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Effect of alkaline earth metals on catalytic performance of HY zeolite for alkylation of α-methylnaphthalene with long-chain olefins by Zhongkui Zhao; Weihong Qiao; Xiuna Wang; Guiru Wang; Zongshi Li; Lübo Cheng is a Materials Science article available to read on EtoBox.

What is Effect of alkaline earth metals on catalytic performance of HY zeolite for alkylation of α-methylnaphthalene with long-chain olefins about?

Friedel-Crafts alkylations of a-methylnaphthalene with long chain alkenes (C 11-12 ) in liquid-solid phase over alkaline earth metal oxides like MgO, CaO, SrO and BaO modified HY zeolite catalysts have been investigated. Effect of BaO impregnated amount on the reaction was investigated. Results show that 1%BaO modified HY zeolite (1%BaO-HY) exhibits outstanding catalytic performances, and the stability of catalyst may be improved when modified by optimal alkaline earth metal oxide. Moreover, effects of reaction conditions like reaction temperature, volume hour space velocity (VHSV) and time on stream (TOS) on the 1%BaO-HY promoted alkylation were also studied. It is found that Bro ̈nsted acid centre is the main catalytic active centre, and Lewis acidic sites have an obvious promotion effect on reaction performance for the alkylation reaction.

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Author

Zhongkui Zhao; Weihong Qiao; Xiuna Wang; Guiru Wang; Zongshi Li; Lübo Cheng

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1387-1811)

Published

2006

Language

EN

Field

Materials Science (Physical Sciences)