SEPARATION OF ORGANIC-MATTER FROM ASPHALTITE WITH SUPERCRITICAL-FLUID MIXTURES

被引：3

作者：

EROL, M ^{[1
]}

DEMIREL, B ^{[1
]}

TOGRUL, T ^{[1
]}

CALIMLI, A ^{[1
]}

机构：

[1] UNIV ANKARA,DEPT CHEM ENGN,ANKARA 06100,TURKEY

来源：

FUEL PROCESSING TECHNOLOGY | 1995年 / 41卷 / 02期

关键词：

D O I：

10.1016/0378-3820(94)00057-Z

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Supercritical fluid extraction (SFE) of Turkish asphaltite with toluene mixtures was investigated. Experiments were performed in a stirred batch autoclave at 613 K. Organic matter recovered from the SFE were fractionated into oils, asphaltenes and preasphaltenes by solvent extraction. The extract yields are 15.1% with toluene, 16.0% with toluene + 5% methanol and 16.9% with toluene + 5% n-hexane mixtures. Oil yields are 8.8%, 11.1% and 9.7% with toluene and toluene mixtures, respectively. Oils were analysed with a combination of chromatographic and spectroscopic techniques. Results were evaluated to assess the effect of solvent mixtures on product yields.

引用

页码：199 / 206

页数：8

共 26 条

[1] AROMATIC PRODUCTS OF 340-DEGREES-C SUPERCRITICAL TOLUENE EXTRACTION OF 2 TURKISH LIGNITES - NMR-STUDY [J].