高温煤沥青灰分测定方法的改进  

Improvement on Measurement of Ash in High Temperature Coal Pitch

作　　者：于银萍 王伟[1] 

机构地区：[1]鞍山热能研究院

出　　处：《燃料与化工》2000年第4期198-199,共2页Fuel & Chemical Processes

摘　　要：在两种试验条件下，测试了国内２６家焦化厂高温煤沥青的灰分，经标准偏差和t检验表明，两种方法无显著性差异，其试验误差均在允许范围内，可在试验室分析中互相替代。Under two test conditions, ashes in high temperature coal pitch from 26 domes- tic coking plants are measured. It is shown that by standard deviation and t examination there is no obvious difference between the two methods, their test errors are within the allowable range, which can be mutually replaced in the lab analysis.

关 键 词：煤沥青 灰分 测定方法 高温 

分 类 号：TQ522.63[化学工程—煤化学工程]