CHARACTERIZATION OF ATHABASCA ASPHALTENES BY SMALL-ANGLE X-RAY-SCATTERING

被引：63

作者：

XU, YN ^{[1
]}

KOGA, Y ^{[1
]}

STRAUSZ, OP ^{[1
]}

机构：

[1] UNIV ALBERTA,DEPT CHEM,EDMONTON,AB T6G 2G2,CANADA

来源：

FUEL | 1995年 / 74卷 / 07期

关键词：

ASPHALTENES; COLLOIDAL DISPERSIONS; SAXS;

D O I：

10.1016/0016-2361(95)00033-2

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：

Colloidal dispersions of Athabasca asphaltenes in toluene were studied at room temperature by small-angle X-ray scattering (SAXS). Both 5% and 15% dispersions were found to be polydispersed spheres with the main distribution peak at a concentration-independent average radius of 33 Angstrom. The main distribution peak was skewed to the right, similar to a Schultz distribution. Owing to interparticle correlation, a small proportion of the particles could be interpreted as forming larger aggregates, the size of which appeared to decrease on increasing the concentration of dispersion.

引用

页码：960 / 964

页数：5

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