燃料化学学报2016，Vol.44Issue(12)：1440-1446,7.
弱还原气氛下水稻秸秆对晋城无烟煤的助熔机理
Fluxing mechanism of rice straw for Jincheng anthracite under weak reducing atmosphere
摘要
Abstract
The fluxing mechanism of rice straw for Jincheng anthracite with high ash fusion temperatures was investigated under weak reducing atmosphere by CaO-Al2 O3-SiO2 ternary phase diagram, X-ray diffraction ( XRD) and scanning electron microscopy coupled with energy dispersive X-ray spectrometry ( SEM-EDX) . The fusion temperatures of blended ash decrease, and the content of basic oxide CaO,Na2 O and K2 O increases with increment of rice straw addition. The slagging index Rb/a is between 0. 20 and 0. 69. The fluid temperature (FT) declines to 1 369 ℃ by adding 20% rice straw, which could satisfy requirement of liquid slag discharge for gasifier. The addition of rice straw reduces the initial temperature and increases the occurrences proportion and probability of liquid phase in the ash. The formation of crystal albite with low melting point and eutectics formed from anorthite,quartz and mullite lead the decrease of ash fusion temperatures.关键词
晋城无烟煤/水稻秸秆/CaO-Al2O3-SiO2相图/矿物质/助熔机理Key words
Jincheng anthracite/rice straw/CaO-Al2 O3-SiO2 ternary phase diagram/mineral matter/fluxing mechanism分类
化学工程引用本文复制引用
秦育红,韩晴晴,任伟平,赵子兵,冯杰,李文英,高松平..弱还原气氛下水稻秸秆对晋城无烟煤的助熔机理[J].燃料化学学报,2016,44(12):1440-1446,7.基金项目
The project was supported by the National Natural Science Foundation of China (21376158), the National Youth Science Foundation of China (21206104) and State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology (MKX-201503).国家自然科学基金(21376158),国家青年科学基金(21206104)和煤科学与技术省部共建国家重点实验室培育基地开放课题基金(MKX-201503)资助 （21376158）
