What Is the Production Process of Crude Palm Oil?
Crude Palm Oil (CPO) is a primary oil product extracted from oil palm fruit and is one of the most widely produced vegetable oils in the world. Often hailed as a “golden crop” gifted by nature, the oil palm is extensively cultivated across tropical Africa, Latin America, and Southeast Asia. So, how exactly is crude palm oil produced from palm fruit bunches? This article provides a detailed breakdown of the complete production process.
From Fresh Fruit Bunches to Crude Palm Oil: The Palm Oil Pressing Process
Crude palm oil production begins with the harvesting of oil palm fruit bunches. Because lipases within the palm fruit can rapidly cause oil rancidity, the harvested bunches must be transported to the palm oil processing mill within 24 hours. As a professional manufacturer of grain and oil machinery with over 38 years of experience, Henan Huatai Cereals & Oils Machinery Co., Ltd. offers turnkey solutions for palm oil processing plants with capacities ranging from 10 to 1,000 tons per day.
Step 1: Raw Material Reception and Sterilization
Palm fruit bunches are unloaded, cleaned, and temporarily stored using a fully hydraulic unloading platform. Subsequently, the bunches are fed into a palm oil sterilizer tank for treatment with high-temperature steam. This critical step effectively deactivates enzymes, prevents oil rancidity, and ensures the high quality of the crude oil. Huatai Oil Machinery’s equipment covers every stage from raw material reception to sterilization, with core component designs optimized for the specific characteristics of palm fruit varieties from different regions.
Step 2: Threshing
After sterilization, the fruit bunches are conveyed via a bucket elevator to palm oil threshing machine, where strong vibrations ensure the complete separation of palm fruits from the empty fruit bunches. The separated empty fruit stalks can be utilized as biomass fuel, enabling resource recycling.
Step 3: Oil Pressing
The separated palm fruits enter the pressing station. After undergoing high-temperature cooking to break down the cellular structure of the pulp, the fruit is squeezed by palm oil screw press to extract the oil-rich crude oil. Huatai Oil Machinery’s proprietary twin-screw pressing technology, combined with a fully automated PLC control system, not only elevates the oil yield to industry-leading levels but also enables real-time monitoring of production parameters and remote operation and maintenance via IoT modules. The press cake is extruded from the discharge head, while the liquid fraction flows out through the lower outlet.
Step 4: Crude Oil Clarification
The pressed liquid enters the palm oil clarification section for sedimentation and separation. Hot water is first used to reduce the crude oil’s viscosity, followed by a vibrating screen to remove some solid impurities; the oil mixture is then heated to 85–90°C and separated in a clarification tank. After filtration, the oil is fed into a disc-type centrifuge to yield crude palm oil. The purified crude oil is then conveyed to storage tanks for temporary holding.
Step 5: Palm Kernel Recovery
The press cake (a mixture of fiber and palm kernels) is conveyed to a fiber separation system to separate the fiber from the kernels. The separated palm kernels are sent to a dedicated silo for subsequent palm kernel oil extraction. After the kernels undergo shell-breaking and kernel-shell separation, they pass through a palm kernel oil press, filter, and disc centrifuge to produce crude palm kernel oil (CPKO). Huatai Oil Machinery provides specialized palm kernel crackers and separators for efficient kernel-shell separation; the complete palm kernel oil extraction process encompasses a full suite of equipment, including cleaning screens, destoners, magnetic separators, crushers, kernel-shell separators, dryers, presses, and crude oil filters.
From Crude Oil to Refined Oil: The Palm Oil Refining Process
Freshly pressed crude palm oil contains impurities such as free fatty acids, pigments, gums, and odors, requiring further refining to meet edible standards. Huatai Oil Machinery offers three refining solutions: batch refining (suitable for small-scale lines of 1–20 TPD), semi-continuous refining (suitable for medium-to-large lines of 20–50 TPD), and fully continuous refining (suitable for large-scale oil plants of 50–600 TPD).
Palm oil refining process primarily involves four core steps:
Degumming/Deacidification: A washing method is employed to separate soap stock from the oil mixture. Deacidification is the process of removing free fatty acids and other acidic components. Physical refining methods may also be employed, involving the addition of hot water, boric acid, or similar agents to crude palm oil for degumming.
Bleaching (Decolorization): Adsorbents (such as activated bleaching earth) are used to remove pigments, residual soap, and metal ions, thereby improving the oil’s color.
Deodorization: The deacidified palm oil undergoes vacuum distillation at high temperatures to eliminate off-flavors and odors.
Fractionation (Optional): Leveraging the unique multi-melting-point characteristics of palm oil, precise temperature-controlled crystallization and membrane filtration are used to separate the refined oil into products with different melting points (e.g., soft oil, and stearin), significantly enhancing economic value.
Huatai Oil Machinery: A One-Stop Provider of Palm Oil Production Line Solutions
Henan Huatai Cereals & Oils Machinery Co., Ltd. is a national-level “Green Factory” and a national-level “Specialized, Refined, Unique, and Innovative” (SRUI) “Little Giant” enterprise. The company holds numerous patented technologies in palm oil pressing, refining, and fractionation, with products and services reaching over 70 countries and regions worldwide.
In recent years, Huatai Oil Machinery has achieved remarkable success in the palm oil processing sector: customizing a 45 T/H complete palm fruit pressing plant for a client in Cameroon (the country’s largest crude palm oil processing project); supplying a 20 T/D palm kernel oil pressing line and a 50 T/D palm oil refining line to Ghana; shipping a complete 100 T/D palm fruit oil pressing and refining plant to Uganda; and delivering a complete 100 T/D palm oil refining and fractionation plant to Pakistan. From Southeast Asia to Africa, Huatai Oil Machinery is driving the global palm oil industry toward intelligent and green upgrades through “Smart Manufacturing from China.”
If you are planning a palm oil processing project, please contact us. We can design a customized palm oil production line layout for you, providing a comprehensive, one-stop solution covering pressing, refining, and fractionation.
Website: https://palmoilmachine.com/
Email: info06@cnoilmachine.com
