What must be avoided during the palm oil pressing process?

Palm oil is the world's largest vegetable oil, and its pressing process directly affects oil quality, production efficiency and environmental safety. During the pressing process, some common problems may lead to a decline in oil quality, increased equipment loss and even safety accidents. This article will systematically analyze the key issues that must be avoided during palm oil pressing and propose corresponding solutions.

Avoid common problems in raw material processing

1. Fresh fruit bunch (FFB) maturity

The oil content of immature fruit is only about half of that of mature fruit, while overripe fruit is prone to increase the free fatty acid (FFA) content. The ideal harvest period should be when the fruit maturity reaches 90-95%. The pressing plant should establish strict raw material acceptance standards, equip with maturity detection equipment, and refuse to allow fruit bunches with maturity below 85% or overripe to enter the factory.

2. Acidity problem caused by fruit damage

Mechanical damage during transportation will increase lipase activity, and the FFA content may increase 5-10 times within 24 hours. And complete pressing within 24 hours after harvesting. The experience of a Malaysian plantation shows that the use of air cushion transport vehicles can reduce the FFA growth rate by 60%.

3. Impurity mixing problem

Impurities such as branches, leaves, mud and sand not only affect the color of the oil, but also wear the equipment. A multi-stage cleaning system should be set up, including hydraulic conveying and drum screening processes, to ensure that the impurity content is controlled below 0.5%.

Avoid mistakes in critical control points of the pressing process

The pressing process is the core stage of oil extraction, and even slight deviations in process parameters may lead to significant quality differences.

1. Incomplete sterilization problem

Under-sterilized fruits are hard to press and result in low oil yield. Proper sterilization loosens the fruit from the bunch and softens the pulp, making pressing more efficient and effective. Make sure the sterilizer is functioning correctly and that timing is strictly monitored.

2. Improper pressing temperature control

The temperature of the screw press exceeding 120℃ will cause protein denaturation and form an oil-protein complex that is difficult to separate.

3. Avoid choosing a low-quality palm oil pressing equipment

Palm oil pressing equipment is the core of the palm oil pressing process. Choosing high-quality palm oil pressing equipment can not only increase the output, but also improve the quality of palm oil. As palm oil pressing is often carried out under high temperature and pressure, low-quality palm oil pressing equipment will greatly affect the service life of the equipment and the quality of palm oil produced. Henan Glory has been producing palm oil pressing equipment for ten years, our engineers have done different palm oil production projects in Indonesia, Nigeria, Liberia, Kenya and other countries, accumulated rich project experience, and at the same time improve the palm oil pressing equipment of Henan Glory to meet the different needs of customers.

Palm oil pressing machines

Avoid operating and maintaining the palm oil pressing equipment without following operation instructions

It is easy to understand, if you want to extend the service life of the palm oil pressing equipment, you'd better follow the instructions to operate and maintain the palm oil pressing equipment. And if there is a problem in subsequent use, the first choice for you is to contact palm oil pressing equipment manufacture to get right guidance instead of solving it according to your own experience.

Avoid environmental pollution and improper treatment of by-products

1. Improper treatment of POME (palm oil mill effluent)

Untreated POME COD is as high as 50,000 mg/L. Modern factories should adopt anaerobic-aerobic combined process, combined with biogas power generation, which can reduce COD to below 100 mg/L, and generate 25 kWh of electricity per ton of FFB.

2. Empty fruit bunch (EFB) accumulation problem

EFB accounts for about 22% of the weight of FFB. The use of steam explosion pretreatment technology (210℃, 5 minutes) can convert EFB into high-value-added fiber products and increase profits.

3. Insufficient utilization of boiler ash

The ash contains 5-8% potassium. After activation treatment, it can be used as high-quality potash fertilizer, replacing 20-30% of the amount of chemical potash fertilizer.

It is worth mentioning that the Henan Glory Company's palm oil pressing equipment can reduce water and energy consumption through efficient mechanical palm oil processing equipment, make full use of waste for energy recovery, reduce dependence on external energy, and greatly reduce carbon emissions in the palm oil processing process.

By avoiding these problems during the palm oil pressing process, palm oil producers can improve oil yield, quality and overall efficiency. Through systematic risk management, not only can the quality and yield of oil products be improved, but also the production cost and environmental load can be significantly reduced, thus enhancing market competitiveness. Henan Glory is a professional palm oil processing machine manufacturer and is also an experienced palm oil mill plant project installation specialist. We are confident that we can provide you with high quality palm oil pressing machine and perfect after-sales service. Once you choose to cooperate with us, we will offer whole set palm oil mill plant solutions for you.