化学工程2013，Vol.41Issue(3)：29-31,36,4.DOI:10.3969/j.issn.1005-9954.2013.03.007
萃取精馏分离D40溶剂油中C8-C12异构烷烃
Separation of isoparaffins(C8-C12) from D40 oil by extractive distillation
刘海 1黎四芳1
作者信息
- 1. 厦门大学化学化工学院,福建厦门361005
- 折叠
摘要
Abstract
In the separation of isoparaffins and naphthenes by extractive distillation of D40 oil from Nanjing refinery, several entrainers including sulfolane, dimethyl phthalate and triethylene glycol, as well as their mixtures were applied and studied, among which sulfolane has the best selectivity to isoparaffins, and the mass fraction of isoparaffins in vapour phase from D40 oil is increased from 16.65% to 27.51% as the volume ratio of solvent to oil is 5:1 ,and the relative volatility is 1.151. Based on the study of single solvent,the effects of using mixed entrainers with different components on the relative volatilities and separation results were also investigated. The relative volatility of isoparaffins to naphthenes was promoted to 2. 895 by using the mixture of sulfolane and dimethy phthalate ( volume ratio 1:1) as an entrainer.关键词
溶剂油/萃取精馏/异构烷烃Key words
solvent oil/ extractive distillation/ isoparaffin分类
化学化工引用本文复制引用
刘海,黎四芳..萃取精馏分离D40溶剂油中C8-C12异构烷烃[J].化学工程,2013,41(3):29-31,36,4.
