Reduction of Paraffin Precipitation and Viscosity of Brazilian Crude Oil Exposed to Magnetic Fields

Gonçalves, J. L.; Bombard, Antônio J. F.; Soares, D. A. W.; Alcantara, Glaucia Braz

doi:10.1021/ef901302y

Cited by 46 publications

(24 citation statements)

References 12 publications

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“…In recent years, nanoparticle is selected to develop nanocomposite pour point depressant (NPPD) (AlSabagh et al 2016;Gao et al 2017;He et al 2016;Huang et al 2018Huang et al , 2019Norrman et al 2016;Song et al 2016;Tu et al 2018;Yang et al 2017;Yao et al 2018;Zhao et al 2018). Since the surface effect generated in nanometer dimension, nanoparticle possesses unique physical-chemical properties and has aroused tremendous attention in synthesizing various Edited by Xiu-Qiu Peng function materials (Guo et al 2004;Ganeeva et al 2016;Li et al 2018;Lim et al 2018;Zhang et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of magnetic field and nanocomposite pour point depressant on the yield stress of waxy model oil

et al. 2020

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Yield stress, as the key parameter to characterize the network strength of waxy oil, is important to the petroleum pipeline safety. Reducing the yield stress of waxy oil is of great significance for flow assurance. In this study, the effect of alternating magnetic field (intensity, frequency) on the yield stress of a waxy model oil with nanocomposite pour point depressant (NPPD) is systematically investigated. An optimum magnetic field intensity and frequency is found for the reduction in yield stress. When adding with NPPD, the heterogeneous nucleation of NPPD contributes to the reduction in yield stress for waxy model oil. Interestingly, the magnetic field is helpful for the modification of yield stress at a lower frequency and intensity before the optimal value; however, the modification is found to be weakened when the magnetic field is further increased after the optimal value. Possible explanation is proposed that the aggregation morphology of wax crystal would be altered and results in the release of wrapped oil phase from the network structure under the magnetic field.

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Section: Introductionmentioning

confidence: 99%

Synergistic effect of magnetic field and nanocomposite pour point depressant on the yield stress of waxy model oil

et al. 2020

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“…In order to reduce or eliminate paraffin deposition, the commonly used methods are mechanical cleaning (Poole et al 2008), coating the pipe to reduce paraffin adhesion (Dotto et al 2006), electric heating (Samigullin et al 2016;Danilović et al 2010;Zheng 2012), ultrasonic treatments (Seow 1991;Gonçalves et al 2010;Tung et al 2001), the use of paraffin inhibitors (Gilles et al 2015;Yang et al 2015;Jung et al 2016;Ridzuan et al 2016) and microbial removal (He et al 2003;Liu et al 2012;Xiao et al 2012;Yi et al 2009), etc. Among them, mechanical cleaning uses a special scraper to remove paraffin and soft wax deposits from the inner wall of the pipeline.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional anti-wax coatings for paraffin control in oil pipelines

Bai

2019

Pet. Sci.

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Paraffin deposition is a severe global problem during crude oil production and transportation. To inhibit the formation of paraffin deposits, the commonly used methods are mechanical cleaning, coating the pipe to provide a smooth surface and reduce paraffin adhesion, electric heating, ultrasonic and microbial treatments, the use of paraffin inhibitors, etc. Pipeline coatings not only have the advantages of simple preparation and broad applications, but also maintain a long-term efficient and stable effect. In recent years, important progress has been made in research on pipe coatings for mitigating and preventing paraffin deposition. Several novel superhydrophilic organogel coatings with low surface energy were successfully prepared by bionic design. This paper reviews different types of coatings for inhibiting wax deposition in the petroleum industry. The research prospects and directions of this rapidly developing field are also briefly discussed.

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“…It has been reported that polymers, graphene, graphene oxide (GO) and reduced GO could reduce the viscosity of fluids [21][22][23][24][25] . To reduce the viscosity and to improve the fluidity of crude oils and heavy petroleum fractions, one approach is to break or disperse the asphaltene-resin-involved association aggregates using various additives, such as synthetic viscosity reducers (VRs) [26,27] , lighter blending components [28] , electric or magnetic fields [29,30] , heterogeneous catalysts [31,32] , and nanoparticles [33] . A spectrum of polymers has also been synthesized to improve the fluidity [34][35][36][37] .…”

Section: Introductionmentioning

confidence: 99%