Span 80 effect on the solvent extraction for heavy oil recovery

In this study, we used the Span 80 to enhance solvent extraction process, and we explored the mechanism. The results indicated different solvents would obtain different oil recovery, and toluene showed the optimal oil recovery, and the n-heptane showed the lowest oil recovery. The complex solvents c...

Full description

Saved in:
Bibliographic Details
Published inArabian journal of chemistry Vol. 15; no. 9; p. 104035
Main Authors Hou, Jinjian, Cao, Mingyao, Duan, Keyi, Sun, Lingyu, Lin, Shuanglong, Zhang, Ming, Li, Wei
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2022
Elsevier
Subjects
Complex solvent
Recycle use
Solvent extraction
Span 80
Recycle use
Complex solvent
Span 80
Solvent extraction
Online AccessGet full text

Cover

More Information
Summary:In this study, we used the Span 80 to enhance solvent extraction process, and we explored the mechanism. The results indicated different solvents would obtain different oil recovery, and toluene showed the optimal oil recovery, and the n-heptane showed the lowest oil recovery. The complex solvents could improve oil recovery. Toluene could make the heavy oil show the lowest viscosity (89.6 Pa.S), and n-heptane make the heavy oil show the highest viscosity (176.3 Pa.S). Complex solvents could decrease the heavy oil viscosities. The higher C/H was, the higher heavy oil recovery was, and when the asphaltene and resins content increase, the C/H would increase. The C/H showed the highest value (9.09, by toluene) and the lowest value (8.15). In this study, Span 80 could increase heavy oil C/H ratio, decrease heavy oil viscosity. Span 80 could make the sands surface more hydrophilic, and then the solvent loss would decrease. The oil recovery was high after 10 times recycle use.
ISSN:1878-5352
1878-5379
DOI:10.1016/j.arabjc.2022.104035