Physical Oil Refinery of Extracted Peanut Oil

There are both physical and chemical oil refining technology, which are applicable for crude oil from pre-pressed peanut cakes. Commonly, chemical oil refinery process can get first grade peanut oil, which is also called peanut salad oil. This chemical peanut oil refinery process has a lot of advantages, but also exists some disadvantages such as auxiliary material consumption, part of neutral oil inevitable phenomenon such as saponfication. It also produces large amount of the water waste and finally cause environmental pollution.

peanut oil press section

Physical oil refining process is a bit different from chemical peanut oil refining. This kind of peanut oil refining technology has advanced features of simple process flow. During peanut oil refine process, there is no neutral oil by saponification and emulsifying phenomenon, thus refining yield high, high quality of refined oil, at the same time there is no waste water pollution problems.
In view of the advantages of physical peanut oil refining process, the company in the original chemical refining leaching peanut oil, based on experiment of leaching peanut oil physical refining. Results of refined oil products are in accord with GB1534-2003 standard for first grade oil leaching of peanuts.
Acid refining and degumming: physical peanut oil refining requires degumming must be thoroughly, because the remaining oil in the phospholipids in the high temperature can decompose, affect the color of the oil, and will cause a peculiar smell. During the process of acid refining degumming in peanut oil refining, users should be cautious with these details below: maintain the stability for phosphoric acid, phosphate in general traffic on small-scale changes on the enzymatic degumming process impact is not big, but the amount of phosphate may not, shall not be less than 1 ‰. Add water is moderate in multi-effect mixer of hot water and hot water before the centrifugal mixer is associated, in 7 ﹪ - 8 total ﹪ (oil). Adding more water, less water added behind the corresponding, and vice versa.
Decolorization: physical refining bleaching clay content is chemical refining clay content, general according to the requirement of oil quality and product added proportion, the range between 1 ﹪ - 2.5 ﹪ (oil). Decolonization condition such as temperature, bleaching time and vacuum degree are the same.
Refining process of acid, free fatty acid and low molecular weight substances under the condition of high temperature and high vacuum and direct steam distilled out.
Adopting physical peanut oil press process, made the peanut oil level indicators all meet the national standards, at the same time to avoid the loss of neutral oil and raw materials consumption, reduce the production costs for the enterprise. Reduced emissions of pollutants such as wastewater and protect the environment.