三叶草型催化剂体相温度分布数值模拟

Numerical Simulation about Bulk Temperature Distribution of Clover-Type Catalyst

1.辽宁石油化工大学 理学院,辽宁 抚顺 113001; 2.抚顺石油化工研究院,辽宁 抚顺 113001

1.College of Science,Liao ning Shihua University,Fu shun Liao ning 113001,China; 2.Fushun Research Institute of Petroleum and Petrochemical,Fushun Liaoning 113001,China

关键词: 加氢裂化, , 传热, , 无网格, , 数值模拟, , 分布计算

Based on three-dimensional somatic environment of the real clover type hydrocracking catalyst as the computational entity and the simulated industrial operating temperature as the boundary condition. The Fourier heat transfer equation is solved by the meshless numerical method. Then the influence of external temperature fluctuation on the internal temperature distribution of the catalyst was analyzed by using the calculated results. The analysis results show that the actual reactions in the catalyst is not isothermal reaction. At the same time, the fluctuation of the reaction temperature and the hot spot inside the catalyst have a certain influence on the temperature distribution for the catalyst cluster in the hydrocracking process. Catalyst bulk phase inner average temperature is influenced by heat of reaction, the catalyst particle size, material density, reaction space velocity and catalyst inner hotspot distribution.

中国石油化工股份有限公司项目(011308)。

10.3969/j.issn.1672-6952.2017.02.003