Novel allyl-ester-based polymers as flow improvers for waxy crude oil

The deposition of paraffin wax from crude oil at low temperatures due to wax deposition, high pour point, high viscosity, and weak flow capability is among the critical and persisting challenges faced by the petroleum industry. In this study, a new para-decyloxy allyl benzoate (I10) was prepared, po...

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Bibliographic Details
Published inChemical Industry & Chemical Engineering Quarterly Vol. 27; no. 4; pp. 395 - 402
Main Authors Ashmawy, Ashraf, Elnaggar, El-Sayed, Mohamed, Manal, Hamam, Mohamed
Format Journal Article
LanguageEnglish
Published Belgrade Association of the Chemical Engineers of Serbia 2021
Subjects
Additives
Alcohol
allyl benzoate
Azobisisobutyronitrile
Benzoates
Chromatography
Copolymerization
Crude oil
Deposition
flow improver
Fourier transforms
Free radical polymerization
Free radicals
Infrared analysis
Infrared spectroscopy
Liquid chromatography
Low temperature
Monomers
NMR
Nuclear magnetic resonance
Paraffin wax
Parameters
Polymerization
Polymers
Potash
Potassium
pour point depressant
Precipitation
Rheological properties
Rheology
Spectrum analysis
Temperature
Toluene
Viscosity
waxy crude oil
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Summary:The deposition of paraffin wax from crude oil at low temperatures due to wax deposition, high pour point, high viscosity, and weak flow capability is among the critical and persisting challenges faced by the petroleum industry. In this study, a new para-decyloxy allyl benzoate (I10) was prepared, polymerized into HI10, and copolymerized with dioctadecyl maleate into MHI10 via the freeradical polymerization method employing azobisisobutyronitrile and toluene as the initiator and solvent, respectively. The prepared monomer was characterized by spectroscopic analyses (Fourier-transform infrared (FT-IR)) and proton nuclear magnetic resonance. Further, the polymers were characterized by FT-IR, and their average molecular weights were determined by gel permeation chromatography. The prepared compounds were taken in different concentrations and then tested as flow improvers of Qarun waxy crude oil using pour point depression and rheological parameters. The results of this test indicated that MHI10 exerted the highest effect on pour point reduction and the rheological parameters (yield value and apparent viscosity). Moreover, an increase in the efficiency of the additives was observed after increasing their concentration from 1000 to 5000 ppm.
ISSN:1451-9372
2217-7434
DOI:10.2298/CICEQ201011008A