Study on Solvent Extraction Process from Oil Sands Amended with CPAM

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Abstract

Toluene, n-heptane, petroleum ether and naphtha were used as the solvent to extract bitumen from water-wet oil sands amended with CPAM (cationic polyacrylamide) aqueous solution and pure[Emim]BF₄. The bitumen recovery, infrared spectrum of bitumen and SEM microphotographs of the residual sands/clay constitute the three aspects of evaluation of the solvents and additives. Finally, naphtha amended with CPAM aqueous solution were regarded to be reliable and practical. After the optimization, the bitumen recovery increased from 72.29% to 78.29% while the ratio of naphtha to 0.05% CPAM aqueous solution to oil sands was 3:2:1 at room temperature. In addition, CPAM aqueous solution demonstrated the ability to reduce clay/fines entrainment both in bitumen and naphtha systems.

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	Articles by authors
	Yuan Yipu
	He Lin
	Sui Hong

Keywords： oil sands； CPAM； naphtha； clay fines entrainment

Received 2015-04-29;

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Yuan Yipu, He Lin, Sui Hong.Study on Solvent Extraction Process from Oil Sands Amended with CPAM[J] Chemcial Industry and Engineering, 2017,V34(2): 73-78

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