How does crude oil refining work step by step?

Crude oil refining not only improves the quality of oil and removes impurities, but also makes the final product meet the high standards of the country and the market. Crude oil refining usually includes four major steps: degumming, deacidification, decolorization and deodorization. Next, we will introduce crude oil refining step by step to help you better understand how we ensure the high quality of oil products.

1. Degumming: Removing the gum from the oil

After crude oil is extracted from the oil field, it usually contains a large amount of natural colloids. These colloids not only affect the stability of oil, but also affect the process effect of crude oil refining and deep processing. Therefore, degumming is the first step in crude oil refining.

In this process, we decompose and remove the colloids in crude oil by heating and hydrolysis. Degumming not only helps to improve the stability of oil products, but also reduces the emulsification phenomenon that may occur in the subsequent refining process, ensuring that the oil products are clearer and more transparent.

2. Deacidification: Removal of free fatty acids

Crude oil usually contains a certain amount of free fatty acids. These acidic substances will increase the acid value of the oil, affect the taste and color of the oil, and may cause corrosion and other problems. Therefore, deacidification is an important step in the crude oil refining process.

In this step, we use alkali tablets to react with free acids to generate neutral compounds, thereby removing acidic substances from crude oil. Deacidification can not only improve the quality of oil products, but also improve the taste and edible safety of oil products.

Cooking oil degumming and deacidification machines

3. Decolorization: Removing pigments and impurities from oil

The appearance of oil products is crucial to consumers' choices, and crude oil often contains some natural pigments and impurities, which will affect the transparency and color of oil products. Therefore, the decolorization process is particularly important in the crude oil refining process.

We use adsorption methods, such as activated carbon and bentonite, to remove pigments and other tiny impurities from oil. This not only makes the oil products appear clearer and more transparent, but also enhances the market appeal of oil products and improves their reputation among consumers.

Cooking oil decolorization machines

4. Deodorization: Remove odor and retain natural flavor

The odor in oil products is an important factor affecting consumers' purchasing experience, and these odors usually come from the natural odor in crude oil or byproducts that may be produced during the refining process. In order to ensure that the oil products do not have any unpleasant odors, we need to deodorize them.

During the deodorization process, we use high-temperature steam or vacuum distillation to remove volatile organic compounds and odor substances in the oil products through physical means. After this treatment, the oil products are not only fresh and odorless, but also retain their natural fragrance and nutrients.

Cooking oil deodorization machines

Through the four crude oil refining steps of degumming, deacidification, decolorization and deodorization, Henan Glory company can ensure that each batch of oil meets high quality standards. We strictly control every link to remove impurities and undesirable ingredients in the oil, maximize the nutritional value and natural flavor of the oil, and provide consumers with healthier and higher-quality edible oil products.