The one of main products of Huatai Oil Machinery are edible oil refining equipment. Oil refinery plant is the last step in cooking oil production line. The purpose of cooking oil refinery plant is to remove harmful impurities and useless substances from crude oil, thereby improving the storage stability of cooking oil and making the oil's smell and color comply with national standards. We can provide edible oil refining machine according to customer needs. The main processing capacity is 1-600TPD; there are small edible oil refining machine of 1-5TPD, medium-sized vegetable oil refinery of 5-50TPD, and large cooking oil refining plant equipment of 50-600TPD.
Our refining equipment is suitable for refining various crude animal and vegetable oils; such as palm oil refining, rice bran oil refining, peanut oil refining, soybean oil refining, sunflower oil refining and other oil refining equipment. Generally speaking, edible oil refining process mainly includes three parts: deacidification section, bleaching section and deodorization section; but for some oils, dewaxing and fractionation are required to reach the first-class edible oil standard, for example, rice bran oil, sunflower oil; cottonseed oil need dewaxing and dephenolization; and palm oil needs fractionation equipment to obtain better quality edible grade palm oil.
Vegetable oil refinery is used to remove harmful substances in crude oil, which can reasonably speed up the quality of edible oil. At the same time, it can be used to refine various vegetable oils; the loss of oil varies with the oil products, and the damage is also different; The specific oil refining process should be designed according to the characteristics of the crude oil.
Main components in crude oil:
1) Triglyceride fatty acid ester (neutral oil) --- refined oil
2) Colloidal impurities (phospholipids)---degumming
3) Fat-soluble impurities (free fatty acids FFA) --- deacidification
4) Mechanical impurities (insoluble solid impurities) --- filtration
5) Wax: Wax fat composed of higher fatty acids and higher fatty alcohols, which reduces the transparency of the oil and has a poor taste (crude sunflower seed oil, crude rice bran oil, crude corn germ oil, etc.)
1. Degumming Stage: a. Hydration degumming (using the hydrophilicity of phospholipids) ---α phospholipids b. Acidification degumming (phosphoric acid, non-hydrated phospholipid) ---β phospholipid | Hydration degumming is a very important step. The amount and temperature of water added with superphosphoric acid and the speed of adding water are very important. The colloid is precipitated by the principle that the colloid will become flocculent when it meets water; |
2. Deacidification Stage: a. Alkali refining deacidification (caustic soda, chemical refining) --- By-product: soap stock b. Deacidification by distillation (steam, physical refining) --- by-product: fatty acids | Sodium hydroxide (NaOH) is used to neutralize the free fatty acids in the oil. In this process, some soap stock will be produced and separated from the oil; lye is not only used to neutralize free fatty acids, it can also neutralize excess phosphoric acid; in intermittent and semi-continuous refining processes, we use precipitation to separate soap stock; but in the fully continuous refining process, we use a centrifuge to separate soap stock, and the centrifuge is highly efficient. |
3. Decolorization Stage: Adsorption decolorization (white clay, activated carbon and other adsorption materials) | Because crude oil contains pigments, the color of the oil will be darker; in order to improve the color of the oil and obtain high-quality edible oil, we need to use activated clay and other media to absorb the pigments, and then use a vibration filter to separate the waste clay; |
4. Deodorization Stage and Dehydration Stage: Distillation method, vacuum stripping principle (physical refining-deacidification/deodorization at the same time) | The smell of crude oil is not very good, which will affect the storage and selling price of the oil, so we usually use direct steam to remove the smell of crude oil; at the same time, the oil also contains 0.5% of water, and the high temperature in the deodorization tower will remove the water. |
5. Filtration Stage: | After obtaining the deodorized oil, we will use a stainless steel precision filter (stabilization filter) to filter again to ensure the quality of the oil. |
6. Dewaxing Stage: Cooling, crystallization, filtration | Sunflower oil, corn germ oil and rice bran oil, etc. contain wax. If you want to get first-grade edible oil, dewaxing is necessary; this stage is optional according to customer requirements; |
Oil refinery plant: Oil refining pot, decolorization pot/tower, deodorization pot/tower
Continuity of each oil refining process: degumming, deacidification, decolorization, deodorization
1. Intermittent refining: Each process is not continuous; suitable for small scale and needs to process different cooking oil
2. Continuous refining: Each process is carried out continuously; suitable for large scale and high production efficiency
3. Semi-continuous refining: Degumming and deacidification in batches, decolorization or deodorization continuously
Huatai Oil Machinery provides 1-600TPD capacity vegetable oil refinery plant and provides professional oil refining solutions for different crude oil. Our engineering experience includes palm oil, soybean oil, sunflower seed oil, peanut oil, rapeseed oil, corn germ oil, cottonseed oil, linseed oil, rice bran oil, etc.
Crystallizing tank offers suitable crystallization condition for waxiness or solid oil for cooking oil refining plant. It is one of crude oil refining process.
Deodorization tower is commonly used machine in vegetable oil refinery plant. Huatai can make a design for cooking oil deodorizing according to your condition.
Deacidification tower of cooking oil refinery plant removes free fatty acids(FFA) from pressed or extracted crude oil to reduce acidity.
Bleaching Tower makes use of decolorizer to improve oil color, remove pigment and avoid its color reversion in cooking oil refinery plant.
Oil drying machine plays an important part in cooking oil production line. It can improve the efficiency of edible oil processing.
As cooking oil refinery machine, deodorization pot can improve oil quality greatly and effectively, and is suitable for various crude oil refining process.
Decolorizing pot is equipment to improve oil color, remove pigment and avoid its color reversion by decolorizer in cooking oil refining plant.
Vegetable oil refining machine is most popular product in Huatai, it can help to get grade1 edible oil, and cooking oil refinery plant suit for various crude oi...
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