In batch oil refinery process or cooking oil refinery process, a measured quantity of oils is processed in sequence of neutralizing, bleaching & deodorizing.
For plants capacity from 5 to 25 tons per day, batch process is recommended being low cost and easy to operate.
Crude oil obtained from expellers or solvent extraction plant contains foreign impurities such as mucilage, gums, coloured & unfiltered matter from the seed. Also Free Fatty Acids (F.F.A.) which tend to deteriorate the oil on storage, thus making it unfit for edible purpose. The batch refining process consists of following section :
First Stage of Refining is to Remove Free Fatty Acids(F.F.A.) wih caustic Soda Treatment called Neutralizing Process Thereafter further processed in the bleaching section under vacuum and treated with bleaching earth and activated carbon for removing colour .Finally it will be Deodorized under high vacuum and high temperature to remove the odour from the oil. The Edible obtained in a batch refinery is of good quality meeting all requirement of International Standard. However in case of Sunflower and rice bran oil, there is one more process of Dewaxing after bleaching Process.
The equipment involved are Neutralizer, Bleacher, Deodorizer, Heat Exchanger, High & low vacuum equipment & Filters. Shreeji plant with batch process have been operating at number of places, processing variety of vegetable oils.
Basic process of refining is same in both batch & continuous refinery. Only difference is instead of a measured batch, crude oil is processed continuously with constant stream of flow. In between required utilities & chemicals are added continuously in measured quantity. Crude oil from obtained from expellers, solvent extraction plant contains foreign impurities such as mucilage, gums and unfiltered proteinous matter from the seed. It also contains gums which making it unfit for edible
purpose. Basic stages of the process are as below:
A very simple requirement of this process is to produce Clear, Brilliant refined oil and to meet certain specifications of Cloud Point.
Sunflower and Rice Bran oil normally contain waxes compared to other oil. Therefore these oils are subjected to de-waxing process called Winterisation Plant, to remove waxes from oil and to produce sparkling good quality edible oils.
To remove the wax, the oil is first processed in Crystaliser where it is cooled by Chilled water circulation. Where the wax is converted into crystal form and there after this will be pass through the filteration process. Now, the wax is separated and the de-waxed oil is collected
Dayal Exports know-how gives you an arrangement; you have been looking for since long. Our Crystalliser is Geometrically Designed for Uniform Cooling and effective Nuclei growth of particle.
Dayal Export know-how provides a Low Operating Cost Fractionation Plant which gives high olien / soft stearin yields at established control i.e. PLC (automation) for efficient working and reliability of the plant.
The separation of Stearin and Olien is continuously done on Rotary Vacuum Drum Filter and its principle is simple, whereas Crystallization process involves a perfect technique to develop and grow the particles size for easy smooth separation of Stearin and Olien.
Hydrogenation which is also called Fat Modification is unique 3 phase process system: Solid (Nickel Catalyst), Liquid (Oil) and Gas (Hydrogen). Further a selective reaction, by bringing gas—hydrogen, liquid—oil to the solid—Ni Catalyst and this technological concept formalised an Engineering Design. SHREEJI offers Hydrogenation / Fat Modification Plant, which has several benefits
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