文献类型：期刊文献

英文题名：Experimental study on particle characteristics in an opposed multi-burner gasifier

作者：Gong, Yan[1,2];Yu, Guangsuo[1,2];Guo, Qinghua[1,2];Zhou, Zhijie[1,2];Wang, Fuchen[1,2];Liu, Yongdi[2]

机构：[1]E China Univ Sci & Technol, Key Lab Coal Gasificat & Energ y Chem Engn, Minist Educ, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China

年份：2014

卷号：117

起止页码：93

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20142917946413);WOS:【SCI-EXPANDED(收录号:WOS:000340931800009)】；

基金：This work has been partially supported by the National Natural Science Foundation of China (21176078), the National Key State Basic Research Development Program of China (973Program, 2010CB227004) and the National High Technology Research and Development of China (863 program, 2012AA053101).

语种：英文

外文关键词：Opposed multi-burner (OMB); Visualization in gasifier; Particle characteristic; Temperature distribution; Particle group

摘要：Based on the bench-scale opposed multi-bumer (OMB) coal-water slurry (CWS) gasifier, temperature distributions of particles at different spatial regions, reactivity characteristics of particles and their interactions were studied with a variety of visualization techniques. The particles in gasifier are mainly classified to five types, and the principles of transformation between them are concluded as: low temperature particle without wake (LIP) could transform to low temperature particle with high temperature wake (LIP-HTW) when contacted with high temperature flame, then transform to LIP as reactions terminate and the particles become non-reactive; low temperature particle with low temperature wake (LTP-LTW) would transform to LIP-HTW when transfer to high temperature regions; as LTP-HTW adhere to the refractory wall, their wakes vanish and particles transform to high temperature particle without wake (HIP); high temperature particle with high temperature wake (HTP-HTW) could finally transform to HIP after the end of reactions. Particle groups with irregular shapes, flake-shaped and hollowed spherical structure are the forms of existence for larger size particles in gasifier. (C) 2014 Elsevier Ltd. All rights reserved,