Study of the Morphology of Wax Crystals in the Presence of Ethylene-co-vinyl Acetate Copolymer

Ansaroudi, H. R. Jafari; Vafaie-Sefti, Mohsen; Masoudi, Sh.; Behbahani, Taraneh Jafari; Jafari, Hojat

doi:10.1080/10916466.2011.632800

Cited by 55 publications

(44 citation statements)

References 8 publications

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“…They also stated that the EVA copolymers could remarkably reduce the size of wax crystals, as well as change the particle from plate-like to a more compact and spherical morphology. Very similar phenomenon was obtained by Jafari Ansaroudi et al (2013) who used scanning electron microscopy (SEM) to observe the morphology of wax crystal as shown in Fig. 3.…”

Section: Ethylene-vinyl Acetate (Eva)supporting

confidence: 48%

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Recent advances on mitigating wax problem using polymeric wax crystal modifier

Wei

2014

J Petrol Explor Prod Technol

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The petroleum industry has addressed wax problems since its inception. Every year, considerable resources are expended on wax removal, which accordingly cause significant economic loss. As one of the materials in chemical treatments, polymeric compounds referred to as ''wax-crystal modifier'', is being widely used to improve flow properties and/or combat wax deposition for waxy crude oils. This article reviews the recent achievements with regard to the flow improvement and wax inhibition of waxy oils using traditional polymeric wax crystal modifiers, such as ethylene-vinyl acetate (EVA), poly(ethylene-butene) (PEB), and polyethylenepoly(ethylene-propylene) (PE-PEP), as well as the development of novel polymers for potential use in the near future. The goal of this review is to assist people understand the advances in this topic.

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Section: Ethylene-vinyl Acetate (Eva)supporting

confidence: 48%

“…1 (Al-Yaari 2011). Ansaroudi et al 2013) In this paper, recent works related to flowability improvement and/or wax inhibition of waxy oils using conventional and novel polymeric wax crystal modifiers are reviewed, aiming to provide an up to date synopsis of this issue.…”

Section: Introductionmentioning

confidence: 99%

Recent advances on mitigating wax problem using polymeric wax crystal modifier

Wei

2014

J Petrol Explor Prod Technol

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“…Alcazar-Vara investigated the wax precipitation in Mexican crude oils [21]. In the previous works, hydrocarbon precipitation was investigated in Iranian crude oil by Jafari Behbahani et al [22][23][24][25][26][27][28][29][30][31][32][33].…”

Section: Compositionmentioning

confidence: 99%

The effect of amino [60] fullerene derivatives on pour point and rheological properties of waxy crude oil

Behbahani¹,

Beigi²,

Taheri³

et al. 2015

Journal of Molecular Liquids

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“…Thus, reduce the crystal nucleation and growth rate [13]. The presence of the small amount of inhibitor concentration such as EVA and MA, can coalesce with wax crystals and interfere the crystal growth of the crystals [14], [15].…”

Section: Introductionmentioning

confidence: 99%

Molecular Recognition of Wax Inhibitor Through Pour Point Depressant Type Inhibitor

2014

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The deposition or crystallization of wax paraffin from crude oils is one of the crucial issues faced in the petroleum industry particularly when the temperature of the crude oil is below the wax appearance temperature (WAT). Pour Point Depressants (PPDs) chemical is proven to be an efficient way to solve this problem. This study investigated poly(ethylene-co-vinyl acetate(EVA)) and Poly(maleic anhydride-alt-1-octadecene)(MA) polymer inhibitors on the van der Waals intermolecular interaction between the major wax component molecule n-octacosane C 28 H 58 , via molecular dynamics simulation (MD) technique on Material Studio 5.5 software Package. COMPASS force field was applied to analyse the desired structural property, Radial Distribution Function (RDF). The results showed that the radial distribution function and g (r) value is able to give the insight on which particular type of fuctional atoms were benefit to inhibit the self-agglomerate of the wax crystal formation. The presence of carbonyl oxygen in EVA plays a significant role to inhibit the wax formation through the van der Waals interaction between active hydrogen atoms in n-octacosane molecule. Therefore the chances of wax inhibition in octacosane is higher by introduced EVA as inhibitor compared to MA.

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Study of the Morphology of Wax Crystals in the Presence of Ethylene-co-vinyl Acetate Copolymer

Cited by 55 publications

References 8 publications

Recent advances on mitigating wax problem using polymeric wax crystal modifier

Recent advances on mitigating wax problem using polymeric wax crystal modifier

The effect of amino [60] fullerene derivatives on pour point and rheological properties of waxy crude oil

Molecular Recognition of Wax Inhibitor Through Pour Point Depressant Type Inhibitor

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