The application of UNIFAC group - Contribution model in vapor-liquid equilibrium of heavy oil

被引：0
作者：
Gao, DW [1 ]
Gao, JS [1 ]
Xu, CM [1 ]
机构：
[1] Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2006年 / 24卷 / 05期
关键词：
heavy oil; vapor-liquid equilibrium; UNIFAC; normal alkylane; model-molecular;
D O I：
10.1081/LFT-200044401
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：
A normal alkylane model molecular-UNIFAC model for prediction of the vapor-liquid equilibrium of heavy oil is introduced in this paper. There is only one sort of main group in this model, and the types and numbers of subgroups in the narrow fractions can be determined only according to one property factor. The errors of vapor-liquid equilibrium of Daqing crude oil between experimental values and the ones calculated by this model are satisfactorily within engineering accuracy. The application field of this model in vapor-liquid equilibrium of heavy oil is expected for expansion in the future.
引用
收藏
页码：423 / 430
页数：8
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