Crude oil characterization with a new dynamic emulsion stability technique

FUEL

卷:290

Article

Patil, Amit¹  Arnesen, Kamilla²  Holte, Anja²  Farooq, Umer³  Brunsvik, Anders⁴  Storseth, Trond³  Johansen, Stein Tore¹ 

[1] SINTEF Ind, Proc Technol Dept, Flow Technol Grp, SP Andersens Vei 15b, N-7031 Trondheim, Norway

[2] Norwegian Univ Sci & Technol NTNU, Dept Mat Sci & Engn, Alfred Getz Vei 2, N-7034 Trondheim, Norway

[3] SINTEF Ocean, Environm & New Resources Dept, Brattorkaia 17C, Trondheim, Norway

[4] SINTEF Ind, Biotechnol & Nanomed Dept, Mass Spectrometry Grp, Alfred Getz Vei 2, N-7034 Trondheim, Norway

关键词: Surface chemistry;    Crude oil-water emulsions;    Interfacial stability;    Inertial and viscous subrange;    Analytical chemistry FT-ICR APPI Mass Spectroscopy;    Droplet size relaxation coefficients;    Asphaltene;    Waxes;    Naphthenic acids;    Surface active components;   

DOI  :  10.1016/j.fuel.2020.120070

来源: Elsevier

【 摘 要 】

Crude oils due to its profuse chemical composition produce complex dispersion and emulsion flow behavior with water. The interfacial properties and surface chemistry of oil and water influence heavily the stability, flow behavior and separation of oil and water. In order to understand the crude oil/water emulsion stability better, a new technique is proposed that involves the combined use of a stirred tank cell with interfacial tension and analytical chemistry measurement. Droplet stability parameters like droplet size equilibrium and relaxation time scales have been evaluated and corroborated with surface chemistry of the crude oils. A deeper understanding on how surface-active component like asphaltenes, naphthenic acids and waxes proportion present in crude oils influence emulsion droplet stability is discussed. The 3 crude oils Gjoa, Grane and Bragge were characterized for asphaltenes, naphthanic acids and waxes which was further corroborated with their respective emulsion droplet behavior.

【 授权许可】

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