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首页> 外文期刊>Journal of Petroleum Science & Engineering >Synthesis and performance evaluation of poly (fatty esters-co-succinic anhydride) as pour point depressants for waxy crude oils
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Synthesis and performance evaluation of poly (fatty esters-co-succinic anhydride) as pour point depressants for waxy crude oils

机译:聚(脂肪酯 - 共琥珀酸酐)的合成与性能评价,作为蜡状原油的倾点抑制剂

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摘要

This research work focuses on the development of two polymeric compounds poly (n-dodecyl linoleate -co- succinic anhydride) and poly (n-dodecyl ricinoleate -co- succinic anhydride) from the naturally obtained vegetable oils fatty acids, which were subsequently evaluated as pour point depressants (PPDs) for a waxy crude oil. The developed chemical additives were characterized by FTIR and NMR spectroscopies. Significant reduction in pour point and apparent viscosities were obtained for the PPD treated crude oils compared to virgin crude oil, which indicated improvement in low temperature flow properties of the crude oil. Moreover, reduction in gelation point, storage and loss modulus of PPD treated crude oils exhibit improvement in the restart flowability of crude oil in case of pipeline shut down. Microscopic studies revealed the changes in the wax crystal structures after addition of chemical additives. One of the important studies, cold finger test showed that, wax deposition from the crude oil was considerably reduced by the addition of the two synthesized PPDs during flow through tubing, resembling the pipeline flow condition.
机译:该研究工作侧重于从天然所得植物油脂肪酸的两种聚合物化合物聚(N-十二烷基锂酸酯-CO-琥珀酸酐)和聚(n-十二烷基蓖麻油酸酯-CO-琥珀酸酐)的发展,随后评估为倾吐抑郁药(PPDS)用于蜡质原油。发育的化学添加剂的特征在于FTIR和NMR光谱。与原油原油相比,PPD处理的原油获得了倾点和表观粘度的显着降低,这表明原油的低温流动性能改善。此外,PPD处理原油的凝胶点降低,储存和损失模量在管道关闭时,原油的重启流动性提高了原油。微观研究揭示了添加化学添加剂后蜡晶体结构的变化。一种重要的研究,冷手指测试表明,通过在流过管道的流动过程中加入两种合成的PPD来显着降低了原油的蜡沉积,类似于管道流动条件。

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