Isopropylation of naphthalene over modified-mordenite zeolites

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Title:	Isopropylation of naphthalene over modified-mordenite zeolites
Authors:	Tseng,IM;Wu,JF;Chen,YW
Contributors:	化學工程與材料工程學系
Keywords:	SHAPE-SELECTIVE ALKYLATION
Date:	1998
Issue Date:	2010-06-29 17:29:50 (UTC+8)
Publisher:	中央大學
Abstract:	Isopropylation of naphthalene with propylene was carried out over Ce-, Si-, La-, and Mg-modified mordenite zeolites. The reaction was performed in a 500 mL, batch reactor at 300 degrees C, 8 kg/cm(2), and naphthalene to catalyst weight ratio of 10:1, with excess propylene. It was attempted to eliminate the external acid sites of zeolites by these modifications. The results indicate that the CVD silanation and magnesium or cerium modification with Mg/Al or Ce/Al atomic ratios less than 0.5 can improve the 2,6-DIPN selectivity of mordenites. The improvement of catalyst performance is ascribed to the selective deactivation of acid sites on the external surface of HM zeolites.
Relation:	REACTION KINETICS AND CATALYSIS LETTERS
Appears in Collections:	[National Central University Department of Chemical & Materials Engineering] journal & Dissertation

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