Evaluation of the performance of magnetic SiO2/MgFe3O4 nanoparticles as a recyclable demulsifier for the separation of water-in-oil (W/O) emulsions from heavy crude oil

IF 3 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Physics and Chemistry of the Earth Pub Date : 2025-04-10 DOI:10.1016/j.pce.2025.103929

Xiaolei Zhang , Farag M.A. Altalbawy , Hussein Basim Furaijl , Nareshkumar Jadeja , Sherzod Abdullaev , Raman Kumar , Bharti Kumari , Gurpartap Singh , Iman Samir Alalaq , Usama S. Altimari , Abeer Mhussan Jabbar , Mohammed Al-Farouni , Mohammad Mahtab Alam , Al-Ghasem Mohammad Sina

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Abstract

Magnetic silica-based MgFe₃O₄ nanoparticles were synthesized using the ultrasonic method and employed as a separation agent for water-in-oil (W/O) emulsions in crude oil. This study evaluated the impact of combining these nanoparticles with an industrial demulsifier (V-4654) to enhance water separation efficiency while reducing chemical consumption in the Rumaylah oil field, southern Basra. Structural analysis was conducted using FT-IR, XRD, SEM, and VSM techniques. Response surface methodology (RSM) was used to optimize key parameters, achieving a maximum separation efficiency of 97.23 % under optimal conditions: 45 °C, pH 6.20, 300 ppm demulsifier, 7.25 mL water, and 0.040 g nanoparticles. After three reuse cycles, nanoparticles retained 86 % of their efficiency. Deposition time significantly affected separation, increasing efficiency to 72.50 % after 60 min. Adding nanoparticles alongside the demulsifier after 180 min resulted in a 15.41 % increase in water separation compared to using the demulsifier alone. Increasing the nanomagnetic particle concentration further enhanced separation by 16.38 % and reduced deposition time to 3 h. Results demonstrated that mixing time and stability were significantly lower than in conventional separation methods, highlighting the effectiveness of magnetic nanoparticles in crude oil emulsion treatment.

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来源期刊

Physics and Chemistry of the Earth 地学-地球科学综合

CiteScore

5.40

自引率

2.70%

发文量

176

审稿时长

31.6 weeks

期刊介绍： Physics and Chemistry of the Earth is an international interdisciplinary journal for the rapid publication of collections of refereed communications in separate thematic issues, either stemming from scientific meetings, or, especially compiled for the occasion. There is no restriction on the length of articles published in the journal. Physics and Chemistry of the Earth incorporates the separate Parts A, B and C which existed until the end of 2001. Please note: the Editors are unable to consider submissions that are not invited or linked to a thematic issue. Please do not submit unsolicited papers. The journal covers the following subject areas: -Solid Earth and Geodesy: (geology, geochemistry, tectonophysics, seismology, volcanology, palaeomagnetism and rock magnetism, electromagnetism and potential fields, marine and environmental geosciences as well as geodesy). -Hydrology, Oceans and Atmosphere: (hydrology and water resources research, engineering and management, oceanography and oceanic chemistry, shelf, sea, lake and river sciences, meteorology and atmospheric sciences incl. chemistry as well as climatology and glaciology). -Solar-Terrestrial and Planetary Science: (solar, heliospheric and solar-planetary sciences, geology, geophysics and atmospheric sciences of planets, satellites and small bodies as well as cosmochemistry and exobiology).