The effect of molecular parameters on the stability of water-in-crude oil emulsions studied by IR and UV spectroscopy

被引：31
作者：
Li, MY
Xu, MJ
Ma, Y
Wu, ZL
Christy, AA
机构：
[1] Agder Univ Coll, Fac Math & Nat Sci, Dept Chem, N-4604 Kristiansand, Norway
[2] Univ Petr Beijing, Fac Chem Engn, Beijing, Peoples R China
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2002年 / 197卷 / 1-3期
关键词：
crude oil emulsion; asphaltene; resin;
D O I：
10.1016/S0927-7757(01)00892-5
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：
The stability of a model emulsion stabilised by the interfacially active fractions from crude oils has been explained by the molecular properties of the fractions studied by IR, UV, GC/MS and VOP. The study clearly demonstrates that the stability of water-in-crude oil emulsions depend on a combination of factors such as molecular size, aromaticity, aromatic condensation and carbonyl group concentrations. The results show that a fraction that has higher molecular weight, higher aromaticity, higher aromatic condensation and higher carbonyl group concentration per unit aromatic structures give higher emulsion stability. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：193 / 201
页数：9
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