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.

这项研究工作的重点是从天然获得的植物油脂肪酸中开发出两种聚合化合物聚（正十二烷基亚油酸酯-琥珀酸酐）和聚（正十二烷基蓖麻油酸酯-琥珀酸酐），它们随后被评估为蜡质原油的降凝剂（PPD）。通过FTIR和NMR光谱对开发的化学添加剂进行了表征。与原始原油相比，PPD处理的原油的倾点和表观粘度显着降低，这表明原油的低温流动性得到了改善。而且，在管道关闭的情况下，PPD处理的原油的胶凝点降低，储存和损失模量降低，原油的重启流动性得到改善。显微镜研究表明添加化学添加剂后蜡晶体结构的变化。一项重要的研究（冷指测试）表明，在流经管道的过程中，通过添加两种合成的PPD，可以大大减少原油中的蜡沉积，这类似于管道的流动条件。