Comparative study on liquid phase alkylation of 2-methylnaphthalene with long chain olefins using different solid acid catalysts

TitleComparative study on liquid phase alkylation of 2-methylnaphthalene with long chain olefins using different solid acid catalysts
Publication TypeJournal Article
Year of Publication2009
AuthorsLucas, N, Bordoloi, A, Amrute, AP, Kasinathan, P, Vinu, A, Bohringer, W, Fletcher, JCQ, Halligudi, SB
JournalApplied Catalysis A-General
Volume352
Issue1-2
Pagination74-80
Date PublishedJAN
ISSN0926-860X
Keywords2-Methylnaphthalene, Alkylation, Long chain olefins, Zirconia
Abstract

A comparative study has been made over a variety of solid acid catalysts, which include isopoly and heteropoly ions supported on various supports such as zirconia, titania, a large variety of zeolites and a couple of mesoporous materials for liquid phasealkylation of 2-methylnaphthalene with 1-octene.All the catalyst systems were characterized by nitrogen sorption analysis, X-ray diffraction and NH(3)-TPD. Inspite of their high acid amounts zeolites gave poor catalytic performance due to their diffusional constraints; on the other hand mesoporous materials lacked diffusional constraints but due to their low acid amounts resulted in poor conversions. lsopoly and heteropoly ions supported on zirconia and titania were found to be catalytically active for the reaction due to total surface acidity. Among them, isopolytungstate supported on zirconia exhibited the best catalytic activity and was used for further optimization of reaction conditions. Excellent conversions of all olefins (>92%) with high selectivity of monoalkylmethylnaphthalene (>95%) was obtained under optimized reaction conditions. The catalyst could be recycled for several times without any obvious loss of its activity. (C) 2008 Elsevier B.V. All rights reserved.

DOI10.1016/j.apcata.2008.09.032
Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.383
Divison category: 
Catalysis and Inorganic Chemistry