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Castor sunflower rape seed coconut cotton oil refinery machine
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- Leader Machinery2020-07-10 09:46:19
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Product Description
Castor sunflower rape seed coconut cotton oil refinery machine
The main component of crude oil is a mixture of glycerol tri-fatty acid esters (commonly known as neutral oil). In addition to neutral oil, the crude oil also contains non-glyceride substances (collectively referred to as impurities), its type, nature, state, can be divided into mechanical impurities, fat-soluble impurities and water-soluble impurities in three categories.
Degumming: The process of removing peptizing impurities in crude oil is called degumming. Due to the insoluble impurities in the crude oil is mainly phospholipids, so the industry often called degumming dephosphorization. In the alkali refining before the first addition to soluble impurities, can reduce the loss of neutral oil, improve the quality of alkali refining, can save the amount of alkali, and access to valuable by-products - phospholipids.
Hydration degumming is the use of phospholipids and other hydrophilic impurities in the glue, a certain amount of water or electrolyte dilute solution added to the crude oil under stirring, so that the oil-soluble impurities in water swelling, condensation and separation of a removal Degumming method.
InfCastor sunflower rape seed coconut cotton oil refinery machinece Factors of hydration degumming:
1. Operating temperature
2. Water addition
3. Mixing strength and action time
4. Electrolyte
5.Quality of feedstock oil
Acid refining and degumming: production practice shows that without the removal of phospholipid metal complexes, alkali refining will not only produce the general colloidal emulsification, and the formation of calcium and magnesium and other metal soap washing is not easy to remove. Phosphoric acid treatment and then alkali refining, alkali refining and phospholipids containing soap was significantly reduced.
Dry degumming: This method is suitable for processing with low-colloidal fat.
Physical refining requirements of the oil in the gel content is very low, as little as possible trace metals and heat-sensitive pigments, so often combined with acid treatment and decolorization.
Degumming: The process of removing peptizing impurities in crude oil is called degumming. Due to the insoluble impurities in the crude oil is mainly phospholipids, so the industry often called degumming dephosphorization. In the alkali refining before the first addition to soluble impurities, can reduce the loss of neutral oil, improve the quality of alkali refining, can save the amount of alkali, and access to valuable by-products - phospholipids.
Hydration degumming is the use of phospholipids and other hydrophilic impurities in the glue, a certain amount of water or electrolyte dilute solution added to the crude oil under stirring, so that the oil-soluble impurities in water swelling, condensation and separation of a removal Degumming method.
The infCastor sunflower rape seed coconut cotton oil refinery machinece of hydration degumming because:
1. Operating temperature
2. Water addition
3. Mixing strength and action time
4. Electrolyte
5. Quality of feedstock oil
Acid refining and degumming: production practice shows that without the removal of phospholipid metal complexes, alkali refining will not only produce the general colloidal emulsification, and the formation of calcium and magnesium and other metal soap washing is not easy to remove. Phosphoric acid treatment and then alkali refining, alkali refining and phospholipids containing soap was significantly reduced.
Dry degumming: This method is suitable for processing with low-colloidal fat.
Physical refining requirements of the oil in the gel content is very low, as little as possible trace metals and heat-sensitive pigments, so often combined with acid treatment and decolorization.
Deacidification: Uncooked in a variety of crude oil, contain a certain amount of free fatty acids, free fatty acids in the process of removing oil called deacidification. Deacidification methods include alkali refining, distillation, solvent extraction and esterification and other methods. The most widely used in industrial production is the alkali refining and steam distillation (physical refining method).
Alkali deacidification method is the use of alkali and grease in the free fatty acids, the resulting saponins adsorption part of the other magazines and remove the oil from the refining method. Soap has a good adsorption, it can adsorb pigments, proteins, phospholipids, mucus and other impurities, and even suspension of solid impurities can also be flocculent soap entrainment, together from the oil separation, the sediment oil plant soap feet.
Factors affecting deodorization:
1. Deodorization temperature
2. Operating pressure
3. Steam velocity and time
4. To be deodorized oil and refined oil quality
5. Direct steam quality
6. Structure of deodorizing equipment
Oil deodorization is divided into intermittent, semi-continuous, continuous and filler film and other processes.
1. Intermittent deodorization suitable for small production, processing and more varieties of oil factory.
2. Semi-continuous deodorization process is mainly used in the refining of oil varieties for frequent replacement of the factory. Compared to the advantages of intermittent deodorization is mainly a short time to replace the feedstock, the system less residual oil.
3. The continuous deodorization process is suitable for processing plants that do not frequently change grease varieties.
Grease dewaxing is a process in which the high-melting point wax and the high-melting-point solid fat are separated from the oil by cooling and crystallizing, and then removed by filtration or centrifugal separation.
Often referred to as oil dewaxing actually contains two aspects of significance: one is to include rice bran oil, sunflower oil, corn oil, safflower oil, wheat germ oil and other wax containing high melting point. The second is to grease the storage of all the solid components in the turbidity removal, in these solid components, both the composition of the wax, there are oil polymers, saturated triglycerides and other ingredients.
In the solid-liquid separation, like the wintering of cottonseed oil is about room temperature to separate the solid fat precipitation, and from the palm oil will be different from the melting point of oil and grease to distinguish, it is about 0 ℃ palm palm oil and palm oleic acid Of the high melting point component crystallization to distinguish, therefore, for the removal of saturated glycerol ester process should be called the sub-mention more precise, winter can also be referred to as the natural sub-mention.
Wax content of different vegetable oils:
Oil |
Wax/% |
Unsaponifiable matter /% |
Rice bran oil |
3-9 |
3-5.0 |
Corn oil |
0.05 |
0.8-2.9 |
Sunflower oil |
0.01-0.35 |
0.3-1.2 |
Safflower oil trace |
trace | 0.3-1.2 |
Rapeseed oil |
0.0016 |
0.3-1.2 |
Wheat germ |
- |
2-6 |
Soybean oil |
- |
0.2-0.5 |
Fractionation method is divided into two steps of crystallization and separation, the first cooling oil precipitation crystal, and then the crystal - liquid separation to be solid and liquid oil. Fractionation is the process of lipid modification, which involves changes in the composition of the oil.
Palm oil is an important sub-raw material. Both palm oil and refined palm oil can be used for fractionation. The main purpose is to obtain low freezing point and high freezing stability of the oil. Single-stage production of liquid oil production of freezing point (cloud point) below 10 ℃, the melting point of stearin is 44-52 ℃. Liquid palm oil is used as a surrogate for cooking soft and salad oils, while stearin is used in frying oil, margarine and shortening.
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