A nonionic natural-based Gemini surfactant synthesized from rice bran oil and its application in enhanced crude oil recovery

IF 5.3 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Liquids Pub Date : 2025-02-13 DOI:10.1016/j.molliq.2025.127092

Iman Nowrouzi , Amir H. Mohammadi , Abbas Khaksar Manshad

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Abstract

This study addresses the challenge of using environmentally friendly materials and poor performance and high optimal concentration of natural and natural-based surfactants in enhanced oil recovery (EOR) process by synthesizing a novel, nonionic Gemini surfactant from rice bran oil as a natural and sustainable source, offering an alternative to traditional surfactants. Key tests, including critical micelle concentration (CMC) determination via surface tension, salt compatibility, adsorption onto porous media, wettability alteration, and carbonate plug injection, demonstrate the surfactant’s performance in EOR process. The problem of high interfacial tension (IFT) in oil reservoirs, which limits oil recovery, is mitigated using this surfactant due to its effective IFT reduction and stability in high-salinity environments. The surfactant achieved a low CMC of 975 ppm in the water–oil system at 75 °C, indicating efficient performance at lower concentrations than typical natural and natural-based surfactants. A minimum IFT value of 0.648 mN/m was obtained at optimum salinity. The surfactant was fully compatible with up to 80 K ppm salinity and relatively compatible with up to a salinity of 140,000 ppm. Following surfactant injection, oil recovery increased significantly, reaching a recovery factor of 73.3 % original oil-in-place (OOIP) with a 16.8 % improvement. This study demonstrates the potential of rice bran oil-derived Gemini surfactants as a natural-based, effective solution for EOR applications, advancing beyond conventional methods in the literature.

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来源期刊

Journal of Molecular Liquids 化学-物理：原子、分子和化学物理

CiteScore

10.30

自引率

16.70%

发文量

2597

审稿时长

78 days

期刊介绍： The journal includes papers in the following areas: – Simple organic liquids and mixtures – Ionic liquids – Surfactant solutions (including micelles and vesicles) and liquid interfaces – Colloidal solutions and nanoparticles – Thermotropic and lyotropic liquid crystals – Ferrofluids – Water, aqueous solutions and other hydrogen-bonded liquids – Lubricants, polymer solutions and melts – Molten metals and salts – Phase transitions and critical phenomena in liquids and confined fluids – Self assembly in complex liquids.– Biomolecules in solution The emphasis is on the molecular (or microscopic) understanding of particular liquids or liquid systems, especially concerning structure, dynamics and intermolecular forces. The experimental techniques used may include: – Conventional spectroscopy (mid-IR and far-IR, Raman, NMR, etc.) – Non-linear optics and time resolved spectroscopy (psec, fsec, asec, ISRS, etc.) – Light scattering (Rayleigh, Brillouin, PCS, etc.) – Dielectric relaxation – X-ray and neutron scattering and diffraction. Experimental studies, computer simulations (MD or MC) and analytical theory will be considered for publication; papers just reporting experimental results that do not contribute to the understanding of the fundamentals of molecular and ionic liquids will not be accepted. Only papers of a non-routine nature and advancing the field will be considered for publication.