-4459-bb2c-c6efeb3c12d6
Bitter, J.H.
836686cb-a48b-40f2-b243-e4c74a91c36e
de Jong, K.P.
2461af5c-2987-4d12-a215-ed6a2a80e120
Koninsgberger, D.C.
bd87bf00-a52d-4cfd-b58c-3d59f05902e8

Tromp, M., van Bokhoven, J.A., Garriga Oostenbrink, M.T., Bitter, J.H., de Jong, K.P. and Koninsgberger, D.C. (2000) Influence of the generation of mesopores on the hydroisomerization activity and selectivity of n-hexane over Pt/mordenite. Journal of Catalysis, 190 (2), 209-214. (doi:10.1006/jcat.1999.2778).

Record type: Article

Abstract

The activity and selectivity of hydroisomerization of n-hexane over Pt/mordenite is strongly influenced by acid leaching. The activity increases and the selectivity changes to favor primary products. Leaching selectively modifies the mordenite structure, making more sites accessible for reaction and facilitating desorption of reaction products. It is argued that the activity of untreated mordenite is limited by mass transfer effects. These effects largely vanish after modification of the zeolite structure by generation of a 3-D micropore structure as well as mesopores. The alleviation of intracrystalline diffusion limitation is the major factor in activity enhancement after acid leaching of Pt/mordenite.

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More information

Submitted date: 9 December 1999
Published date: 2000
Additional Information: Priority communication
Keywords: Pt, hydroisomerisation, n-hexane, catalysis, mordenite

Identifiers

Local EPrints ID: 46478
URI: http://eprints.soton.ac.uk/id/eprint/46478
ISSN: 0021-9517
PURE UUID: ae3fe5b5-0730-43da-8410-aa03577d2244

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Date deposited: 02 Jul 2007
Last modified: 14 Aug 2019 17:47

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