1-10T Crude Oil Refining Machine

The refining process of edible vegetable oils can be divided into general edible oil refining, High grade edible oil refining and special oil refining.

Product Description

The refining process of edible vegetable oil can be divided into ordinary edible oil refining, advanced edible oil refining and special oil refining. The refining process varies according to the use and quality requirements of the oil. Small-capacity crude oil refining generally adopts batch refining. Small footprint, easy operation and low cost.

Batch Refining Process

1. The process of removing colloidal impurities in crude oil is called degumming. Because the colloidal impurities in crude oil are mainly phospholipids. Degumming is often referred to as dephosphorization in industrial production. Degumming before alkali refining can reduce the loss of neutral oil, improve the quality of alkali refining, save the amount of alkali, and obtain valuable by-products phospholipids.
There are many degumming methods, such as hydration degumming, acid refining degumming, adsorption degumming, chemical reagent degumming, etc. The method we currently use is hydration degumming.

2. The function of the decolorizing section is mainly to remove the pigments in the oil, and at the same time, it can also remove the trace metals in the oil, remove the residual traces of soap particles, phospholipids and other colloids and some odorous substances, and remove polycyclic aromatic hydrocarbons and residues. Pesticides, etc. Adsorption decolorization: Activated clay is usually used as a decolorizing agent.

3. Oil deodorization is a process of removing odorous substances by steam distillation under high temperature and high vacuum conditions by using the difference in volatility between odorous substances in oil products and fatty acid triglycerides.
The above process flow is the batch refining process of general oil products.


Dewaxing process

Most vegetable oils contain traces of waxes, mainly from the husks of oilseeds. The hull has a high wax content, and the prepared crude oil also has a high wax content. Waxes are soluble in oil at temperatures above 40 degrees. Usually, crude oil contains a certain amount of wax. The wax content of various crude oils varies greatly, most of which are very small, so they do not need to be considered during oil production and processing; but some have higher wax content, such as corn germ oil (containing 0.01% 0.04%) sunflower seeds Oil (containing 0.06%-0.2%) and rice bran oil (containing 1%-5%) need to be combined with dewaxing/fractionation.

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