The Development and Mechanism of Crude Oil Pour Point Depressant: A Mini-Review

Pour point depressant added in the process of waxy crude oil transmission can effectively improve the fluidity. This is one of the effective ways to achieve crude oil transmission at room temperature. This paper expound the development of pour point depressant, wax crystallization process, classification of pour point depressant, mechanism of the pour point depressant, conditions of limiting the effect of crude oil pour point and application status. Keywords: Pour point depressant, crude oil, mechanism, wax, restrictions, morphology.