Can macroscopic parameters, such as conversion and selectivity, distinguish between different cracking mechanisms on acid catalysts?

被引：19

作者：

Corma, A

Miguel, PJ

Orchilles, AV

机构：

[1] Univ Politecn Valencia, CSIC, Inst Tecnol Quim, Valencia 46022, Spain

[2] Univ Valencia, Dept Engn Quim, E-46100 Burjassot, Spain

来源：

JOURNAL OF CATALYSIS | 1997年 / 172卷 / 02期

关键词：

D O I：

10.1006/jcat.1997.1876

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

n-heptane cracking has been carried out for very short time periods on an established reaction mechanism which includes the following group of stream reactions on different zeolites: Initiation reactions (protolytic cracking), charge isomerization, chain isomerization, hydride transfer, beta-scission-alkylation, desorption-adsorption, and hydrogen transfer-cyclization. It has been observed that a given experimental distribution of products can be explained by more than just one reaction scheme. This does not allow one to clearly distinguish the fraction of reactant which disappears via monomolecular initiation reactions with respect to bimolecular hydride transfer reactions. (C) 1997 Academic Press.

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收藏

页码：355 / 369

页数：15

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