SEPARATION OF ALKANES AND AROMATICS WITH SUPERCRITICAL CARBON-DIOXIDE

被引：4

作者：

DEHAAN, AB

DEGRAAUW, J

机构：

[1] Delft University of Technology, Laboratory for Process Equipment, Leeghwaterstraat 44 2628, CA, Delft

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1990年 / 25卷 / 13-15期

关键词：

D O I：

10.1080/01496399008050439

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The separation of alkanes and aromatics with supercritical carbon dioxide has been studied by measuring vapor-liquid equilibria and selectivities in the model systems 2-methylnaphthalene/hexadecane/ carbon dioxide and 2-methylnaphthalene/dodecane/carbon dioxide. The results have been modelled with the Peng-Robinson equation of state. In both model systems supercritical carbon dioxide appeared selective for the component with the highest vapour pressure, 2-methylnaphthalene respectively dodecane. Consequently alkanes and aromatics will be separated by supercritical carbon dioxide on basis of their difference in vapour pressure instead of their difference in chemical structure.

引用

页码：1993 / 2006

页数：14

共 14 条

[1]

ADAMS WR, 1986, DA8628416 U MICR INT

[2]

[Anonymous], 1987, PROPERTIES GASES LIQ

[3] APPLICATION OF A GENERALIZED MULTIPROPERTY APPARATUS TO MEASURE PHASE-EQUILIBRIUM AND VAPOR-PHASE DENSITIES OF SUPERCRITICAL CARBON-DIOXIDE IN NORMAL-HEXADECANE SYSTEMS UP TO 26 MPA [J].