Byproducts from Crude Palm Oil Processing
In the global oilseed processing industry, palm oil holds a pivotal position due to its high yield and wide range of uses. However, for many investors and palm oil processing plants, the large amount of byproducts generated during crude palm oil (CPO) processing is often viewed as an environmental burden or low-value waste. In reality, these so-called “wastes” hold enormous economic value.
As a high-tech enterprise specializing in the research and development and manufacturing of grain and oil machinery, Henan Huatai Cereals and Oils Machinery Co., Ltd. (hereinafter referred to as “Huatai Oil Machinery”) has been deeply involved in the industry for 38+ years. It not only provides efficient palm oil pressing and refining equipment but also strives to help customers achieve a green circular economy that “utilizes every resource.” Today, we will analyze in detail the byproducts of crude palm oil processing and their high-value utilization pathways.
Three Major Categories of Byproducts in Crude Palm Oil Processing
The processing of palm oil in a conventional-scale plant mainly includes pressing and refining stages. Besides obtaining crude palm oil (CPO) as the main product, three major categories of substances with recycling value are generated:
Processable byproducts: Palm kernels, free fatty acids.
Recyclable byproducts: Palm fruit pomace, empty palm fruit bunches (EFB), palm kernel meal.
Byproducts requiring treatment: Oily wastewater, waste bleaching clay.
In the past, due to technological limitations, these byproducts were mostly discarded directly or simply burned, wasting resources and causing environmental pollution. Now, thanks to advanced palm oil processing equipment, they have been transformed into feed, fuel, and even high-value-added chemical raw materials.
Pathways for Turning Major Byproducts into “Gold”
1) Palm Kernel: The Overlooked “Second Oil Depot”
Both palm fruit pulp and palm kernel have high oil content (46-50% oil in pulp, 50-55% oil in kernel). Maintaining the integrity of the palm kernel and recycling it during palm fruit pressing is a key step in improving the efficiency of palm oil mills.
After being washed, crushed, and pressed, the recycled palm kernel yields valuable palm kernel oil (PKO). Unlike palm oil, palm kernel oil is rich in saturated fatty acids, has a high melting point, and good oxidative stability, making it an ideal raw material for manufacturing high-end margarine, cocoa butter substitutes for chocolate, ice cream, cosmetics, and surfactants. The palm kernel meal after oil extraction is rich in protein and fiber and can be processed into high-quality animal feed.
2) Empty Fruit Bunches and Pomace: A Treasure Trove of Biomass Energy
The empty fruit bunches (EFB) remaining after palm fruit removal and the palm pomace (fiber) after pressing are the most troublesome “solid waste” for palm oil processing plants. However, they are actually excellent biomass fuels.
Through Huatai Oil Machinery’s biomass boiler system, these wastes can be directly burned, providing steam and heat for the entire palm oil processing process, significantly reducing the plant’s dependence on external energy sources. Furthermore, the fiber from the empty fruit bunches can be processed into furniture boards, car seat fillings, and even the ash from combustion is rich in potassium and can be processed into organic fertilizer.
3) Palm Oil Fatty Acids: Industrial Additives
During the palm oil refining and deodorization process, a certain amount of free fatty acids (i.e., oleic acid, palmitic acid, etc.) are generated. These substances are important basic chemical raw materials. After being widely collected, they can be used to produce soap, detergents, candles, lubricants, and rubber industry additives. Collecting these byproducts is equivalent to setting up a small-scale chemical plant for the oil refinery.
4) Waste Bleach and Oily Wastewater: The Last Line of Environmental Protection
In the palm oil refining and decolorization section, the used activated bleaching clay (waste bleaching clay) contains a large amount of oil and is classified as hazardous waste. Direct burial would cause soil pollution. Through specialized thermal desorption equipment or by having it treated by professional institutions, the oil and grease can be recovered, and the harmless bleaching clay can be used for brick making or soil improvement. Simultaneously, oily wastewater must undergo a strict wastewater treatment system to achieve compliant discharge or reuse as greywater; this is a basic requirement for modern palm oil refineries to achieve green production.
Huatai Oil Machinery: How to Help Customers Maximize the Value of By-products?
Faced with such diversified by-product utilization paths, single palm oil equipment often falls short. This is precisely the core competitiveness of Henan Huatai Cereals and Oils Machinery Co., Ltd.
As a national-level key “Little Giant” enterprise specializing in specialized and innovative technologies and a Henan Province manufacturing single-item champion enterprise, Huatai Oil Machinery, with 38+ years of experience in oil engineering design, provides customers with more than just a palm oil press; it offers a complete “comprehensive palm fruit utilization solution.”
1) Full-Chain Process Design
For palm fruit processing, Huatai Oil Machinery’s complete palm oil equipment covers all stages from raw material receiving, sterilization, fruit threshingl, pressing, crude oil processing, to palm kernel recovery systems and biomass boiler power generation systems.
For example, Huatai particularly emphasizes the importance of the “sterilization” process in the pre-treatment section. This not only improves the oil yield but also ensures the integrity of the palm kernels, laying a solid foundation for the subsequent palm kernel oil pressing line.
2) Customized Environmental and Energy-Saving Modules
Huatai Oil Machinery utilizes cryogenic absorption technology in its extraction workshops to effectively recover solvents and volatile substances, reducing losses, specifically designed for the high-temperature and high-humidity climates of Africa and Southeast Asia.
In a large-scale project exporting 10 tons/hour to Cameroon, Huatai Oil Machinery not only provided the main palm oil pressing line but also integrated environmental wastewater treatment modules and a biomass boiler system, ensuring that the client can directly convert empty palm fruit bunches into heat energy, achieving green production and compliance with emission standards.
3) Practical Experience in International Projects
The combination of theory and practice is the only standard for testing technology. Huatai Oil Machinery’s products have been exported to 70 countries and regions worldwide, with international orders consistently accounting for over 70%.
In 2025 alone, Huatai Oil Machinery provided customized services to clients in Cameroon, Southeast Asia, and other countries. For example, for a palm oil project in Cameroon, the engineering team conducted over ten on-site technical communications to ensure the equipment was adapted to the characteristics of local palm fruit varieties, helping the client establish a complete industrial chain beyond crude oil production, encompassing palm kernel recovery and by-product power generation. This “turnkey project” and subsequent technical guidance ensure that customers have no worries after production begins.
Conclusion
In the palm oil processing industry, profits often lie in the details, in seemingly useless byproducts. Making full use of the byproducts from crude palm oil processing is not only a requirement of environmental regulations, but also key to improving the overall economic efficiency of palm oil mill mills.
Henan Huatai Cereals and Oils Machinery Co., Ltd., as a leading enterprise in China’s intelligent manufacturing of grain and oil equipment, has always adhered to technological innovation as its driving force, committed to helping global customers tap into every bit of value from palm fruit. Whether you are planning to build a new modern palm oil mill or looking to upgrade your existing palm oil production line to achieve resource recycling, Huatai Oil Machinery can provide one-stop service from equipment manufacturing to process design, helping you transform green waste into tangible commercial wealth.
Website: https://palmoilmachine.com/
Email: info06@cnoilmachine.com
