Catalyst particle impact wall of finite element analysis

LIU Dong-yu, ZHOU Di-feng

(Key Laboratory of Special Purpose Equipment and Advanced Processing Technology,

Zhejiang University of Technology, Hangzhou 310032, China)

Abstract: Aiming at the problem of catalyst running loss in the process of catalytic cracking, a finite element model that a single particle of catalyst impact wall was established, and Abaqus was used as preprocessor. Catalyst particle is typical brittle material, the correct model of the material was established. The process that different parameters(impact form, incidence rate, incidence angle) of the catalyst particle impact wall was simulated, the relationship between quality of catalyst particle loss and the parameters of the catalyst particle was built, and the calculation results were analyzed. Finally, according to the calculation results, the parameters of the catalyst particle were optimized, and the measure of reduing catalyst running loss was put forward. The results indicate that the parameters of the catalyst particle affect the wear loss of catalyst particle, the wear loss of catalyst particle increases with the increased of impact velocity and angles. The wear loss of catalyst particle is the minimum when catalyst particle impact the wall as an angle of 45 degrees. 

Key words: catalyst particles; finite element method; wear loss; Abaqus