Extracting Bitumen from Inner Mongolia Oil Sands Using Several Common Surfactants

Abstract:

In this work, four oil displacement surfactants (EL110, SG20, Span60 and Tween80) were used to study the extraction of bitumen from oil sands. The effect of concentration of surfactant, extraction temperature, extraction time, the addition of NaOH and extraction solvents was investigated. The results showed that the best concentration of EL110、SG20 and Tween80 were 3%（wt）, 0.1% and 10%，respectively, corresponding to the yield of bitumen were 26.4%，33.4% and 30.7%. The addition of NaOH to EL110 and SG20 solution improved the yield of bitumen, which were 45.9% and 48.0%. With the temperature increasing, the yield of bitumen increased speedily. The extraction time is 2 hours. For Tween80, at 60°C, using ethanol as solvent gave a higher yield of bitumen than that of using water. At 70°C, using pure ethanol as extraction solvent gave the yield of bitumen 93.3%. At 60°C the yield of bitumen using pure ethanol was 68.9%, addition of 0.5% Span60 improved the yield to 96.9%, but the addition of Tween80 had no effect on the yield.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 1739-1742
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.1739
• Online since: July 2012
• Authors: Wen Ju Liu, Shao Feng Wang, Pei Xia Zhao
• Keywords: Extraction, Oil Sand, Surfactant, Yield of Bitumen

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