How to make soybean oil from soybean seeds? How many types of extraction method can be used in soybean oil processing process?

In general, there are two methods for extracting soybean oil: one is mechanical extraction method, also called traditional soybean oil extraction method; the other is solvent extraction method, also known as chemical extraction method. Both mechanical extraction method and solvent extraction method all can achieve the goal of effective extraction of soybean oil.

Soybean oil extraction machine

The difference between mechanical way of soybean oil extraction and chemical way of soybean oil extraction is that: the mechanical extraction method is simple in operation, small in area, but the residual oil rate is high, and the residual oil rate is about 7% to 8%. Soybean oil solvent extraction methods are relatively complex, but the residual oil rate is low , the residual oil rate is less than 1%. You can choose one depending on your capacity and your fuel needs, or you can use two together.

Mechanical extraction method:
The mechanical extraction method refers to a machine that extrudes soybean oil from soybean by increasing the temperature and activating the oil molecules by means of the action of mechanical external force. The mechanical extraction method is suitable for family workshop or small soybean oil mill (1-30 tons). The most commonly used soybean oil press machine are: single screw soybean oil press machine, intergrated soybean oil press machine with filter.

Single screw soybean oil press machine

Integrated soybean oil press machine with filter

Solvent extraction method:
Soybean oil solvent extraction, also known as "extraction", is a process in which oil is extracted from an oil with an organic solvent. Soybean oil solvent extraction method is suitable for large edible oil processing plants (over 30 tons). Soybean oil solvent extraction plant is as follows:

Soybean oil solvent extraction plant

Soybean oil extraction method has been introduce. If you have any questions about the soybean oil extraction process, please call +86 13526627860, the engineer of Henan Doing Company will reply you as soon as possible.


Contact information: 
http://www.edibleoilextractionmachine.com 
whatsapp/wechat/mobile: +86 13526627860
Email: oilmachine@doinggroup.com

1-1000ton/day soybean oil making machine( from pressing to refining machine)

Complete set soybean oil making machine introduction:

Cooking oil manufacturing machine is used to process seeds to high quality cooking oil. But about extracting crude oil , we have two methods to process seeds to oil, one is mechanical press method , the other is solvent extraction method.

Cooking oil manufacturing machine with prepress line. 

Cooking oil manufacturing machine with solvent extraction line.

Cooking oil manufacturing machine with refinery line.

About the details , welcome to contact us.

Basic information about complete set soybean oil making machine:

1.Pretreatment and prepress step of soybean oil making machine.

Brief processes:

Raw material--Magnitic seperating--Metal impurities--Cleaning--Other impurities--Husking--Sunflower seed hull--Cooking--Prepressing--Crude oil--Sunflower seed cake--Extracting Workshop

soybean oil pretreatment and pressing process

Functions of main parts:

Magnitic seperating:In order to remove the metal impurities, so that can prevent damaging the equipment and occuring safety accidents.

Cleaning: To remove the imourities in the raw matrial such as soil, stem and leaf, hull and moldy seeds.

Husking: In order to improve the oil yielding rate and the quality of crude oil and meal, reduce the wear to the equipment, the hull must be removed.

Cooking: This processing can improve prepressing oil yielding rate and the quality of the cake, adjust the moisture, temperature and plasticity of the flake.

Prepressing:To squeeze out part of the oil in the raw material, and improve extracting effect.

Related post: Soybean oil pretreatment & prepressing machine

Pictures of prepress machines:

2.Solvent Extracting step of soybean oil making machine:

Brief processes:

Fresh Solvent--Cake--Extracting--Wet Meal--Desolventising--Meal--Miscella--Evaporating and stripping--Solvent mixture--Condensing and Recovering--Crude Oil--Solvent Recycling--Refining Workshop.

soybean oil solvent extraction process

Functions of main parts:

Extracting:To extract the oil in the cake by solvent, the general solvent is 6# extraction solvent oil or commercial hexane.

Desolventising:To remove and recover the solvent in the meal; Dry and cool down the meal at the same time.

Evaporating and stripping:Heating the the miscella by indirect steam, so that can vaporize the solvent and concentrate the miscella.

Solvent recycling: This process is to recover the solvent, decrease solvent comsuption, keep safety prodution and improve product quality.

 Related post: Soybean oil solvent extraction plant

Picture of solvent extraction machines:

3.oil refining step of sunflower oil making machine.

Brief processes:

Crude Oil--Hot water--Degumming--Oil Foot--Alkali liquor--Deacidfying--Soap Stock--

Activeted Clay--Decoloring --Waste Clay--Deodorizing--Dewaxing--Wax--Refined Oil

Soybean oil refining process flowchart

Functions of main parts:

Degumming:To remove the colloid soluble impurities, and prepare for the subsequent refining process.

Deacidfying:To remove the free fatty acid in the crude oil.

Decoloring: To remove the pigment in the crude oil by adding active clay, so that can improve the oil quality.

Deodorizing:To remove the odor in the oil, so that can improve the flavor, stability, color and quality of the oil.

Dewaxing: To renmove the wax in the oil and improve the quality of the oil.

Related post: Soybean oil refinery plant

Pictures of sunflower oil refining machine:

soybean oil refining machine

Refined sunflower oil quality:

Sunflower Oil Quality Index               (The index of soybean oil, rapeseeds oil, oiltea seed oil are similarly)
Item		Quality index
		Crude oil	1st grade	2nd grade
Colour and lustre(25.4mm)		_	Y15  R1.5	Y25  R4.0
Flavor and taste		Crude sunflower oil smell, no peculiar flavour	The original sunflower flavor, no peculiar flavour	The original sunflower flavor, no peculiar flavour
Transparency		_	Clear and transparent	Clear and transparent
Moisture &  Volatile matter / %     ≤		0.2	0.1	0.15
Impurities/% ≤		0.2	0.05	0.05
Acid value (KOH)/(mg/g)≤		4	1	2.5
Peroxide value/ (mmol/kg)    ≤		7.5	6	7.5
Solvent residue /(mg/kg)    ≤		100	Not be detected	Not be detected
Test tempeature (280 °C)		_	No educt, Lovibond Tintometer:Yellow value not changed,red value increasing<0.4	Trace of educt, Lovibond Tintometer: Yellow value not changed,red value increasing<0.4 blue value<0.5

Contact information:
http://www.edibleoilextractionmachine.com 
whatsapp/wechat: +86 13526627860
Email:oilmachine@doinggroup.com
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