Batch type oil refinery plant

Oil refinery plant usually includes the following sections: Degumming,Neutralization, Bleaching, Dewaxing and Deodorization. The process of removing these impurities after oil extraction section is called oil refining. The crude oil obtained either from expellers or solvent extraction plant contains impurities, which must be removed to make the oil edible, more palatable and stable against rancidity upon storage.

Batch type oil refinery plant

Batch Type Oil Refinery Plant
A batch type oil refinery plant is the most widely used system to refine different oils.This type of refining process is generally used for smaller capacity plants ranging from 2 Tons per Day to 30 Tons per Day. The batch refining system is preferred because it is low cost and quite easy to operate. This makes the batch process economical, low capital oriented and more viable for use up to 30 TPD.

The batch oil refinery process consists of different sections such as neutralization, bleaching, deodorizing and winterization.
Different equipments such as neutralizer,bleacher,deodorizer,cooler, heat exchanger,vacuum equipments, plate and frame filters,pressure leaf filters, thermic fluid boiler,cooling tower,valves and pipelines etc are used with the batch process.

Batch type oil refinery plant

The basic process of edible oil refinery:

Neutralization Process

The crude oil is pumped to Neutralizer from oil mill or storage tank & first it is treated with weak solution of phosphoric acid or other suitable degumming agent for removing gums. Neutralizer is used remove the Free Fatty Acids (FFA) by adding caustic soda. Oil is heated up to about 60°C by heating coils and oil is stirred by the stirrer. The chemical reaction between free fatty acid and caustic soda forms the soap stock. This soap stock is allowed to settle down in the neutralizer from where it is collected into the soap pans. The oil is then washed with hot water to remove traces of soap particles and free alkali.

Bleaching Process
In the bleaching process, excess color from the oil is removed. Neutralized oil is heated in the bleacher vessel to remove excess moisture and thereafter it is treated with a measured quantity of bleaching earth and activated carbon. Nextly oil passes through a filter to separate bleach earth and bleached oil. Oil obtained after bleaching process is light in color and has good golden type appearance.

Deodorization | Deacidification Process
The deodorization process removes odor from the oil to improve the quality and self-life of the oil. The clean bleached oil is  heated in  the deodorizer to remove all the odiferous material such as phenols, ketones, tocopherols, aldehydes etc. The oil is heated in the deodorizer above 110°C through thermic fluid coils and then live steam is given to the oil from the bottom steam nozzles and temperature of oil is raised upto 200 to 220°C through thermic fluid coils. Entire process is done under high vacuum. Thus smell is removed from the oil in the deodorizer.
Cooling Process
The deodorized oil needs to be cooled at the atmospheric temperature to avoid oxidation. The deodorized oil is cooled in the cooler vessel. The water circulating coils take away the heat and the oil is cooled.
Once the process cycle is complete the oil obtained will be RBD oil which is light in color. After cooling it will pass through polishing filter to obtain sparkling light color & odorless oil for packing, which will be used as final edible oil for cooking.

Dewaxing Process
Dewaxing process is carried out for Sunflower and Rice Bran Oil as they contain waxes compared to other oil. This wax is removed by the dewaxing process. The oils are subjected to winterization process. The oil is first processed in the crystallizer where it is cooled by chilled water circulation. Low temperature results in the formation of crystals which are removed in the filtration process.

Thermic Fluid Boiler, Vacuum Pump, Barometric Condenser, Catchalls, Steam Generator etc. play their role in the refining process. So these equipments are part of the refinery and connected with the vessels through pipelines.

Winterisation is another name to the process of dewaxing. The name winterization appears as during winter when the temperature is low, waxes present in the oil crystallizes, they give hazy appearance to the oil.

Dewaxing machine in batch type oil refinery plant

Our company supply the complete set of cooking oil production line including sunflower oil production line, palm oil production line, soybean oil production line, peanut oil production line, cotton seeds oil production line, maize corn germ oil production line, clamelia oil production line,rapeseeds oil production line, canola oil production line, coconut cropra oil production line, shea oil production line, groundnuts oil line, sesame oil production line,black seeds oil production line, jatropha seeds oil production line,moringa seeds oil production line and other vegetables oil processing machines.

If you have any questions about the batch type oil refinery plant , please feel free to contact us and our engineer will give you a  professional advice.