文献类型：期刊文献

英文题名：Influence of biomass addition on Jincheng coal ash fusion temperatures

作者：Chen, Xueli[1];Tang, Jianye;Tian, Xiaojun;Wang, Li

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

年份：2015

卷号：160

起止页码：614

外文期刊名：FUEL

收录：;EI(收录号：20153501211276);WOS:【SCI-EXPANDED(收录号:WOS:000360710600069)】；

基金：This study was supported by Major State Basic Research Development Program of China (2011CB200906), Program for New Century Excellent Talents in University (NCET-12-0854) by the Ministry of Education of China and the National Natural Science Foundation of China (21306050).

语种：英文

外文关键词：Coal; Biomass; Co-gasification; Ash fusion temperature; Mineral matters

摘要：The ash fusion temperatures (AFTs) of Jincheng (JC) coal, two kinds of biomass (cotton stalk (CS) and sargassum natans (SA)) and various coal-biomass mixtures were investigated in this study. Fluid temperatures (FT) were found 1531 degrees C, 1534 degrees C and 1428 degrees C for JC, CS and SA ash respectively, which were higher than the normal operating temperature of entrained bed gasifier. However, the FTs of JC and CS mixture ash were lower than that of either single JC or CS ash, which showed a minimum value of 1292 degrees C with 80% CS, and the FTs of JC and SA mixture ash showed the similar trend with a minimum value of 1258 degrees C when SA proportion was 40%. At high temperature, refractory minerals were presented in three respective ashes, which were mullite of JC ash, lime and periclase of CS ash, merwinite and akermanite of SA ash. And they could support the ash skeleton structure. Interaction between coal and biomass ash occurred during blending ash melting process, which formed co-eutectic and decreased the AFTs. The relationship between the ash fusion temperatures and the ash chemical composition was also discussed. (C) 2015 Elsevier Ltd. All rights reserved.