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Physical refining

Physical refining

Physical refining is the crude oil after pretreatment, degumming, bleaching, in heating and high vacuum conditions, by means of direct steam distillation principle, process the oil than three ester relative volatility much lower free fatty acids and low molecular odor substances discharged together with the steam, it also can be called "the sour water stripper" or "distillation acid". Physical refining process also has batch, semi continuous and continuous type three. The whole refining process includes crude oil pretreatment (filter), degumming, washing, bleaching and degassing - distillation step acid etc..

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