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Studies of poly ethylene acrylic acid derivatives as pour point depressants of waxy crude oils

H.I.Al-Shafey, R.S.Abdel Hameed, E.A.Ismail, O.E.El Azabawy

This study aims to prepare some compounds based on PEAA co-polymer. PEAAwas reacted with alcohols and amines then grafted with vinyl acetate in the presence of PTSA as catalyst and xylene as solvent to produce graft co-polymers. The influence of PEAA graft co-polymer (PEAA- g-VA), as flow improver, on the viscosity and pour point of some Egyptian waxy crude oils were studied. The produced gravt co polymer was purified and characterized by FTIR and 1HNMR. The rheological behaviors were measured at different concentration (from 1000 to 5000 ppm) and temperatures below and equal the pour point temperature. The copolymer leads to a large reduction in the pour point of samples of Khalda Petroleum Co. (KhPC) crude oils. These reductions of pour point temperature were depending on the composition and location of Khalda crude oil. Thus establishing the large efficiency of the products synthesized in this work.