Tertiary Amine‐Naphthenic Acid Self‐Assembled Surfactants for Viscosity Reduction of Crude Oil | Zendy

Liu Dongfang | Zendy; Suo Yuxin | Zendy; Tan Jiang | Zendy; Zhu Peiyao | Zendy; Zhao Jihe | Zendy; Wang Baogang | Zendy; Lu Hongsheng | Zendy

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Tertiary Amine‐Naphthenic Acid Self‐Assembled Surfactants for Viscosity Reduction of Crude Oil

Author(s) -

Liu Dongfang,

Suo Yuxin,

Tan Jiang,

Zhu Peiyao,

Zhao Jihe,

Wang Baogang,

Lu Hongsheng

Publication year - 2018

Publication title -

chemical engineering and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.403

H-Index - 81

eISSN - 1521-4125

pISSN - 0930-7516

DOI - 10.1002/ceat.201700489

Subject(s) - naphthenic acid , emulsion , chemistry , crude oil , pulmonary surfactant , viscosity , enhanced oil recovery , light crude oil , amine gas treating , chromatography , organic chemistry , chemical engineering , petroleum engineering , materials science , corrosion , biochemistry , engineering , composite material

The formation of low‐viscosity emulsions is a vital method for viscosity reduction of crude oil. Naphthenic acids, which are present in crude oil, are potential surface‐active substances. Tertiary amines with CO 2 response can be self‐assembled in situ with the naphthenic acids in the crude oil to form a surfactant, which can emulsify the heavy crude oil and water to form an emulsion. The emulsion can be easily demulsified in the presence of CO 2 . N , N ‐Dimethylbutylamine, N , N ‐dimethyloctylamine, and N , N ‐dimethyldodecylamine were used to prepare heavy crude oil emulsions in this work. This convenient emulsification and demulsification approach provides a new concept for pipeline transportation of heavy crude oil.

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