Peanut Oil Production Line

Peanut oil production line includes three sections from peanut seeds pretreament to refining the crude peanut oil. They are peanut pretreatment plant, peanut cake solvent extraction plant and peanut oil refinery plant. We can provide a customized solution that caters to the specific needs of its clients. With a commitment to quality and customer satisfaction, QIE Group supplies the peanut oil production line with the input capacity from 30tons/day to 1000tons/day.

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Brand
QIE

Raw Material
Peanut

Capacity
30-1000TPD

Concrete Designs of Peanut Oil Production Line Process

Peanut pretreatment process

Pretreatment section is to remove the impurities in the peanut kernels and change its structural characteristics, in order to make it suit the requirements of the peanut oil extraction process.

Cleaning

Cleaning machines includes magnetic separator, cleaning seive, winnowing machine, etc. They can remove mechanical impurities such as solid, iron impurities, sick seeds, etc. Cleaning section prevents the following equipment from damage, and increases oil yield. So cleaning is an essential part in peanut oil extraction plant.

Crushing

Broken peanut kernels are crushed into small pieces. The peanut crushing machine adopts toothed cracking rolls. When the toothed cracking roll works, the upper layer roller chute can crush the peanut kernel into 3-4 pieces, and the lower layer roller can crush the kernels into 2 pieces.

Flaking

Flaking damages oil cells, increases oil surface, and shortens the oil outflowing distance, which benefits oil extraction and impoves cooking efficiency.

Cooking

This process can improve prepressing oil yield rate and meal quality, and also adjust the moisture, temperature and plasticity of the flake.

Peanut Oil Pressing Process

In peanut oil production, the extraction of peanut oil typically involves both mechanical pressing and solvent extraction to maximize yield.The mechanical oil pressing method uses the power which is generated from the gradual reduction of the volume between the squeezed screw and the pressing chamber, as well as the power generated by the friction between the material and the peanut oil press machine to extrude the oil inside the pretreated peanut flakes.The pressed groundnut meal cakes can be used as animal feed, or the residual oil can be further extracted through the extraction process.

Screw Oil Press Machine

Automatic Integrated Oil Press Machine

ZX32 Screw Oil Press Machine

ZY338 Screw Oil Press Machine

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peanut oil solvent extraction process

The solvent extraction of peanut oil is a process of extracting peanut oil with n-hexane as extraction solvent. The process consists of four systems: solvent extraction system, wet meal desolventizing system, mixed oil evaporation system, and solvent condensation recovery system.

Peanut oil solvent extraction system

The mixed oil and wet meal were obtained by desolventizing peanut oil in peanut meal with n-hexane organic solvent in the leaching system.

Wet meal desolventizing system

This system use desolventizing toasting drying and cooling tower (D.T.D.C) to desolventizing, toasting, dry and cool the mixed oil in the evaporated wet meal, and the dry meal can be used as animal feed.

Mixed oil evaporation system

The system has three main equipment: the first long tube evaporator, the second long tube evaporator and the stripper. After being treated, the solvent in the mixed oil is evaporated and enters the solvent condensation recovery system.The peanut oil will be fed into the peanut oil refining plant.

Solvent condensation recovery system

The solvent evaporated by the mixed oil evaporation system passes through the condenser, and then is stored for recycling in the next production.At this point we have the peanut extract oil and finish the whole treatment.

Peanut Oil Refining Process

The peanut oil refining process effectively removes the impurities and harmful substances in the oil. Improves the quality and stability of the oil through the treatment of degumming, deacidification, decolorization, deodorization, and other steps.

Degumming

We usually use the acid refining method. The acid refining method is to add acid (such as phosphoric acid or citric acid) to make phospholipids and other impurities react and form precipitates, and then separate the precipitates by centrifuge.

Deacidification

The main method used is food-grade lye neutralization. Add an appropriate amount of lye (such as sodium hydroxide solution) to peanut oil, so that the free fatty acids and alkali neutralization reaction occurs, resulting in soap foot (i.e., the main component of soap). Subsequently, the soap feet are separated by centrifugation, thus obtaining peanut oil after deacidification. This step not only effectively reduces the acidity of peanut oil, but also improves the stability and quality of the oil.

Decolorization

Add an appropriate amount of adsorbent, such as white clay, aluminum silicate, or activated carbon, to the deacidified peanut oil. These adsorbents can effectively adsorb the pigments and trace metal ions in the oil. The adsorbent and its adsorbed impurities are removed from the oil through filtration equipment, to get the decolorized oil with clear color and high purity.

Deodorization

The decolorized oil is heated and distilled under high temperature and high vacuum. During this process, odorants and volatiles evaporate with the steam and are discharged out of the system. After deodorization, peanut oil not only has a pure aroma but also has a much higher stability and is more conducive to storage and transportation.

QIE Grain and Oil Machinery Co., Ltd

Global Case Study

With decades of expertise,QIE Group has successfully installed cooking oil production lines worldwide, serving customers in over 100 countries. Our extensive product portfolio includes cooking oil production solutions, as well as customized solutions for specific capacities ranging from small-scale operations to large conglomerate production facilities.

Whether in Asia, Europe, the Americas or Africa, our equipment is tailored to meet local market needs and production challenges. We operate worldwide and customer satisfaction is at the heart of every project we undertake. From initial consultation and design to installation and after-sales service, QIE Group ensures that every solution meets the highest standards of quality and efficiency.

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