An analysis of crude oil-acid reaction products by size-exclusion chromatography

被引：15

作者：

Rietjens, M

Nieuwpoort, M

机构：

[1] Halliburton BV, European Res Ctr, NL-2352 BZ Leiderdrop, Netherlands

[2] Sch Lab Educ, NL-2352 BA Leiderdrop, Netherlands

来源：

FUEL | 2001年 / 80卷 / 01期

关键词：

crude oil-acid complexes; acid-sludge; aggregation; size-exclusion chromatography;

D O I：

10.1016/S0016-2361(00)00073-9

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：

The contact of acid with crude oil generates a reaction product known as acid-sludge which has been interpreted as polymerised asphaltenes due to Friedel-Crafts reactions. A size-exclusion chromatographic analysis of crude oils and fractions showed, however, that acid-sludge is composed of small molecules. The greatest increase in molecular weight was observed for the nonpolar fractions. The results could be explained by assuming surfactant-like behaviour of protonated basic crude oil components. Aggregate formation, therefore, explains the higher molecular weights observed. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：33 / 40

页数：8

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