Indonesia 5TPD palm oil refining project successfully put into production
1. Process Flow Introduction
There are certain NonTriglyceride factors exsit in the crude oil, such as free fatty acid, water, suspended impurities, volatile matter, odors and etc. The oil refinery adopts the advanced technology to separate the impurities from oil, and then get the edible oil. The main function of this type oil refinery is to produce the high quality refined oil.
2.The main steps of crude oil refinery :
1）. degumming - use the hydration method.
2）. deacification - use the Alkali refining method.
3）. decolorization - use the white clay to absorb the colouring materials.
4）. deodorizing - Use high temperature under high vacuum to remove the odor material.
3. Degumming and Neutralizing
The purpose of degumming is to remove impurities such as phospholipids, gums and proteins etc. There are several methods as follows: water degumming, acid degumming, special degumming etc.
The purpose of neutralizing is to remove free fatty acid in oil by using caustic soda while removing impurities such as phospholipid, pigments, metal ions, peroxide etc. by use of soapstock.
4. Bleaching
Bleaching is the process operation which removes colouring matters by mixing bleaching earth with oil under controlled conditions of temperature. After proper mixing with bleaching earth for a specific residence time, the mixture is finally pumped into leaf filters with stainless steel mesh elements followed by polishing filtration.
5. Deodorizing
Deodorizing is the final stage in oil refining in order to remove odoriferous material, free fatty acids and other undesired minor components by steam distillation under condition of high temperature （240°C-260°C）and vacuum (755mmHg)to produce a bland oil with a good shelf life.After this section,the acid value could be as low as 0.3mg/g
There are certain NonTriglyceride factors exsit in the crude oil, such as free fatty acid, water, suspended impurities, volatile matter, odors and etc. The oil refinery adopts the advanced technology to separate the impurities from oil, and then get the edible oil. The main function of this type oil refinery is to produce the high quality refined oil.
2.The main steps of crude oil refinery :
1）. degumming - use the hydration method.
2）. deacification - use the Alkali refining method.
3）. decolorization - use the white clay to absorb the colouring materials.
4）. deodorizing - Use high temperature under high vacuum to remove the odor material.
3. Degumming and Neutralizing
The purpose of degumming is to remove impurities such as phospholipids, gums and proteins etc. There are several methods as follows: water degumming, acid degumming, special degumming etc.
The purpose of neutralizing is to remove free fatty acid in oil by using caustic soda while removing impurities such as phospholipid, pigments, metal ions, peroxide etc. by use of soapstock.
4. Bleaching
Bleaching is the process operation which removes colouring matters by mixing bleaching earth with oil under controlled conditions of temperature. After proper mixing with bleaching earth for a specific residence time, the mixture is finally pumped into leaf filters with stainless steel mesh elements followed by polishing filtration.
5. Deodorizing
Deodorizing is the final stage in oil refining in order to remove odoriferous material, free fatty acids and other undesired minor components by steam distillation under condition of high temperature （240°C-260°C）and vacuum (755mmHg)to produce a bland oil with a good shelf life.After this section,the acid value could be as low as 0.3mg/g
