Influence of alkyl methacrylate-maleic anhydride-1-hexadecene terpolymers and their mixtures with ethylene-vinyl acetate as pour point depressants in diesel fuel

Wax deposition from crude oil that blocks the pipeline and increases the viscosity of the fluid is considered as a serious challenge for petroleum transportation. Employment of chemical additives, the so-called pour point depressants (PPDs), is widely used to solve this problem. Among them are the ethylene-vinyl acetate (EVA) copolymers (EVAc), containing a polyethylene segment along the backbone with vinyl acetate. To improve the performance of EVAc as PPD, the compositions of this polymer with crude gossypol (CG), isolated from the refined cottonseed oil soapstock, were prepared by joint milling in a ball mill. Prepared compositions were characterized by Fourier transform infrared (FTIR), ultraviolet (UV), and nuclear magnetic resonance (NMR) spectroscopy. The pour point and viscosity of the crude oil from the Akshabulak oil field (Kazakhstan) were studied. The compositions with 10, 20, and 25 wt% of CG demonstrate better efficiency as PPD for crude oil than EVAc at the dosage of PPD of 50, 100, 250, and 500 ppm. The improved properties of the obtained PPD in comparison with the commercial EVAc is explained by the appearance of additional nonpolar and polar groups caused by the formation of the EVAc/CG composition.

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Research on Performance of the Monomers about Acrylic Pour Point Depressant

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.518-523.884 ◽

2012 ◽

Vol 518-523 ◽

pp. 884-887 ◽

Cited By ~ 1

Author(s):

Jing Chang Wang ◽

Jian Tao Zhao ◽

Zhong Hua Du ◽

Chun Ming Liu ◽

Xu Dong

Keyword(s):

Maleic Anhydride ◽

Crude Oil ◽

Vinyl Acetate ◽

Functional Groups ◽

Pour Point ◽

Pour Point Depressant ◽

Point Depressant ◽

Pour Point Depressants

Kinds of pour point depressants were prepared from common monomers, octadecyl acrylate, maleic anhydride, styrene, acrylamide and vinyl acetate. Because the monomers have various functional groups, the performance of the polymers that were prepared from different monomers showed different. The performance of the pour point depressants on solubility in diesel and the drop of pour point on Daqing crude oil was studied. The results showed that styrene and vinyl acetate could increase the solubility of the pour point depressants; maleic anhydride and acrylamide could improve the drop of crude oil pour point; tercopolymer pour point depressants are more effective on the flow of crude oil than dimeric polymers, the highest drop of pour point was 14°C. Meanwhile, compostional pour point depressants are the best of them.

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Production of pour point depressants for diesel fuel by copolymerization of ethylene with vinyl acetate

Chemistry and Technology of Fuels and Oils ◽

10.1007/bf00725409 ◽

1984 ◽

Vol 20 (10) ◽

pp. 485-488

Author(s):

V. I. Ivanov ◽

G. G. Krasnyanskaya ◽

F. V. Oktyabr'skii ◽

N. V. Ermakova

Keyword(s):

Vinyl Acetate ◽

Diesel Fuel ◽

Pour Point ◽

Pour Point Depressants

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Research on combined-pour point depressant of methacrylate-acrylamide copolymers and ethylene-vinyl acetate copolymers for diesel fuel

Fuel ◽

10.1016/j.fuel.2020.120002 ◽

2021 ◽

Vol 290 ◽

pp. 120002

Author(s):

Hualin Lin ◽

Suya Yin ◽

Baoting Su ◽

Yuan Xue ◽

Sheng Han

Keyword(s):

Vinyl Acetate ◽

Diesel Fuel ◽

Pour Point ◽

Ethylene Vinyl Acetate ◽

Pour Point Depressant ◽

Point Depressant ◽

Acrylamide Copolymers

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Effect of PEgMAH on Tensile Properties and Swelling Behaviour of Recycled High Density Polyethylene/Ethylene Vinyl Acetate/Waste Tyre Dust (r-HDPE/EVA/WTD) Composites

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.554.137 ◽

2014 ◽

Vol 554 ◽

pp. 137-140 ◽

Cited By ~ 1

Author(s):

A.R.H. Fatimah ◽

Ikmal Hakem Abdul Aziz ◽

A.Ghani Supri

Keyword(s):

Maleic Anhydride ◽

Tensile Properties ◽

Vinyl Acetate ◽

High Density Polyethylene ◽

Ethylene Vinyl Acetate ◽

High Density ◽

Rotor Speed ◽

Swelling Behaviour ◽

Dust Loading ◽

Waste Tyre

The effect of polyethylene grafted maleic anhydride as a compatibilizer on the tensile properties, and swelling behavior of recycled high density polyethylene/ethylene vinyl acetate/ waste tyre dust (r-HDPE/EVA/WTD) composites was studied. r-HDPE/EVA/WTD composites with different tyre dust loading and the addition of polyethylene grafted maleic anhydride (PEgMAH) were prepared with Brabender Plasticorder at temperature of 160°C and rotor speed of 50 rpm. The result indicated that r-HDPE/EVA/WTD/PEgMAH composites exhibit higher tensile strength, modulus of elasticity, and mass swell resistance than r-HDPE/EVA/WTD composites.

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