Methods for determining asphaltene stability in crude oils

被引：140
作者：
Guzman, Roque [1 ,2 ]
Ancheyta, Jorge [1 ]
Trejo, Fernando [2 ]
Rodriguez, Silvano [1 ,2 ]
机构：
[1] Inst Mexicano Petr, Eje Cent Lazaro Cardenas Norte 152, Mexico City 07730, DF, Mexico
[2] Inst Politecn Nacl, CICATA Legaria, Legaria 694,Col Irrigac, Mexico City 11500, DF, Mexico
来源：
FUEL | 2017年 / 188卷
关键词：
Stability; Asphaltenes; SARA analysis; Correlation; SOLUBILITY; PRECIPITATION; MODEL; TEMPERATURE; DEPOSITION; PRESSURE; RESINS; ONSET;
D O I：
10.1016/j.fuel.2016.10.012
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：
Different tests used to predict asphaltene stability in crude oils, such as colloidal instability index, colloidal stability index, Stankiewicz plot, qualitative-quantitative analysis, stability cross plot, Heithaus parameter, toluene equivalence, Bureau of Mines correlation index - toluene equivalence, and oil compatibility model are reported in this work. In addition, SARA fractionation, asphaltene flocculation point, P-value, S-value, separability number, stationary column stability test, compatibility test, and spot test are disclosed. Using experimental data reported in literature, each test is carried out in order to evaluate its accuracy finding that some tests predict the asphaltene stability better than other ones. It was found that qualitative-quantitative analysis and stability cross plot behaved better than colloidal instability index and Stankiewicz plot. (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码：530 / 543
页数：14
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