Palm oil extraction process
Palm oil is an edible vegetable oil derived from the mesocarp (reddish pulp) of the fruit of the oil palms. The oil is used in food manufacturing, in beauty products, and as biofuel. Palm oil accounted for about 36% of global oils produced from oil crops in Demand has also increased for other uses, such as cosmetics and biofuels, creating more demand on the supply encouraging the growth of palm oil plantations in tropical countries.
Modern palm oil production technology includes the following stages:
Getting fresh oil palm fruits
Fresh fruits are harvested on the plantation and transferred to the plant for further processing within 24 hours. At the initial stage, the fruits are weighed and unloaded into receiving containers.
Sterilization
The resulting bunches of oil palm are sent for sterilization to remove litter and insects. Sterilization is carried out, as a rule, with superheated steam. Superheated steam treatment further improves oil extraction. The sterilized bunches of oil palm are sent to the threshing machine.
Threshing
In the process of threshing, fresh fruits are separated from the bunch, which later go to the next stage — digestion.
Digestion
In the process of digestion, fresh fruits are subjected to heat treatment. Its main purpose is to improve the release of oil from the plant cell. Thus, the fruits are prepared for further pressing. A commonly used digester consists of a cylindrical vessel with steam heating, equipped with a central rotating shaft carrying a number of blades (stirring).
Pressing
Palm oil extraction is carried out by mechanical pressing on a screw extruder. After pressing, the raw palm oil is sent to the washing stage.
filter
After pressing,add 10-20% hot water or steam to dissolve impurities in the crude oil, usually in a vertical container. clarification process, the oil is separated from the trapped water-soluble impurities. The oil-water mixture is then sent to a Vibrating filter to pre-separate the water from the oil, after which the oil is dried to remove residual moisture. Crude palm oil is an independent product.
Purification (refining)
For refining purposes, crude palm oil is treated with superheated steam. Next, the oil is sent to the bleaching apparatus. The bleached oil enters the deodorization column. The deodorization column is a closed cylindrical container with disc-shaped disc-shaped and annular perforated nozzles inside. To improve the refining process, the deodorization column operates under vacuum and at high temperature.
Fractionation
Due to the fact that each triacylglyceride has its own physico-chemical properties and its melting point, fractions are formed. The main type of palm oil processing is fractionation, which results in liquid and solid fractions. Oleic fraction is a liquid fraction of palm oil with a melting point of 19-24 °C. The stearin fraction is a solid fraction of palm oil with a melting point of 44-54 °C. In addition to olein and stearin, there are other fractions of palm oil, for example, superolein with a higher content of oleic acid up to 46% and a reduced content of palmitic acid or olein of double fractionation (melting point 13-17 ° C), the average fraction is 32-38 °C.
Palm Oil Refining&Fractionation Workshop Process Description
Clay
↓
Crude Palm Oil→Degumming→Drying&Dehydrating→Decoloring→Filtering→Deaerator→
↑ ↓
Phosphoric Acid Waste Clay
Deacidifing&Deodorizing→Fractionating→Product Oil
↓
Stearin
Ruian Every Machinery (MCRAYONE) is located in Zhejiang province, China. Our annual production capacity of oil press machines and related machines is around 10,000 sets. These machines have sold to all over the world, such as South Africa, Nigeria, America, India and so on. Thanks to our experience in the oil press industry (more than 40 years ), we know the demands and best-selling models of each market, so we can provide the most suitable machines to our customers.
We have an experienced engineer team, a professional Research and Design department, and a perfect Quality Control System. All the parts are made by our own factory and the quality can be guaranteed. In addition, we provide a quality warranty for one year.
Our business involves in small-sized oil pressing series, oil engineering designing, equipment manufacturing and installing, project contracting, technical service and so on. Moreover, we have important partnerships with many large Chinese companies, such as China Oil and Food Import and Export Corporation. We are their designated foreign trade exporter and their supplier for small oil presses.
Our goal is to establish a long-term relationships with our customers, based on providing quality machines at a reasonable cost and maximize the customer returns with comprehensive service.
In the course of our company's decades of development, we have obtained multiple official certificates, such as :
Our company has grown into one of the leading oil press manufacturers in China, and our popularity has spread abroad. We welcoming all kinds of orders.
