The Improvement of the Quality of Raffinate Obtained from Solvent Extraction of Lubricating Oils

被引：1
|
作者：
El-Gayar, M. Sh. [1 ]
Ahmed, A. E-M. [1 ]
Gohar, G. A. [1 ]
Hegazi, A. H. [1 ]
Ibrahim, H. M. [2 ]
Aly, A. M. [3 ]
机构：
[1] Univ Alexandria, Fac Sci, Dept Chem, Alexandria, Egypt
[2] Egyptian Petrochem Holding Co, Nasser City, Cairo, Egypt
[3] AMOC, Alexandria, Egypt
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2010年 / 28卷 / 14期
关键词：
dearomatization; kinetics; lubricating oil; solvent extraction; vacuum distillates;
D O I：
10.1080/10916460903096772
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：
Vacuum distillates of an Egyptian crude oil were subjected to solvent extraction process applying N-methyl-2-pyrrolidone (NMP) and furfural as dearomatization solvents. The study shows that the extraction solvent together with the temperature and solvent-to-oil ratio have a significant effect on the yield and quality of produced lubricating oils. The optimum temperature for extracting light waxy distillates with NMP is 55 degrees C at the solvent-to-feed ratio 2:1. These conditions are appropriate to remove the major portion of aromatics from the raffinate. The apparent activation energy (Ea), enthalpy (H*), entropy (S*), and free energy of activation (G*) were calculated for the solvent dearomatization process.
引用
收藏
页码：1434 / 1444
页数：11
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