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Catalytic conversion of 1,2,4-trimethylbenzene in a CREC riser simulator. A heterogeneous model with adsorption and reaction phenomena

被引：40
作者：
Atias, JA
Tonetto, G
de Lasa, H [1 ]
机构：
[1] Univ Western Ontario, CREC, Fac Engn, London, ON N6A 5B9, Canada
[2] Univ Simon Bolivar, Dept Termodinam & Fenomenos Transferencia, Caracas, Venezuela
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2003年 / 42卷 / 18期
关键词：
D O I：
10.1021/ie0300878
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The aim of the present work is the development of a heterogeneous kinetic model for the isomerization and disproportionation of 1,2,4-TMB. With this end, experiments are conducted in a novel CREC riser simulator loaded with an FCC catalyst. FCC catalysts were prepared using HY zeolites having different crystallite sizes, namely,0.4 and 0.9 mum. The observed distributions of products are reviewed considering potential shape-selectivity effects and hindered diffusion of products. The adopted modeling strategy allows for the calculation, with little ambiguity, of adsorption constants; heats of adsorption; and kinetic constants, such as energies of activation and preexponential factors.
引用
收藏
页码：4162 / 4173
页数：12
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