Covalent functionalized magnetic nanoparticles for crude oil recovery

Fossati, Ana; Alho, Miriam Martins; Jacobo, Silvia E.

doi:10.1016/j.matchemphys.2019.121910

Cited by 15 publications

(5 citation statements)

References 17 publications

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“…Because nanofluids exhibit high thermal conductivity and high stability, they have been widely used in the field of thermal management and energy storage [174][175][176][177]. Investigation relating their applications in chemical production or chemical transformation is not widely seen.…”

Section: Nanofluids Used As Catalysts To Promote Organic Reactionsmentioning

confidence: 99%

Recent advances of nanofluids in micro/nano scale energy transportation

Liu

Qiao

et al. 2021

Renewable and Sustainable Energy Reviews

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Section: Nanofluids Used As Catalysts To Promote Organic Reactionsmentioning

confidence: 99%

Recent advances of nanofluids in micro/nano scale energy transportation

Liu

Qiao

et al. 2021

Renewable and Sustainable Energy Reviews

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“…Often magnetic relaxation is studied by thermoremanent (TRM) measurements, showing an exponential-like dependence of the magnetic moment with time and the SSG transition temperature may be observed in samples with the strong surface disorder and significant interparticle magnetic interactions [11,21]. Another useful method to analyze the magnetic spin relaxation phenomena in magnetic NPs is Argand diagrams [14,15].…”

Section: Argand Diagramsmentioning

confidence: 99%

“…By combining the NMOs with MWCNTs, an enhancement in the adsorptive and magnetic properties can be obtained. In particular, the recent applications of magnetic NPs, functionalized NMOs, and solid magnetic matrices have also been employed for oil-water separation [20][21][22]. By magnetizing the oil with magnetic nanopowders, the oil can easily be covered and then separated magnetically with a permanent magnet.…”

Section: Introductionmentioning

confidence: 99%

AC Susceptibility Studies under DC Fields in Superspinglass Nanomaghemite-Multiwall Carbon Nanotube Hybrid

2021

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Magnetic properties of maghemite (γ-Fe2O3) nanoparticles grown on activated multiwall carbon nanotubes have been studied by alternating current (AC) magnetic susceptibility experiments performed under different temperatures, frequencies, and applied magnetic fields. Transmission electron images have suggested that the γ-Fe2O3 nanoparticles are not isolated and have an average size of 9 nm, but with a relatively broad size distribution. The activation energies of these 9 nm γ-Fe2O3 nanoparticles, determined from the generalized Vogel–Fulcher relation, are reduced upon increasing the direct current (DC) field magnitude. The large activation energy values have indicated the formation of a superspinglass state in the γ-Fe2O3 nanoparticle ensemble, which were not observed for pure γ-Fe2O3 nanoparticles, concluding that the multiwall carbon nanotubes favored the appearance of highly concentrated magnetic regions and hence the formation of superspinglass state. Magnetic relaxation studies, using Argand diagrams recorded for DC probe fields (<20 kOe) below the magnetic blocking temperature at 100 and 10 K, have revealed the presence of more than one relaxation process. The behavior of the ensemble of γ-Fe2O3 nanoparticles can be related to the superspinglass state and is also supported by Almeida–Thouless plots.

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“…In addition, magnetic nanomaterials (such as Fe, Co, Ni and Co 3 O 4 ) have strong magnetic loss to microwave. Therefore, by combining graphene with magnetic nanoparticles, graphene/magnetic nanocomposites with both electrical loss and magnetic loss can be obtained, which is conducive to widening the absorption band and impedance matching, and improving the microwave absorption capacity [130][131][132][133][134][135][136][137][138]. When applied to the development of heavy oil wells, the penetration depth of microwave can be increased, and the effect of viscosity reduction and stimulation can be improved.…”

Section: Heavy Oil Recoverymentioning

confidence: 99%

Applications of Graphene and Its Derivatives in the Upstream Oil and Gas Industry: A Systematic Review

Ke-jian

Tang

et al. 2020

Nanomaterials

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Graphene and its derivatives, with their unique two-dimensional structures and excellent physical and chemical properties, have been an international research hotspot both in the research community and industry. However, in application-oriented research in the oil and gas industry they have only drawn attention in the past several years. Their excellent optical, electrical, thermal and mechanical performance make them great candidates for use in oil and gas exploration, drilling, production, and transportation. Combined with the actual requirements for well working fluids, chemical enhanced oil recovery, heavy oil recovery, profile control and water shutoff, tracers, oily wastewater treatment, pipeline corrosion prevention treatment, and tools and apparatus, etc., this paper introduces the behavior in water and toxicity to organisms of graphene and its derivatives in detail, and comprehensively reviews the research progress of graphene materials in the upstream oil and gas industry. Based on this, suggestions were put forward for the future research. This work is useful to the in-depth mechanism research and application scope broadening research in the upstream oil and gas industry.

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Covalent functionalized magnetic nanoparticles for crude oil recovery

Cited by 15 publications

References 17 publications

Recent advances of nanofluids in micro/nano scale energy transportation

Recent advances of nanofluids in micro/nano scale energy transportation

AC Susceptibility Studies under DC Fields in Superspinglass Nanomaghemite-Multiwall Carbon Nanotube Hybrid

Applications of Graphene and Its Derivatives in the Upstream Oil and Gas Industry: A Systematic Review

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