The mathematical catalyst deactivation models: a mini review

被引:11
|
作者
Shakor, Zaidoon M. [1 ]
Al-Shafei, Emad N. [2 ]
机构
[1] Univ Technol Baghdad, Chem Engn Dept, Baghdad, Iraq
[2] Saudi Aramco, Res & Dev Ctr, Dhahran 31311, Saudi Arabia
关键词
FISCHER-TROPSCH SYNTHESIS; FIXED-BED REACTOR; KINETIC-MODEL; PROPANE DEHYDROGENATION; METHANOL SYNTHESIS; COKE FORMATION; ALUMINA CATALYST; DIMETHYL ETHER; BIO-OIL; CRACKING;
D O I
10.1039/d3ra02912c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Catalyst deactivation is a complex phenomenon and identifying an appropriate deactivation model is a key effort in the catalytic industry and plays a significant role in catalyst design. Accurate determination of the catalyst deactivation model is essential for optimizing the catalytic process. Different mechanisms of catalyst deactivation by coke and metal deposition lead to different deactivation models for catalyst activity decay. In the rigorous mathematical models of the reactors, the reaction kinetics were coupled with the deactivation kinetic equation to evaluate the product distribution with respect to conversion time. Finally, selective and nonselective deactivation kinetic models were designed to identify catalyst deactivation through the propagation of heterogeneous chemical reactions. Therefore, the present review discusses the catalyst deactivation models designed for CO2 hydrogenation, Fischer-Tropsch, biofuels and fossil fuels, which can facilitate the efforts to better represent the catalyst activities in various catalytic systems.
引用
收藏
页码:22579 / 22592
页数:14
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