文献类型：期刊文献

英文题名：Experimental study of particle evolution characteristics below the burner plane in an impinging entrained-flow gasifier

作者：Wu, Xiaoxiang[1];Gong, Yan[1];Guo, Qinghua[1];Lu, Hantao[1];Yu, Guangsuo[1,2]

机构：[1]East China Univ Sci & Technol, POB 272, Shanghai 200237, Peoples R China;[2]Ningxia Univ, State Key Lab High Efficiency Coal Utilizat & Gre, Yinchuan 750021, Ningxia, Peoples R China

年份：2022

卷号：251

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20220511559854);WOS:【SCI-EXPANDED(收录号:WOS:000779473500009)】；

基金：Acknowledgments This work has been supported by the Project of Key Research Plan of Ningxia (2019BCH01001) , Shanghai Rising-Star Program (21QA1402300) and the National Natural Science Foundation of China (21878093, 21878094) . The Zhejiang Provincial Department of Science and Technology is also acknowledged for this research under its Provincial Key Laboratory Programme (2020E10018)

语种：英文

外文关键词：Entrained-flow gasifier; Visualization; Particle evolution; Volatile flame

摘要：Based on the bench-scale opposed multi-burner (OMB) coal-water slurry (CWS) impinging entrainedflow gasifier and the visualization imaging systems, the evolution characteristics of particles below the burner plane of gasifier are studied. Image post-processing algorithms and statistical methods are used to analyze and discuss the particle velocity, particle size distribution and particle spatial distribution of the particle group, as well as the volatile flame area and shape of the single particle. The average velocity of particles in the impinging-flow zone is slightly greater than that in the recirculation-flow zone. Compared with the particles in the recirculation-flow zone, the SMD of particles and the particle concentration in the impinging-flow zone are smaller. As the particles move downward along the axial direction of the gasifier, the occurrence frequency of particles in the impinging-flow zone increases. (c) 2022 Elsevier Ltd. All rights reserved.