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The important step is deacidification . The aim is removing the free fatty acid of the crude oil

1:pretreatment

Pump the estimated crude oil into the tank and stir it uniformly. Then we take the sample to check the acid value

2: neutralization

We should put the estimated lye into the crude oil while we must stir it quicly.. The time for putting the lye is 5-10Minutes, we keep on stirring it for 30minutes after the lye is in the crude oil.

3:static settlement  

4:washing

fter the static settlement. We let the soap leavings go from the tank bottom . then we adjust the oil tempreture to 70-75°C. In order to remove the residual lye and soap. The hot water is 10-15% of the oil.

5:drying

We must dry the oil because it has 0.5% more or less water in the oil.

6:fliter

We filter the oil after the tempreture is lower 70°C by Dewatering and cooling

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