China Petroleum Processing & Petrochemical Technology ›› 2022, Vol. 24 ›› Issue (4): 93-97.

• Process Research • Previous Articles     Next Articles

Selection of Extraction Solvents for Bitumen from Indonesian Oil Sands through Solubility Parameters

Cui Wenlong1; Zhu Qingqing1,2; Zhao Chenze1; Wang Cheli1   

  1. 1. Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China;
    2. Zhejiang Chemical Products Quality Inspection Company Ltd., Hangzhou 310023, China
  • Received:2022-09-28 Revised:2022-07-01 Online:2022-12-30 Published:2022-12-30
  • Supported by:
    Natural Science Foundation of Jiangsu Province;Joint Project of Industry-University-Research of Jiangsu Province; Open Fund of State Key Laboratory of Heavy Oil Processing

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Abstract: Indonesian oil sands were separated systematically to investigate the basic composition. Based on this, the extraction effects of solvents with different Hilderbrand solubility parameter (HSP) on bitumen of Indonesian oil sands were compared. Furthermore, the Hansen solubility combination parameter (HSCP) and the Teas triangle were used to explore the rules that could be followed in the separation of oil sands bitumen by solvent extraction. Finally, the SARA fractions of bitumen from Indonesian oil sands were analyzed. The results showed that Indonesian oil sand was oil-wet with bitumen content of 24.93 %. The extraction solvents for bitumen could be selected accurately and conveniently based on the solubility parameter. When the HSPs of the extraction solvent were about 18~19, and the HSCPs were closer to a certain range (=17.5~18.0, =1~3.5, =2~6), the extraction effect of bitumen from Indonesian oil sands was better, and the main component affecting the extraction rate of bitumen were asphaltenes.

Key words: oil sand bitumen, extraction solvent, solubility parameter, SARA fractions