Performance Study of DMT Hydrogenation Reactor Based on CFD Simulation Combining with Aspen
LIU Wenxin1,2, YONG Yumei2, CHEN Wenqiang2,3, DAI Jialin2,3, LI Menghui2,4, YANG Chao2,3
1. School of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 211800, China;
2. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
3. School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
4. College of Environment and Chemical Engineering, Dalian University, Dalian 116622, China
Abstract：To accurately describe the performance of the dimethyl terephthalate (DMT) hydrogenation reactor, this paper simulated the gas-liquid flow, species mass and heat transfer and reaction processes for DMT hydrogenation by combing Aspen with computational fluid dynamics (CFD). The DMT hydrogenation reaction model and thermal property correlations were got by Aspen. After verifying the reaction kinetic model, the model thermal property correlations were introduced into CFD simulation by user-defined functions. The multiphase flow, component transfer, and reaction processes in the DMT hydrogenation reactor bed were simulated and the numerical results were in good agreement with the results of design calculation, which indicated that the model and method were reliable. Based on the validated CFD multiphase multi-component mathematical models, the distribution laws of catalyst particle diameter, hydrogen-dimethyl molar ratio on bed temperature, pressure drop, and components were explored. The performance of hydrogenation reactors for DMT is mastered and the results serve for the engineering design.
LIU Wenxin,YONG Yumei,CHEN Wenqiang et al. Performance Study of DMT Hydrogenation Reactor Based on CFD Simulation Combining with Aspen[J]. Chemical Reaction Engineering and Technology, 2025, 41(1): 155-162.
