Application of a novel magnetic nanoparticle as demulsifier for dewatering in crude oil emulsion

Farrokhi, Fatemeh; Nasr, Mohammad Reza Jafari; Rahimpour, Mohammad Reza; Arjmand, Mehdi; Vaziri, Seyed Ali

doi:10.1080/01496395.2017.1373676

Cited by 31 publications

(9 citation statements)

References 12 publications

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“…This effect might result in the further separation of oil droplets from the emulsion (high E D ). However, if an excessive dosage of demulsifier is applied to the crude O/W emulsion, demulsifier molecules may form a new interfacial film and stabilize the emulsion [54].…”

Section: Plausible Mechanism Of Demulsificationmentioning

confidence: 99%

Magnetically recoverable magnetite-reduced graphene oxide as a demulsifier for surfactant stabilized crude oil-in-water emulsion

et al. 2020

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Oily wastewater, especially water-oil emulsion has become serious environmental issue and received global attention. Chemical demulsifiers are widely used to treat oil-water emulsion, but the toxicity, non-recyclable and non-environmental friendly characteristic of chemical demulsifiers had limited their practical application in oil-water separation. Therefore, it is imperative to develop an efficient, simple, eco-friendly and recyclable demulsifiers for breaking up the emulsions from the oily wastewater. In this study, a magnetic demulsifier, magnetite-reduced graphene oxide (M-rGO) nanocomposites were proposed as a recyclable demulsifier to break up the surfactant stabilized crude oil-in-water (O/W) emulsion. M-rGO nanocomposites were prepared via in situ chemical synthesis by using only one type Fe salt and GO solid as precursor at room temperature. The prepared composites were fully characterized by various techniques. The effect of demulsifier dosage and pH of emulsion on demulsification efficiency (E D) has been studied in detailed. The demulsification mechanism was also proposed in this study. Results showed that M-rGO nanocomposites were able to demulsify crude O/W emulsion. The E D reaches 99.48% when 0.050 wt.% of M-rGO nanocomposites were added to crude O/W emulsion (pH = 4). Besides, M-rGO nanocomposites can be recycled up to 7 cycles without showing a significant change in terms of E D. Thus, M-rGO nanocomposite is a promising demulsifier for surfactant stabilized crude O/W emulsion.

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Section: Plausible Mechanism Of Demulsificationmentioning

confidence: 99%

Magnetically recoverable magnetite-reduced graphene oxide as a demulsifier for surfactant stabilized crude oil-in-water emulsion

et al. 2020

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“…60 The effect of Fe 3 O 4 -Basorol P DB-9935 (M-DB) NPs on demulsification efficiency of light, medium, and heavy crude oils was investigated by Farrokhi et al at different operating temperatures. 111 It was observed that there was a limit range of NP concentration for dewatering of each W/O emulsion based on its viscosity. The optimum concentrations of M-DB were achieved at 1.1.…”

Section: Crude Oil Demulsification Usingmentioning

confidence: 99%

“…The application of the magnetic field increased the dewatering efficiency by 5%−20% and decreased the droplet settling time. 111 Xu et al modified the expanded perlite (EP) by 3aminopropyl triethoxysilane (APTES) to form the EP@ APTES and then grafted Fe 3 O 4 NPs onto the surface of EP@APTES to synthesize the EP@APTES-Fe 3 O 4 composite. EP@APTES-Fe 3 O 4 was used for treating oil-in-water (1 wt % oil) emulsions, and the effects of pH, NP loading, and salt concentrations in water phase were evaluated.…”

Section: Crude Oil Demulsification Usingmentioning

confidence: 99%

“…Magnetic NPs functionalized with various interfacially active groups were used in several investigations for demulsification of crude oil emulsions. ,,− These magnetic NPs were also responsive to external magnetic force and can assist in removing water from emulsions. In research by Peng et al, ethyl-cellulose-grafted Fe 3 O 4 (M-EC) NPs were prepared and tested for water separation from a naphtha-diluted bitumen emulsion.…”

Section: Crude Oil Demulsification Using Nanoparticlesmentioning

confidence: 99%

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Review on Application of Nanotechnology for Asphaltene Adsorption, Crude Oil Demulsification, and Produced Water Treatment

et al. 2021

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Nanotechnology is widely recognized for having important applications in many industries, one of which is oil and gas. Both environmental and cost benefits can be achieved when using nanoparticles for the separation of water and oil or further purification of produced water. More efficient emulsion separation can be achieved by selective adsorption of naturally present stabilizing components or magnetic action applied to nanoparticle-tagged droplets. The focus of this review is given to both nanoparticles and nanocomposites that have been studied with respect to asphaltene adsorption, crude oil demulsification, and produced water treatment, as well as oil spill cleanup and improvement of antifouling resistance of filtration membranes. Asphaltene chemistry and its role in emulsion stabilization are discussed in detail.

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“…To break the stable oil/water interface around the emulsified water droplets, chemical demulsifiers will, by and large, require being more surface active than the natural emulsion stabilizer. Along these lines, they can ameliorate and hasten the phase separation process (Adilbekova et al, ; Farrokhi et al, ). This destabilization is attained by lessening the interfacial tension at the emulsion interface, predominantly by neutralizing the impact of other naturally occurring surfactants that stabilize the emulsion (Schramm, ).…”

Section: Introductionmentioning

confidence: 99%

Novel Star Polymeric Nonionic Surfactants as Crude Oil Emulsion Breakers

El-Sharaky

El-Tabey

Mishrif

2019

J Surfact & Detergents

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The principle focus of this work is to address the issues associated with the existence of water in crude oil, especially corrosion, scaling, viscosity, and catalyst suppression problems. This work aims to prepare star polymer nonionic surfactants based on (2Z,2′Z,2″Z)‐4,4′,4″‐((nitrilotris(ethane‐2,1‐diyl))tris(oxy))tris(4‐oxobut‐2‐enoic acid) to be used as demulsifiers. To achieve this aim, maleic anhydride was reacted with triethanolamine followed by esterification with the polyethylene oxide polypropylene oxide copolymer (PPO‐PEO 5000) and silicone polyether (ABIL B 8843). The chemical structure of the prepared compounds was assessed using gel permeation chromatography (GPC), Fourier transform infrared (FT‐IR), and 1H NMR. Demulsifier performance was determined by quantifying surface tension (ST), dynamic interfacial tension and interfacial rheology, partition coefficient (PC), and relative solubility number (RSN). The efficacy of the prepared emulsion breakers on asphaltenic crude oil emulsion was examined using the bottle test. The research results demonstrated that the prepared breaker based on the silicone polymer was more efficient in breaking the asphaltenic crude oil emulsion than a block copolymer and EO/PO‐based copolymers at 1500 ppm and after 120 min.

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Application of a novel magnetic nanoparticle as demulsifier for dewatering in crude oil emulsion

Cited by 31 publications

References 12 publications

Magnetically recoverable magnetite-reduced graphene oxide as a demulsifier for surfactant stabilized crude oil-in-water emulsion

Magnetically recoverable magnetite-reduced graphene oxide as a demulsifier for surfactant stabilized crude oil-in-water emulsion

Review on Application of Nanotechnology for Asphaltene Adsorption, Crude Oil Demulsification, and Produced Water Treatment

Novel Star Polymeric Nonionic Surfactants as Crude Oil Emulsion Breakers

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