洗油馏分及其初步分离工艺

Wash Oil Fractions and Their Preliminary Separation Technologies

洗油馏分是煤焦油在蒸馏过程中切取的馏程为230~300℃的馏分段,含量一般在煤焦油的6.5%~10%之间。洗油馏分主要应用于洗涤、吸收焦炉煤气中的各种有机气体,以及从中分离提取氧芴、萘、喹啉、α-甲基萘、联苯等基本有机化工原料产品。介绍了洗油馏分的用途,以及洗油馏分初步分离的意义和工艺。提出洗油馏分进行分离精制处理后,不仅可以得到丰富多样的具有高附加值的化工产品,而且还能得到吸收效果好的苯族烃吸收剂中质洗油,故对洗油馏分的初步分离工艺具有十分重要的意义。

Washing oil fractions are 230 ~ 300 ℃ distillation fractions in the distillation process of coal tar,their contents are commonly between 6.5% ~10% of coal tar.Wash oil fractions are mainly used in washing,absorption of various kinds of organic gas in coke oven gas,and separation and extraction of oxygen fluorene,naphthalene,quinoline,alpha methyl naphthalene,biphenyl and other basic organic chemical raw material products.The uses of washing oil fractions,the significance and technologies of preliminary separation of wash oil fractions were introduced.It was put forward after wash oil fractions were separated and refined,not only a rich variety of chemical products with high added value could be got,but also benzene hydrocarbon sorbent intermediate wash oil with good absorbed effect could be got,so it was of great significance tothe preliminaryseparation process of wash oil fractions.