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Chemcial Industry and Engineering 2015, Vol. 32 Issue (1) :11-16    DOI: 10.13353/j.issn.1004.9533.2015.01.003
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Organic Solvent Extraction of Bitumen from Canada Oil Sands
Feng Jie1, Li Xingang1,2, Xu Ningjin3, Sui Hong1,2
1. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2. National Engineering Research Centre for Distillation Technology, Tianjin 300072, China;
3. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

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Abstract Organic solvent extraction used for extraction of bitumen from oil sand was introduced, and the process has two stages: bitumen phase dissolution and separation of bitumen, solvent and sands. In this study, toluene, heptane, acetone, ethyl acetate, toluene/heptane, acetone/heptane and ethyl acetate/heptane were used as the solvent to investigate the total recovery of bitumen and the extraction efficiency of four defined fractions (saturates, aromatics, resins and asphaltenes) in bitumen. The result of the surface tension of bitumen/solvent showed that the surface tension varied only based on the type of solvent used and remained relatively unchanged during the extraction process of bitumen from oil sands. Mixture solvent systems were good for oil sand separation due to the extraction efficiency and the low surface tension.
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Keywordsorganic solvent;   oil sands   bitumen recovery;   surface tension     
Received 2013-12-12;
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Feng Jie, Li Xingang, Xu Ningjin, Sui Hong.Organic Solvent Extraction of Bitumen from Canada Oil Sands[J]  Chemcial Industry and Engineering, 2015,V32(1): 11-16
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