SEPARATION OF ALKANES AND AROMATICS WITH SUPERCRITICAL C2H6, CO2, CCLF3, AND CHF3

被引：5

作者：

DEHAAN, AB

DEGRAAUW, J

机构：

[1] LABORATORY FOR PROCESS EQUIPMENT, DELFT UNIVERSITY OF TECHNOLOGY, 2628 CA DELFT

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1992年 / 27卷 / 01期

关键词：

SUPERCRITICAL EXTRACTION; ALKANE AROMATIC SEPARATION;

D O I：

10.1080/01496399208018864

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A study on the separation of alkanes and aromatics with supercritical ethane, carbon dioxide, monochlorotrifluoromethane, and trifluoromethane is presented. It appears that only with solvents that have a low dipole moment, such as ethane and carbon dioxide, can reasonable solubilities in the vapor phase be obtained. These low dipole moment solvents will separate alkanes and aromatics mainly on the basis of their difference in vapor pressure rather than on their difference in chemical structure. Therefore, supercritical solvents can only be used for specific applications where alkanes and aromatics have to be separated on the basis of their difference in vapor pressure.

引用

页码：43 / 60

页数：18

共 18 条

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