文献类型：期刊文献

英文题名：Numerical simulation of micromixing effect on the reactive flow in a co-rotating twin screw extruder

作者：Tang, Hao[1];Zong, Yuan[1];Zhao, Ling[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：24

期号：9

起止页码：1135

外文期刊名：CHINESE JOURNAL OF CHEMICAL ENGINEERING

收录：;EI(收录号：20162802590555);WOS:【SCI-EXPANDED(收录号:WOS:000387583600003)】；

基金：Supported by National Program on Key Basic Research Project (2011CB606100) and the National Natural Science Foundation of China (21406059).

语种：英文

外文关键词：Multicomponent reaction; Mixing; Numerical simulation; Extrusion

摘要：To control the multicomponent reactions in extrusion, reactive-mixing flow in a co-rotating twin screw extruder was numerically studied in the present paper. Effects of initial species distribution, rotating speed and flow rate on a competitive-parallel reaction were investigated and the relationship between mixing and reactions was discussed from the view of chemical reaction engineering. The simulation results show the studied operational parameters, which determine residence time distribution, earliness of mixing and segregation degree of reactive-mixing flows, affect the local species concentration and reaction time and hence have significant influences on the reaction extent. Orthogonal test was adopted to clarify the significance of operational parameters. The analysis shows that initial species distribution and flow rate are the most important factors in the control of reaction extent, and effect of rotating speed is conditional depending on the micro-mixing status of the fluid. (C) 2016 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.