1TPD to 20TPD Batch-type Edible Oil Refining Equipment Overview

Batch-type edible oil refining equipment is ideal for small-scale operations, offering flexibility, efficiency, and high-quality output. Our Batch-Type Edible Oil Refining plants are designed for capacities ranging from 1 ton per day (TPD) to 20 TPD, making them suitable for small producers and pilot operations. This edible oil refinery plant includes the crude oil degumming, neutralizing, bleaching, and deodorizing process. With its cost-effective design and ease of use, this edible oil refining equipment offers a practical way to refine almost all the common edible oils into high-quality edible oils, such as peanut oil, soybean oil, rapeseed oil, cottonseed oil, etc.  Customized capacity and excellent after-sales service.

1-5 ton per day edible oil refinery machinery unit

Batch-type Edible Oil Refining Equipment Features

  1. Scalability: Suitable for small-scale edible oil production lines and can be scaled up as production demands increase.
  2. Flexibility: Can refine various types of crude oils, including palm oil, soybean oil, sunflower oil, peanut oil, and more. Batch-type Oil Refining, providing flexibility in production scheduling.
  3. Cost-Effective: Lower initial investment compared to large-scale continuous plants. Low operating and maintenance costs.
  4. High-Quality Output: Produces high-quality refined oil with effective impurity removal processes.
  5. Ease of Operation: User-friendly controls and interfaces. Simple maintenance and cleaning procedures.
  6. Customized capacity: We customize the edible oil refining plants as per your requirement for the capacity.
Flaxseed Refining Plant

Flaxseed Refining Plant

The Small Edible Oil Refining Process And Equipment

Walnut Oil Refining Plant

Refining is conducted in a series of steps such as degumming (to remove gums), neutralizing (to remove FFA), bleaching (to remove color), and deodorizing (to remove odor and taste). Every process should be strictly controlled to do well to the next steps. The below equipment is just a sample of a small edible oil refining plant.

  • Refining Tank: used for degumming and neutralizing (3 sets)
  • Bleaching Tank: dry the oil after washing and remove the pigments from the neutralized oil. (1 set)
  • Stainless Steel Deodorizer: remove the odor substances from decolorized oil (1 set)
  • Other Auxiliary Equipment: air compressor, filters, pumps, etc.


1. Degumming

degumming section of vegetable oil refinery process

This process adopts a hydration method to remove gums in the crude oil. Filtered oil is pumped into the refining tank, with fast stirring, the temperatures rise, and then hot water is added. Phosphatides absorb water and dilate, meanwhile, absorbing other impurities, finally, they deposit and get separated. The oil is then pumped into the bleaching tank for vacuum dehydration and cooled. The hydrated oil feet can be dried for lecithin, which is used for food additives and feed additives.

2. Bleaching

decolorizing section of cooking oil refinery line

Degummed and neutralized oil are pumped into the bleaching tank, dried, and mixed with bleaching earth, which adsorbs pigments, as well as peroxide, trace metals, phosphatides, soaps, PAHs, and residual pesticides. The mixture is then dried and pumped into the oil filter to remove clay.

3. Neutralizing

Degummed oil is mixed with the caustic solution (NaOH) to react with free fatty acids and form soapstocks, which settle down and get removed by pumping into the soapstock tank. Part of other impurities is also removed by adsorption on soapstocks. Then the oil is heated and washed with hot water 2-3 times till the wastewater is clean, then pumped into the bleaching tank for vacuum dehydration and cooled. The byproduct soapstock can be sold to producers of soaps, biodiesel, livestock feed, or fatty acids.

deacidification and deodorizing

4. Deodorizing

The oil, with gums, pigments, and trace metals well removed, is subjected to steam distillation under high temperature and high vacuum to evaporate all odor substances (mainly FFA). Then the oil is cooled and filtered by a bag filter to remove metallo-chelate. The volatile gas is cooled to separate the fatty acids in it, which are then stored in the fatty acid tank for recycling. In the process, peroxide and its decomposition product and other impurities are also removed.