Analytical considerations related to asphaltenes and waxes in the same crudes

被引：16

作者：

Fuhr, BJ ^{[1
]}

Holloway, LR

Hammami, A

机构：

[1] Alberta Res Council, Edmonton, AB T6N 1E4, Canada

[2] DB Robinson Res Ltd, Edmonton, AB L6N 1E5, Canada

来源：

ENERGY & FUELS | 1999年 / 13卷 / 02期

关键词：

D O I：

10.1021/ef980205h

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Increasingly waxy crudes containing significant quantities of asphaltenes require characterization, and established methods for separation of the waxes and asphaltenes are often not applicable. An analytical scheme is described employing only one solvent, methylethyl ketone, to separate asphaltenes and waxes, rather than an n-alkane and a ketone. The method consists of an asphaltenes fractionation by filtration at 50 degrees C, followed by wax recovery by cooling to a specified temperature (dependent upon the user's needs) and filtration. The carbon number distribution of the wax fraction may be determined by high-temperature gas chromatography, and the soluble oil (minus asphaltenes and wax) can be further characterized by liquid chromatography and mass spectrometry.

引用

页码：336 / 339

页数：4