摘要
离子液体作为一种新型溶剂,在煤化工领域尚未应用.以离子液体——[Emim]BF4作为煤溶胀的溶剂,在常压常温条件下,从溶胀时间、溶剂性质以及温度等因素来研究煤在离子液体中的溶胀性能.结果表明,煤样在离子液体中的溶胀度是随温度的升高和时间的延长呈现先增大后减小的趋势;溶胀度在反应温度为50℃和溶解8h后达到最大;红外谱图显示经过离子液体处理后,煤样的分子结构发生改变.
Ionic liquid is a new kind of solvent, but it has never been applied to coal chemical industry. Ionic liquid was firstly used as coal-direct liquefaction solvent in this paper. The swelling function was studied at ambient pressure and normal temperature. Effects of sol- vent, confecing time and temperature were discussed. It is found that swelling capacity is the most strong at 50 ℃ and 8 h later, hut the swelling capacity along with elevatory temperature and time appeared to firstly increase and subsequently reduced. And the results indicated that molecu- lar structure of coal sample had changed through FTIR analysis.
出处
《煤炭转化》
CAS
CSCD
北大核心
2009年第4期58-60,共3页
Coal Conversion
基金
河南省基础与前沿发展项目(072300420190)
河南省教育厅自然科学研究项目(2009A15001)
河南省教育厅青年骨干教师项目(649072)
关键词
煤
离子液体
溶胀
红外光谱
coal, ionic liquids, swelling, FTIR analysis
