文献类型：期刊文献

英文题名：COMPREHENSIVE CFD SIMULATION OF THE OPTIMIZATIONS OF GEOMETRIC STRUCTURES AND OPERATING PARAMETERS FOR INDUSTRIAL ACETYLENE HYDROGENATION REACTORS

作者：Tian, Liang[2,3];Hu, Guihua[1,2];Du, Wenli[1,2];Qian, Feng[1,2]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Informat Sci & Engn, Shanghai 200237, Peoples R China;[3]Shanghai Petrochem Co Ltd, Shanghai 200540, Peoples R China

年份：2016

卷号：94

期号：12

起止页码：2427

外文期刊名：CANADIAN JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20164402972170);WOS:【SCI-EXPANDED(收录号:WOS:000389338700022)】；

基金：This study is supported by National Key Scientific and Technical Project of China (2015BAF22B02) and National Natural Science Foundation of China (61422303).

语种：英文

外文关键词：hydrogenation reactors; computational fluid dynamics; acetylene selectivity; optimization

摘要：In this study, for the first time, comprehensive simulations of the industrial adiabatic and isothermal reactors utilized for the hydrogenation of acetylene were performed by computational fluid dynamics (CFD). The standard k-epsilon and Spalart-Allmaras models were employed for describing the turbulence characteristics of the adiabatic and isothermal reactors, respectively. The porous medium model was applied to the flow of catalyst particles. The laminar finite-rate model was employed for simulating the reaction in the reactor. The results obtained from simulations were in close agreement with those obtained from the industrial adiabatic reactor. Based on the validated CFD models, three operating conditions of the adiabatic reactor are simulated for comparing the selectivity of acetylene; as a result, H and T segmentation is utilized as an optimum process parameter. The different geometric structures of the adiabatic and isothermal reactors are simulated for obtaining the best diameter to length (D/L) ratio. The simulation results indicated an optimal D/L of 0.3852 for the adiabatic reactor, and the diameter-to-length ratio exerts a marginal effect on the reaction selectivity of isothermal reactors.