燃料化学学报2018，Vol.46Issue(2)：129-137,9.
长治煤与生物质混合灰熔融特性研究
Fusion characteristics of blended ash from Changzhi coal and biomass
摘要
Abstract
The blended ash fusion characteristics and its fusion mechanism of biomasses (peanut husk (PH) and rice husk (RH)) and Changzhi (CZ) coal with high melting point (MP) were investigated by ash fusion temperature (AFT) detector,X-ray fluorescence,X-ray diffraction,and FactSage software.The results show that the AFTs of CZ ash mixtures decrease with addition of biomass ash,and the fluxing effect of PH ash is better than that of RH ash,which mainly depends on their ash chemical compositions and elements existing form.The formations of low MP minerals anorthite,albite,and leucite are responsible for the decrease in AFr of PH and CZ mixtures.With RH ash addition,feldspar and eutectics are generated,resulting in a decrease in AFT of their mixtures.In the presence of Na2O,CaO,or K2O,SiO2 and Al2O3 would firstly react with them to form low MP aluminosilicate from the perspective of thermodynamic calculation,inhibiting formation of high MP mullite.The mixed ash fusion process could be divided into two major stages:fusion of K-and Ca-bearing minerals,respectively.关键词
长治煤/生物质/混合灰/灰熔融温度/矿物学特性Key words
Changzhi coal/biomass/blended ash/ash fusion temperature/mineralogical property分类
化学化工引用本文复制引用
马修卫,李风海,马名杰,房倚天..长治煤与生物质混合灰熔融特性研究[J].燃料化学学报,2018,46(2):129-137,9.基金项目
The project was supported by the Natural Science Foundation of Shandong Province(ZR2014BM014),Strategic Priority Research Program of the Chinese Academy of Sciences (XDA07050103) and Youth Natural Science Foundation of Shanxi Province (Y5SJ1A1121).山东省自然科学基金(ZR2014BM014),中国科学院战略性先导科技专项(XDA07050103)和山西省青年自然科学基金(Y5SJ1A1121)资助 （ZR2014BM014）
