Fractal dimension of asphaltene aggregates determined by turbidity

被引：12

作者：

Gmachowski, Lech ^{[1
]}

Paczuski, Maciej ^{[1
]}

机构：

[1] Warsaw Univ Technol, Inst Chem, PL-09400 Plock, Poland

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2011年 / 384卷 / 1-3期

关键词：

Aggregate settling; Turbidity; Asphaltene aggregates; Fractal dimension; Image analysis; SUSPENSIONS; SEDIMENTATION; SIZE;

D O I：

10.1016/j.colsurfa.2011.05.007

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A method is presented for determination of aggregate fractal dimension. Aggregate settling is detected by the turbidity sensor, from which both the falling velocity of aggregates and the turbidity of the suspension are determined. This makes it possible to compute the fractal dimension of falling aggregates due to different aggregate mass dependences of both quantities on fractal dimension. The value obtained for asphaltene aggregates as a result of performed experiments and analysis, equal to 1.7, is very close to that deduced from the aggregate microscope image analysis, equal to 1.6. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：461 / 465

页数：5

共 19 条

[1] Settling characteristics of composites of PNIPAM microgels and TiO2 nanoparticles [J].