Performance improvement of the ethylene-vinyl acetate copolymer (EVA) pour point depressant by small dosage of the amino-functionalized polymethylsilsesquioxane (PAMSQ) microsphere

Yao, Bo; Li, Chuanxian; Zhang, Xiaoping; Sun, Guangyu; Zhao, Yu-Guo

doi:10.1016/j.fuel.2018.01.032

Cited by 62 publications

(45 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Various polymers have been used and/or proposed in the literature to inhibit the deposition of waxes . Among these are poly(ethylene‐co‐vinyl acetate) (EVA) and acrylate copolymers with long hydrocarbon chains.…”

Section: Introductionmentioning

confidence: 99%

Influence of the chemical structure of additives poly(ethylene‐co‐vinyl acetate)‐based on the pour point of crude oils

Oliveira

Nunes

Pessoa

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

One of the methods to prevent wax precipitation, during petroleum production, transport, and refining, is the use of polymer additives that can reduce the oil pour point. However, no single additive work for all types of crude oil and this relation is not yet well known. In this study, a family of polymers based on poly(ethylene-co-vinyl acetate), containing hydroxyl groups and long pendant hydrocarbon chains (from C6 to C18), were synthesized and characterized by H 1 nuclear magnetic resonance and solubility test. Four crude oil samples containing different amounts and size distribution of the wax were used. The additive's action is favored by higher contents of iso + cycloalkanes and lower contents of n-paraffins with larger chain sizes. The presence of the CH 3 COO group in the copolymers promoted the lowering of the pour point, supported by a low OH concentration and the presence of a long pendant hydrocarbon chain: the best results were obtained with C10 and C12 chain lengths.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of the chemical structure of additives poly(ethylene‐co‐vinyl acetate)‐based on the pour point of crude oils

Oliveira

Nunes

Pessoa

et al. 2020

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…When the temperature decreases, the viscosity of crude oil increases, thereby increasing the viscosity of the oil, which is then accompanied by deposition [102,103]. Then, at temperatures below 50 • C, the wax appearance temperature (WAT) is higher without the addition of pour point depressant [104]. The addition of pour point depressant was proven to reduce the viscosity of crude oil so that it can increase the flow of low-temperature crude oil [105].…”

Section: Rheological Studiesmentioning

confidence: 99%

Review of Solvents Based on Biomass for Mitigation of Wax Paraffin in Indonesian Oilfield

et al. 2019

View full text Add to dashboard Cite

This paper presents a review of the expectations and challenges of using biomass in the prevention and slowing of paraffin wax deposition that takes place during the crude oil production process. The inhibition of the deposition process involves the use of solvents from biomass that are generally available around the crude oil production field. The processes used to scale down the precipitation of wax include mixing crude oil with the manufacturer's solvent composed of toluene and xylene. The goal is to assess solvents sourced from biomass that are capable to slow down the wax deposition process. Wax appearance temperature is an important characteristic to evaluate the possible wax precipitation of a given fluid. Wax precipitation can be reduced by using some chemical additives, often called the pour point depressant. This additive is expected to be produced from local biomass which can compete with solvents currently produced on the market.

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

Performance improvement of the ethylene-vinyl acetate copolymer (EVA) pour point depressant by small dosage of the amino-functionalized polymethylsilsesquioxane (PAMSQ) microsphere

Cited by 62 publications

References 35 publications

Influence of the chemical structure of additives poly(ethylene‐co‐vinyl acetate)‐based on the pour point of crude oils

Influence of the chemical structure of additives poly(ethylene‐co‐vinyl acetate)‐based on the pour point of crude oils

Review of Solvents Based on Biomass for Mitigation of Wax Paraffin in Indonesian Oilfield

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

Contact Info

Product

Resources

About