How to extract vegetable oil

There are many kinds of seeds can produce the vegetable oil, such as : soybean, sunflowers, peanuts, cotton seed, palm kernels, canola, copra, castor and a variety of other materials.

vegetable oil seeds

There are four main sections to extract vegetable oil: vegetable oil pretreatment section, vegetable oil extraction section, vegetable oil refinery section and vegetable oil dewaxing section. The flow chart is as following:
Raw material (vegetable oil seed) → Cleaning →Conditioning → Puffing(extrusion machine) → solvent extraction plant → Refinery plant →dewaxing plant →high quality refined vegetable oil  
Here, I will introduce our company's new technology about how to extract vegetable oil from the vegetable oil seeds.

Craft flow for vegetable oil extraction workshop

  solvent                                                                    
     ↓                                                                      
extractor → mixed oil → 1st and 2nd evaporation  → stripping tower → crude soybean oil

         Wet meal → DTDC toaster → soybean cake

Main Equipments of vegetable oil solvent extraction:
1. Solvent pumps: continuously spray solvent to the rotary-typr extractor.
2. Roary extractor: spray and soak the soybean cake with solvent so that oil fats can be dissolved in solvent (form miscella). After processing, you can get wet meal and miscella (mixed oil).
3. DTDC: used to separate the solvent from the wet meal.
4. Miscella tank 1st: pump the miscella ( oil with solvent) into the miscella 1st, then add 10% saline water to it. The phospholipid and impurities in the miscella will react with the saline water, at last the reactant precipitate, reaching the goal of purifying.
5. Miscella tank 2nd: the purified miscella will be pumped into it.
6. Miscella stripping: it will remove the remaining solvent in miscella. And the solvent will be discharged to condenser for recycling.
7. Condensers: used to cooling the solvent gas separated from the wet meal and miscella for recycling.

Vegetable oil solvent extraction chart flow

We have been specialized in edible vegetable oil extraction plant since 1967. We can offer turnkey service of vegetable oil extraction plant and our professional engineers can help you design and install workshop according to your real conditions. If you want to know more about vegetable oil extraction plant, please feel free to contact us.