文献类型：期刊文献

英文题名：The effect of flux on ash fusibility of high-calcium shanxin coal

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

机构：[1] Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science and Technology, Shanghai 200237, China Shanghai Engineering Research Center of Coal Gasification, East China University of Science and Technology, Shanghai 200237, China

年份：2013

卷号：5

起止页码：3671

外文期刊名：30th Annual International Pittsburgh Coal Conference 2013, PCC 2013

收录：EI(收录号：20141817638977)

语种：英文

外文关键词：Alumina - Sodium compounds - Application programs - Aluminum oxide - Calcium - Coal - Magnesia - Titanium dioxide - Coal ash

摘要：The primary aim of this study is to understand the effect of flux on the fusibility of high-calcium Shanxin coal ash. The different oxides, Al 2O3, TiO2, Na2O, K2O, MgO and SiO2, are separately added into high-calcium Shanxin coal ash to prepare the coal samples. Experiments are conducted to inspect the effect of different oxides on ash fusion temperature (AFT) variation. The FactSage 6.2 software is used to predict the proportion of solid phase and the mineral phase formed as a function of the composition and temperature. The changes of AFT caused by the addition of flux have been studied by mechanism analysis. The results show that the AFTs of coal samples decrease with the increase of Al 2O3, TiO2 , Na2O, K2O and SiO2 and then increases. However the AFT always increases with MgO in the whole content range. And SiO2 is the most effective in lower the AFT. The binary and ternary phase diagrams are plotted by FactSage, illustrating optimum value of adding flux and the AFT variations. The simulation results of FactSage 6.2 software are consistent with the AFT experimental values, which indicates that the software is reliable and effective in the application of AFT prediction.