文献类型：期刊文献

英文题名：Study on Fusibility and Flow Behavior of High-Calcium Coal Ash

作者：Xu, Jie[1];Liu, Xia[1];Zhao, Feng[1];Wang, Fuchen[1];Guo, Qinghua[1];Yu, Guangsuo[1]

机构：[1]E 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：2014

卷号：47

期号：9

起止页码：711

外文期刊名：JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

收录：;EI(收录号：20144100083676);WOS:【SCI-EXPANDED(收录号:WOS:000346586500001)】；

基金：This work is partially supported by National Nature Science Foundation of China (Grant 21176078 and Grant 21006026) and National Key State Basic Development Program of China (973 Program) (Grant 2010CB227006).

语种：英文

外文关键词：High-Calcium Coal Ash; Fusibility; Viscosity; SiO2; FactSage

摘要：The primary aim of this study is to understand the effect of SiO2 on the fusibility and flow behavior of high-calcium coal ash and to investigate the mineral materials transformation at high temperatures. The changes of ash fusion temperature and viscosity at different coal-SiO2 blended ratio were researched. The results show that the ash fusion temperature of Shanxin blending coal reaches the minimum when SiO2/Al2O3 (S/A) weight ratio is 7.36 and acid to basic ratio (A/B) is 1.23. The mineral matters variation of Shanxin coal ash was compared with that of S/A = 7.36 Shanxin blending coal ash by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results indicate that the fluidity of slag has been improved by the Si content in minerals. FactSage was used to predict the optimum value of flux and to demonstrate the mineral matters variation and these results agree well with the experimental values.