Semi-continuous edible oil physical refining equipment

Physical refining is the process of removing the non-glyceride components in the crude oil by degumming,deacidifying,decolorizing  and deodorizing the crude oil.

Among them,deacidification is one of the important processes of oil refining.It is to remove free fatty acids in crude oil,and at the same  time  remove some impurities such as pigments,

phospholipids,hydrocarbons and mucus quality and  beneficial ingredients such as tocopherols,sterols,sterol esters and the like.

Physical deacidification is a method of removing grease,unsaponifiable matter and odorous substances by passing steam through grease under high vacuum conditions.Compared with chemical deacidification,this methodhas  no soap feet,so the oil consumption is low,the oil quality is high,and the operation is simple. It  requires less steam, water and  power,requires lower investment,and  some  heat-sensitive  pigments(carotenoids)and  odor  The  material is also removed by steam stripping.Compared with alkali refining and deacidification,physical deacidification has the advantages of large  output,no soap foot generation,reduced overflow and  reduced environmental   pollution;but there are also very strict requirements for crude oil pretreatment, which is not suitable for heat-sensitive cottonseed oil,and Grease produces disadvantages such as polymers and transacids athigh temperatures.