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Edible oil refining is a process to improve the quality of edible oil. Through the four stages of degumming, deacidification, decolorization and deodorization, the peptized impurities, free fatty acids, pigments and unpleasant odors in the crude oil are removed and changed. The flavor and color of the edible oil enhance the stability of the edible oil, thereby obtaining a high-quality edible oil. According to the continuity of the refining operation, there are three ways of edible oil refining: intermittent refining of edible oil, semi-continuous refining of edible oil and full continuous refining of edible oil. Therefore, when customers plan to open an edible oil refinery, they must first choose a suitable edible oil refining method. There are three main factors that affect the choice of edible oil refining methods: the output of the edible oil refinery, the acid price of the crude oil to be refined, and the customer's investment budget. Let's take a look at the details together.

1. The size of the output

The edible oil refining method can be selected according to the output of the edible oil refinery. Intermittent refining of edible oil is carried out in batches, and is generally suitable for small-scale production, such as 1-10 tons/day. The semi-continuous refining process of edible oil is carried out partly in batches and partly in continuous operation, which can achieve economic and manpower saving effects. Generally suitable for medium output, such as 10-50 tons/day. The operation process of edible oil full continuous refining is fully continuous and does not require too much manpower to operate. Generally applicable to the output of 30 tons/day or more. Of course, Henan Zhongxing can also choose suitable edible oil refining methods according to customer needs and customize edible oil refining equipment.

2. The acid value of crude oil

The acid value of crude oil also affects the choice of edible oil refining methods. For crude oils with relatively high acid value, such as palm oil, rice bran oil, coconut oil, etc., it is necessary to choose the edible oil refining method with better deacidification effect. Generally speaking, intermittent refining of edible oil uses chemical deacidification, that is, adding lye to crude oil to cause a neutralization reaction to remove free fatty acids and reduce acid value. The semi-continuous refining of edible oil and the full continuous refining of edible oil both reduce the acid value through physical deacidification, that is, direct steam is introduced into the deodorization tower to remove free fatty acids in the crude oil. The effect of physical deacidification is generally better than that of chemical deacidification. In addition, the fat loss of physical deacidification is relatively small, and the value of the by-product fatty acid produced is also higher. Therefore, if the acid value of crude oil is relatively high and the market has high requirements for refined oil, it is recommended to choose edible oil semi-continuous refining or edible oil full continuous refining.

3. The level of investment budget

The investment budget greatly influences the choice of edible oil refining methods. The equipment configuration for intermittent refining of edible oil is mainly four tanks, including two degumming and deacidification tanks, decolorization tank and deodorization tank. The cost is relatively low, so it is suitable for edible oil refineries with lower investment budgets. The semi-continuous refining of edible oil uses a deodorizing tower to replace the deodorizing tank, and the equipment for full continuous refining of edible oil is mainly a decolorizing tower and a deodorizing tower. The cost of equipment used in these two edible oil refining methods is relatively high, which is suitable for edible oil refineries with high investment budgets.

For setting up an edible oil refinery, choosing the right edible oil refining method is just a small step. The important thing is to buy edible oil refining equipment with guaranteed quality. Henan Zhongxing is a edible oil production equipment manufacturer with more than ten years of production experience. The quality of the equipment is our important business card. In addition, Henan Zhongxing's production technology is also constantly being updated, the purpose is to provide customers with guaranteed quality and reasonable production rate of edible oil production equipment. So, if you need edible oil refining equipment, please feel free to contact us. Our staff will take you to visit the factory and let you personally see the processing process of the edible oil production equipment. Looking forward to your visit.