摘要
采用硫酸铁溶液氧化浸出法脱除贵州某矿煤中的硫,考察了硫酸铁溶液浓度、浸出温度、浸出时间及液固比对脱硫率的影响.实验结果表明,在浸出温度100℃,浸出时间8h,硫酸铁溶液浓度1mol/L,液固比10:1时,能有效脱除煤中硫份,脱硫率达到48.56%.脱硫前后煤样的对比分析结果表明,硫酸铁氧化浸出煤中硫的同时,不仅没有破坏煤中的有效成分,而且提高了煤样的热值,提升了煤的质量.
In order to remove sulfur of the coal mined from Guizhou Province,aqueous ferric sulfate oxidizing leaching method was used. The effects of ferric sulfate concentration,leaching temperature,leaching time and liquid/solid ratio on the desulfurization efficiency were investigated. The results indicated that 48.44% sulfur was removed under the conditions of leaching temperature at 100℃,leaching time 8 h,ferric sulfate concentration 1 mol/L and liquid/solid ratio 10：1. Difference between original and desulfurized coal samples was also investigated. The results showed that active components of the coal sample were not destroyed when sulfur was removed. Moreover,the caloric value and quality of the coal sample were improved after desulfurization.
出处
《过程工程学报》
CAS
CSCD
北大核心
2010年第6期1104-1109,共6页
The Chinese Journal of Process Engineering
基金
贵阳市科技局工业类资助项目(编号:筑科工字(2009)第1号)
关键词
煤
脱硫
硫酸铁
氧化浸出
coal
desulfurization
ferric sulfate
oxidizing leaching
