Production of cotton phosphatide concentrate as a surfactant to increase the flowability of high-viscosity oils through pipeline

This article examines the issues of obtaining phosphatide concentrate from cottonseed oil.The results of the analysis of the physicochemical parameters of phospholipids obtained by hydration of cottonseed oil along with useful biologically active substances in the composition of phospholipids contain toxic gossypol within 2.2-3.1% of their total mass.This does not allow using these phospholipids for food purposes.Gas chromatographic analysis showed that the main fatty acids in these phospholipids are: palmitic (22.2-24.6%),oleic (17.0-17.4%)and linoleic (55.1-57.4%).It was found that in forepress cottonseed oil the content of non-hydratable phospholipids fluctuates within 0.2-0.5% of the oil mass.When using microwave radiation, the quality of the obtained technical cotton phosphatide concentrates has a higher content of phospholipids (59.8%), brown pigments (22.12 mg/g) than the product obtained in the traditional way.For the purpose of using to improve the fluidity of high-viscosity oils in pipelines.It was found that with an increase in the content of technical cotton phosphatide concentrates in the composition of high-viscosity oil of the Dzharkurgan field, its dynamic shear stress and dynamic viscosity decrease.With the addition of 500 g/t of technical cotton phosphatide concentrates, the values of dynamic shear stress and dynamic viscosity of oil from the Dzharkurgan field are 6.9 Pa and 18.7 Pa•s, respectively.For oil from the Mirshadi field, these figures are 13.6 Pa and 70.4 Pa•s, respectively.The positive effect of the addition of technical cotton phosphatide concentrates on increasing the flow properties of high-viscosity local oils can be explained by the fact that they contain phospholipids, monoand diacylglycerols and other substances with SAP

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