Catalytic activity of synthetic saponite clays: effects of tetrahedral and octahedral composition

Vogels, R.J.M.J. and Kloprogge, J. Theo and Geus, John W. (2005) Catalytic activity of synthetic saponite clays: effects of tetrahedral and octahedral composition. Journal of Catalysis, 231(2). pp. 443-452.

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DOI : 10.1016/j.jcat.2005.02.004

Abstract

This paper describes the catalytic characteristics of synthetic saponites with well-known chemical composition, thermal stability and acidity in three catalytic reactions: 1) catalytic cracking of n-dodecane, 2) hydro-isomerization of n-heptane and 3) Friedel-Crafts alkylation of benzene. Saponites with Mg in the octahedral position was by far the best catalyst for the catalytic cracking of n-dodecane, which can be explained by the higher surface area of these saponites compared to saponites with other compositions. All saponites performed better in the hydro-isomerization reaction of n-heptane and Friedel-Crafts alkylation compared to commercially available catalysts such as HZSM-5 and ASA. The shape selectivity in the Friedel-Crafts alkylation of benzene towards p- and o-DIOPB was remarkably high for the synthetic saponites

ID Code:	1277
Item Type:	Journal Article
Keywords :	clay, saponite, catalytic cracking, Friedel, Crafts alkylation, hydro, isomerization, selectivity
ISSN:	0021-9517
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions:	QUT Faculties and Divisions > Faculty of Science
Copyright Owner :	Copyright 2005 Elsevier
Copyright Statement :	Reproduced in accordance with the copyright policy of the publisher.
Deposited On:	18 Oct 2005
Last Modified:	03 Dec 2008 12:29

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