响应面法优化煤焦油电脱盐工艺  

Optimization of Electrical Desalting Process of Coal Tar Using Response Surface Methodology

作　　者：崔楼伟[1] 李冬[1] 李稳宏[1] 高新[1] 杨小彦[1] 

机构地区：[1]西北大学化工学院,陕西西安710069

出　　处：《化学反应工程与工艺》2010年第3期258-263,268,共7页Chemical Reaction Engineering and Technology

基　　金：陕西省"13115"科技创新工程资助项目(2008ZDKG-50);西安市科技局创新支撑计划项目(CXY1021)

摘　　要：在单因素实验基础上采用响应面分析法的中心组合设计原理优化了煤焦油电脱盐、脱水工艺。优化得到的工艺条件为：电脱温度110．97℃，电场强度983．06V／cm，破乳剂注入量9．65μg／g。水注入量9．11％，脱金属剂注入量30μg／g，电脱总时间8mln。电脱后煤焦油中的金属含量为24-28μg／g，水份小于300μg／g，固体杂质小于400μg／g，符合加氢原料油的进料要求。The central composite design principle of response surface analysis was used to optimize coal tar electric desalting and dehydration process on the basis of the single-factor experiment. Optimized conditions were obtained as the followings： desalination temperature 110.97℃, electric field intensity 983.06 V/era, the adding amount of demulsifier 9.655μg/g, the adding amount of water 9.11%, the adding amount of demetallizationis 30 5μg/g, the total electric desalination time 8 minutes. The content of metal in coal tar was 24--25 5μg/g, the content of water was less than 300 5μg/g and solid impurities was less than 400 5μg/g in the treatmented coal tar, which is in full compliance with the feed requirements of hydrogenation feedstock.

关 键 词：煤焦油 响应面法 中心组合设计 脱杂 电脱盐 电脱水 

分 类 号：TQ523.6[化学工程—煤化学工程]