文献类型：期刊文献

英文题名：Physicochemical evolution during rice straw and coal co-pyrolysis and its effect on co-gasification reactivity

作者：Wei, Juntao[1,2];Gong, Yan[1,2];Guo, Qinghua[1,2];Ding, Lu[3];Wang, Fuchen[1,2];Yu, Guangsuo[1,2]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China;[3]Tokyo Inst Technol, Dept Environm Sci & Technol, Midori Ku, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268503, Japan

年份：2017

卷号：227

起止页码：345

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20170103211059);WOS:【SCI-EXPANDED(收录号:WOS:000397923200041)】；

基金：The research was supported by National Natural Science Foundation of China (21676091).

语种：英文

外文关键词：Physicochemical evolution; Co-pyrolysis; Co-gasification; Reactivity

摘要：Physicochemical evolution (i.e. pore structure variation, carbon structure change and active AAEM transformation) during rice straw (RS) and Shenfu bituminous coal (SF) co-pyrolysis was quantitatively determined in this work. Moreover, the corresponding char gasification was conducted using a thermogravimetric analyzer (TGA) and relative reactivity was proposed to quantify the co-pyrolysis impact on co-gasification reactivity. The results showed that the development of pore structure in copyrolyzed chars was first inhibited and then enhanced with the decrease of SF proportion. The promotion effect of co-pyrolysis on order degree of co-pyrolyzed chars gradually weakened with increasing RS proportion. Co-pyrolysis mainly enhanced active K transformation in co-pyrolyzed chars and the promotion effect was alleviated with increasing RS proportion. The inhibition effect of co-pyrolysis on co-gasification reactivity weakened with increasing RS proportion and gasification temperature, which was mainly attributed to the combination of carbon structure evolution and active AAEM transformation in co-pyrolysis. (C) 2016 Elsevier Ltd. All rights reserved.