Product Description


crude soybean oil refinery equipment

1.The residual: 2.1st grade soybean oil

3.Patent technology

4.Good smell oil

Crude Soybean Oil Refinery Equipment

The whole crude soybean oil refinery equipment contains three workshops: soybean pretreatment workshop, soybean oil extraction workshop and soybean oil refining workshop.

1. Craft flow for soybean pretreatment workshop

soybean→magnetic box→cleaning→softening→flaking→cooker to extraction workshop

Main Equipments of soybean pretreatment workshop:

1).Soybean: The oil content in the soybean is about 20-45%.

2). Magnetic box: Clearing the iron impurity which might be in the soybean. Since in the process of puffing, the iron impurity will be harmful to the screw of extrusion machine.

3). Cleaning: Removing the stone or solid impurities in the soybean, in case of they will influence the oil yield rate and desolventizing of wet meal in the next process.

4). Softening: It is used to adjust the water in the soybean and it change the state of the cell in the soybean.

5). Flaking roller: The soybean kernel is made to small piece. This can improve the oil yield rate of the soybean.

6). Cooker: The machine is used to adjust the water content in the soybean flaker.

2.Craft flow for soybean oil solvent extraction workshop

solvent → extractor→mixed oil→1st and 2nd evaporation →stripping tower→crude soybean oil → Wet meal→DTDC toaster→soybean cake

Main Equipments of soybean oil solvent extraction workshop:

1). Solvent pumps: continuously spray solvent to the rotary-typr extractor.

2). Roary extractor: spray and soak the pre-pressed 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 toaster: 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.

3. Craft flow for soybean oil refining workshop

Crude soybean oil→degumming and deacidification→decolorization refined soybean oil.

Main Process of soybean oil refining workshop:

1). Degumming and deacidification: The gumming is moved by phosphoric acid and hot water. There are two ways to move the acid in the soybeanoil. One is chemical way, the other one is physical way. The chemical way is using NaOH to react with acid. This way is suitable for the capacity of 5-30T per day. The physical way is using steam and centrifugal to move the acid. This way is used for capacity from 30-2000T per day.

2). Decolorization: This step is used to adjust the color of the oil. You can control the color of the soybean according to the requirement of your market.

3). Deodorization: The function of this step is to move the special smell in the oil. This is an important standard for refined oil.

the specification of crude soybean oil



Smell and taste

The original smell and taste of soybean oil

Moisture and volatile matter (%)


Insoluble impurities (%)


Acid value (mgKOH/g)


Peroxide value (mmol/kg)


the specification of refined soybean oil



Color (Lovibond Cell 133.4mm)

R3.5 Y35

Smell and taste

No smell and good taste


Clear and transparent

Moisture and volatile matter (%)


Insoluble impurities (%)


Acid value (mgKOH/g)


Peroxide value (mmol/kg)


Smoke point (°C)


WorkGroup believe that whatever the field is, quality has always been at the heart of the company’s performance. We treat quality and service as a way of life and hope to serve you in the possible manner on a long term and mutually beneficial basis. If you want to know more information about our sunflower oil plant or any other seed processing plant, please contact us in the following form. Our responsible, experienced sunflower oil processing technical team is always ready to serve and guide you at any time.

All the other oil seeds pre-treatment and oil refining equipment, sheller, cleaning sieve, cooker, filter and others is available at WorkGroup. If you want to know to start a vegetable oil pressing line with oil press machine, please contact us, we will offer you the best plan.

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