摘要
以四氢萘为溶剂,通过离心分离的方法对煤液化沥青进行了净化,结果表明,在四氢萘:煤液化沥青质量比为3:1,离心转速4 000r/min,离心时间20min时,煤液化沥青的灰分可降至0.02%,QI含量降至0.8%,此时煤液化沥青的收率可达80%以上,溶剂的收率在75%左右.
The coal liquefaction pitch was refined with tetralin by centrifugal separation. when the ratio of tetralin to coal liquefaction pitch was 3 ： 1, and centrifugal speed was 4 000 r/ min, centrifugal time was 20 rain, it was demonstrated that the ash could be decreased 0.02%,and QI could be decreased 0. 8%, while the yield of pitch could exceed 80%, and the yield of te- tralin was about 75%.
出处
《煤炭转化》
CAS
CSCD
北大核心
2013年第2期33-35,共3页
Coal Conversion
基金
煤炭科学研究总院科技基金资助项目(2010QN01)
关键词
煤液化沥青
灰分
收率
coal liquefaction pitch, ash, yield
