Characterization of shape selective properties of zeolites via hydroisomerization of n-hexane

被引：34

作者：

Chen, C. Y. ^{[1
]}

Ouyang, X. ^{[1
]}

Zones, S. I. ^{[1
]}

Banach, S. A. ^{[1
]}

Elomari, S. A. ^{[1
]}

Davis, T. M. ^{[1
]}

Ojo, A. F. ^{[1
]}

机构：

[1] Chevron Energy Technol Co, Richmond, CA 94802 USA

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2012年 / 164卷

关键词：

Zeolites; Hydroisomerization of n-hexane; Shape selectivities; PRIMARY HYDROCRACKING MODES; LONG-CHAIN PARAFFINS; EFFECTIVE PORE WIDTH; CATALYTIC-PROPERTIES; INTERSECTING MEDIUM; SPACIOUSNESS INDEX; MOLECULAR-SIEVES; BASE CATALYSIS; VOID STRUCTURE; NORMAL-DECANE;

D O I：

10.1016/j.micromeso.2012.07.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this work we use the hydroisomerization of n-hexane as a catalytic test reaction to investigate the shape selective properties of a series of zeolites (mordenite, V. ZSM-5, ZSM-12, TNU-9, SSZ-25, SSZ-26, SSZ-32, SSZ-33, SSZ-56, SSZ-57 and SSZ-75). The yield ratio of mono-branched isomers (2- and 3-methylpentane) to di-branched isomers (2,2- and 2,3-dimethylbutane) and the yield ratio of 2,3- to 2,2-dimethylbutane provide a useful tool for characterizing the effective pore sizes of zeolites. The high octane isomer 2,3-dimethylbutane (RON 101.0) can be selectively produced over 2,2-dimethylbutane (RON 91.8) by choosing zeolites (e.g., TNU-9 and SSZ-75) which have the appropriate pore sizes, demonstrating some new examples of the shape selectivities of zeolite catalysis. This catalytic test reaction is complementary to the vapor phase hydrocarbon adsorption for the investigation of the shape selective properties and effective pore sizes of zeolites. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：71 / 81

页数：11

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