文献类型：期刊文献

英文题名：Study on reactivity characteristics and synergy behaviours of rice straw and bituminous coal co-gasification

作者：Wei, Juntao[1];Guo, Qinghua[1];Chen, Handing[1];Chen, Xueli[1];Yu, Guangsuo[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：220

起止页码：509

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20163702787685);WOS:【SCI-EXPANDED(收录号:WOS:000384712900063)】；

基金：The research was supported by National Natural Science Foundation of China (21376081).

语种：英文

外文关键词：Co-gasification; Reactivity characteristics; Synergistic effect; Inhibiting effect

摘要：Co-gasification of rice straw (RS) and Shenfu bituminous coal (SF) was conducted in a thermogravimetric analyzer (TGA) to explore the effects of gasification temperature and blend ratio on reactivity characteristics and synergy behaviours of co-gasification. Moreover, the relationship between the synergy and the K/Ca transformation in co-gasification was studied using flame atomic absorption spectrum (FAAS) and in-situ heating stage microscope. The results showed that the whole reactivities increased with increasing RS proportion and gasification temperature. The transformation of water-soluble and ion-exchanged (ws-ie) calcium was enhanced in whole co-gasification and the ws-ie potassium transformation was obviously inhibited in mid-late reaction. Hence, synergy behaviours were synthetically determined by the enhancement of Ca deactivation and the strengthening of K catalysis. The inhibiting effect was occurred in initial co-gasification and was converted to the synergistic effect at a characteristic conversion, which decreased with increasing RS proportion and decreasing gasification temperature. (C) 2016 Elsevier Ltd. All rights reserved.