Palm Oil Extraction

Palm oil is one of the most produced oils in the world. The global demand for palm oil is overgrowing. The traditional manual crushing method for extracting palm oil can no longer meet the palm oil market's needs. The ZK three-phase decanter centrifuge provides an effective separation and purification program for palm oil processing plants' processing process. It can help palm oil mills process fresh palm fruit bunch (FFB) into crude palm oil (CPO), and it has the characteristics of high efficiency and high purity. Simultaneously, the equipment can work automatically and continuously for a long time, which can significantly improve the refining efficiency of palm oil. In the extraction of palm oil, the ZK palm oil decanter is used for: Direct processing of the crude oil after the screw press; Oil recovery from empty fruit bunch liquor; Crude oil recovery from the sludge after the CS tank; Crude oil recovery from the wastewater flow of the palm oil mill.

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ZK SEPARATION Decanters for Palm Oil Production Process

ZK separation is a company that manufactures and develops centrifuge equipment. For the palm oil separation and purification process, ZK has specially designed a food-grade palm oil three-phase centrifuge to realize the automatic separation and extraction of palm oil and the separation and recovery of palm oil sludge. The application of ZK palm oil decanter in palm oil processing plants will help palm oil mills separate and extract palm oil. Simultaneously, the equipment has good water, solid, and oil separation capabilities, which can help palm oil production companies increase oil recovery and reduce water consumption. At the same time, it also reduces waste disposal. In the end, waste reduction and siltation of waste pools are reduced, reducing operating costs. ZK centrifuge adopts a frequency converter to control all operating parameters of the machine. Whether it is at the rated speed or during the solid-liquid discharge process, it can significantly reduce the equipment's vibration and noise level during operation.

Palm Oil Decanter Parameters
Model Dia (mm) Rito Speed (rpm) G force Differential (rpm) Main Motor (kW) Back Motor (kW) Capacity m3/h Weight (kg) Dimension (L x w x H)(mm)
LWS250 x 1025C(X) 250 4.1 5000 3500 1~50 11 4 2~3 1250 2500 x 800 x 1150
LWS350 x 1550C(X) 350 4.1 4000 3136 1~35 22 5.5 5~8 2500 3300 x 1400 x 1040
LWS450 x 1845C(X) 450 4.1 3500 3087 1~34 30 11 12~15 3800 4000 x 1400 x 1100
LWS520 x 2150C(X) 520 4.1 3200 2981 1~34 45 15 18~25 5200 4500 x 1600 x 1400
LWS580 x 2400C(X) 580 4.1 3000 2948 1~30 50/75 18.5 25~30 6500 5000 x 1700 x 1400
LWS650 x 2600C(X) 650 4.1 2800 2854 1~27 75/90 22 32~35 8000 5500 x 1900 x 1500

Oil Palm Processing Process

  1. Fresh fruit bunches are sent to preliminary pressing factory within 24h after harvest (mainly to prevent the increase of FFA).
  2. Heat the fruit bunches to 150℃ and keep the temperature for 85min to sterilize the fruits and boil out the stalks.
  3. Use winder – peeling machine to separate the fruits from bunches. Bunches can be used for combustion and fruits are introduced to silo.
  4. Send the fruits into screw press for high-pressure pressing. The pressed cake containing kernel (unbroken, containing palm kernel oil) is squeeze out from the machine head, and the liquid (mainly palm oil) is discharged from the liquid outlet of the presser.
  5. The liquid is discharged from the outlet to the 100m³ tank, and be heated by water (maximum 100°C). After standing, the upper raw palm oil in the tank is directly discharged into the three-phase disc centrifuge to be separated; and the lower water containing palm oil is separated in the 3 phase decanter (oil+water+dreg).
  6. The palm oil separated in the three-phase decanter is returned to the 100m³ tank for standing and extraction of raw palm oil.
Palm oil processing process

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Palm Oil Decanter Working Principle

The palm oil extraction and separation process is carried out in a horizontal cylindrical bowl equipped with a screw conveyor. The palm oil sludge is fed into the bowl by screw pump. Then, the conveyor and the bowl begin to rotate at a high speed in the same direction but at a different speed. The centrifugal force generated by high-speed rotation causes solids to quickly deposit on the wall of the bowl. At the same time, two liquid phases of different densities (palm oil and water) will be separated by layers. conveyor of the decanter centrifuge continuously transports the solids to the conical end. After dehydration, the dry solids are finally discharged out of the centrifuge through the solids discharge port. The two clarified liquid phases overflow into the casing of the centrifuge through different outlets at the cylindrical end of the bowl. Then through the liquid phase discharge port, palm oil and water are collected and recycled. Palm oil decanter centrifuges are mainly used for extraction of pressed palm oil, separation of settling tank sludge or empty fruit bunch liquor. Now, more and more palm oil mills have introduced palm oil decanter to improve the efficiency of palm oil extraction and palm oil sludge separation.

ZK Palm Oil Decanter Application Cases

Why Choose ZK Palm Oil Decanter Centrifuge ?

  • ease to use decanter
    Easy Operation

    ZK palm oil decanter can run continuously and automatically. The control of the decanter centrifuge is completed through the touch screen of the control panel, and the one-key start and stop of the decanter can be realized through the control panel. The control panel interface is simple and easy to be understood, and operators can easily monitor the working status and understand the operating parameters.

  • durable

    All wear-prone areas of ZK palm oil centrifuges (separation liquid outlet, solids discharge output, screw conveyor and solids discharge section) are made of abrasion resistant material, and the rotating parts are made of high-strength centrifugally cast stainless steel. For the wear-resistant requirements of special industries, replaceable hard alloy wear-resistant pieces are added to the spiral blades.

  • lubrication
    Lubrication Ways

    In order to meet the actual needs of different customers, ZK palm oil decanter centrifuge provide three different lubrication ways (grease pump grease lubrication, lubricating oil circulating lubrication and oil mist lubrication) for customers to choose. All lubrication systems can re-lubricate the rotor bearings during centrifuge operation.

  • security
    Safety and Security

    ZK palm oil decanter differential speed automatic control technology can automatically adjust the screw conveyor differential speed, to prevent overload and blockage. At the same time, ZK decanter centrifuge has vibration protection, bearing temperature protection and overload protection system. This can avoid critical operating conditions and prevent damage to centrifuge components and bearings.

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