Heterogeneous reaction model for FCC riser units

被引：26
|
作者：
Martignoni, W
de Lasa, HI [1 ]
机构：
[1] Univ Western Ontario, CREC, London, ON N6A 5B9, Canada
[2] Petrobras Six, Sao Pateus Sul, PR, Brazil
来源：
CHEMICAL ENGINEERING SCIENCE | 2001年 / 56卷 / 02期
关键词：
D O I：
10.1016/S0009-2509(00)00266-9
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A mathematical model is considered to describe the importance of the adsorption of hydrocarbon species in FCC risers. Results show that both the hydrodynamics and the reaction kinetics are strongly influenced by adsorption phenomena. Vapor exit velocities based on pseudo-homogeneous models (no adsorption included) are significantly larger, about 2 times, than gas velocities calculated with the heterogeneous model (adsorption included). The proposed heterogeneous reaction model also predicts increases in catalyst and vapor residence times and consequently higher gas oil conversions. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：605 / 612
页数：8
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