Thermolysis of alkyl aryl ethers catalysed by HZSM-5, P-HZSM-5, H-Theta-1, H-Y and H-Mordenite zeolites

Mordi, Raphael C. and Fields, Roy and Dwyer, John (1994) Thermolysis of alkyl aryl ethers catalysed by HZSM-5, P-HZSM-5, H-Theta-1, H-Y and H-Mordenite zeolites. Journal of Molecular Catalysis, 92 (1). pp. 51-65.

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Abstract

The thermolysis of anisole and phenetole under flow and batch conditions was examined over zeolites (HZSM-5, P-HZSM-5, H-Theta-1, H-Y and H-mordenite). The major components of the product mixture were phenol, the rearranged products (cresols and ethylphenols) and alkylated substrates (methylanisoles and ethylphenetoles). All the zeolites showed ortho selectivity in cresols and ethylphenols while the medium-pore zeolites (HZSM-5, P-HZSM-5 and H-Theta-1) showed para selectivity in methylanisoles and ethylphenetoles in contrast to the large-pore zeolites (HY and HM) which showed ortho selectivity. The observed selectivities are thought to be due to both kinetic effects (diffusion) and transition state selectivity over these zeolites.

Item Type:	Article
Uncontrolled Keywords:	Alkyl aryl ethers; Anisole; Phenetole; Thermolyses; Zeolites Recommended articles Citing articles (3) Corresponding author.
Subjects:	Q Science > QD Chemistry
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	24 Nov 2015 13:28
Last Modified:	24 Nov 2015 13:28
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/5663

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