文献类型：期刊文献

英文题名：Gas-solid reaction induced particle collision and aggregation

作者：Liu, Ming[1,2];Shen, Zhongjie[1,2];Zhou, Shengyu[1,2];Xu, Jianliang[1,2];Liang, Qinfeng[1,2];Wang, Chi-Hwa[3];Liu, Haifeng[1,2]

机构：[1]East China Univ Sci & Technol, Natl Energy Adm Res Ctr Coal Gasificat Technol &, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China;[3]Natl Univ Singapore, Dept Chem & Biomol Engn, 4 Engn Dr 4, Singapore 117585, Singapore

年份：2022

卷号：237

外文期刊名：COMBUSTION AND FLAME

收录：;EI(收录号：20214911276457);WOS:【SCI-EXPANDED(收录号:WOS:000735740600003)】；

基金：The authors are grateful for the financial support from the National Natural Science Foundation of China Grant No. 21878095 , National Key R&D Program of China Grant No. 2018YFC0808500 and Shanghai Engineering Research Center of Coal Gasification Grant No. 18DZ2283900.

语种：英文

外文关键词：Gas-solid phase flow; Chemical reaction induced; Particle aggregation; Particle collision

摘要：Chemical reaction induced particle collision and aggregations in gas-solid phase reaction were presented in this work. The characteristics of particle collision and aggregations in non-catalytic gas-solid phase reaction-petcoke particles combustion process in air was experimentally analyzed. The reason for the for-mation of different aggregation structures is the reactant concentration distribution and particle position. Different spatial positions of solid particles caused the non-uniform concentration distribution of gaseous reactant and product around particle surface. The non-uniform distribution of gaseous reactant results in cohesive force, which lead to particle collision and aggregations. The aggregates of multi-particles tend to show "I" and "L" structure with the effect of cohesive force and drag force. Simulation work also were conducted to analyze the reactant and product concentrations, release velocity of product and bearing force of solid particles. The mechanisms of different particle aggregation patterns were demonstrated. (c) 2021 The Combustion Institute. Published by Elsevier Inc. All rights reserved.