燃料化学学报2017，Vol.45Issue(4)：394-399,6.
燃烧与催化气化灰中铝溶出行为的研究
Comparison of leaching behaviors of aluminum in ash from combustion and catalytic gasification
摘要
Abstract
The leaching behaviors of aluminum in ash from combustion and catalytic gasification, and effects of Na2CO3 addition ( 0-15%) , temperature ( 600-1000 ℃) on Al leaching behaviors and mineral composition were investigated. The compositions of ash from combustion and gasification, and acid leaching residue were investigated by XRD. The results shows that the combustion ash is predominantly composed of mullite, while that from catalytic gasification is sodium aluminum silicate ( ( Na2O) 0. 33 NaAlSiO4 ) . The Al extraction yield of combustion ash only reaches 40% at leaching conditions of 6 mol/L H2 SO4 , 60℃ and 30 min , while that of catalytic gasification ash with 10% Na2CO3 addition can reach 88%. The catalytic gasification with Na2CO3 addition can achieve higher Al extraction yield.关键词
催化气化/煤灰/氧化铝提取Key words
catalytic gasification/coal ash/alumina extraction分类
化学化工引用本文复制引用
梅艳钢,王志青,方惠斌,冯荣涛,房倚天..燃烧与催化气化灰中铝溶出行为的研究[J].燃料化学学报,2017,45(4):394-399,6.基金项目
The project was supported by the National Natural Science Foundation of China ( 21676289 ) , the Research Supported by the CAS/SAFEA International Partnership Program for Creative Research Teams and Youth Innovation Promotion Association (2014156).国家自然科学基金(21676289),中国科学院国家外国专家局创新团队国际合作伙伴计划和中国科学院青年创新促进会(2014156)资助 （ 21676289 ）
