Effect of the Polymer Structure Diversity on the Eddies Suppression of Basrah Light Crude Oil Turbulent Flow | ||
| Egyptian Journal of Chemistry | ||
| Article 15, Volume 64, Issue 7, July 2021, Pages 3365-3378 PDF (1.44 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2021.61114.3317 | ||
| Authors | ||
| Mahir Asaad Jalal* 1; Moayed Naeem Khalaf2; Mouayed AbdulAlee Al-Abdulsayyed2 | ||
| 1Department of polymer technology, Polymer research center, University of Basrah, Basrah, Iraq. | ||
| 2Department of Chemistry, College of Science, University of Basrah, Basrah, Iraq | ||
| Abstract | ||
| Poly(pentaerythritol adipate), poly(pentaerythritol sebacate), and poly(pentaerythritol hexadecandioate) derivatives containing different length alkyl branches were synthesized by two subsequent steps; the reaction of pentaerythritol with (C8-C16) linear aliphatic monocarboxylic acids and then, polymerization of products with (C6-C16) linear aliphatic dicarboxylic acids, using 1% para toluene sulfonic acid as a catalyst. The products were purified and characterized by FTIR, 1H NMR, and 13C NMR spectroscopy. End group analysis was also used as a molecular weight determination technique. The drag-reducing properties of those polymers were investigated in the turbulent flow of Basrah light crude oil using a closed-loop circulation system. Some were found to perform very well DRA and drag reduction efficacy of polymer was further found to be dependent on flowrate, polymer concentration, medium-temperature, and its chemical structure. Also, the effect of the imposed mechanical shear on the polymer stability as a function of time has been investigated using a cylindrical rotator device. It was observed that distance between branch points plays a direct role in contributing to the polymer performance and its mechanical stability. | ||
| Keywords | ||
| Poly(pentaerythritol adipate); Poly(pentaerythritol sebacate); Poly(pentaerythritol hexadecandioate ); Drag reducing agent; Basrah light crude oil; Esterification | ||
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