UCO & Waste Oil Pretreatment Production Line

UCO/Waste Oil Pretreatment Production Line

Ocean's advanced UCO pre-treatment line is engineered to transform high-acid waste oils into stable, low-FFA feedstock ready for efficient biodiesel conversion. Our waste oil to diesel plant efficiently reduces FFA from over 50% to below 1% through a catalyst-free glycerin esterification process, eliminating acid waste discharge and minimizing energy consumption. This robust pretreatment solution ensures reliable, high-quality output for your downstream biodiesel production, enhancing overall plant efficiency and sustainability.

1.Pre-Treatment & Impurity Removal

The UCO pre-treatment line begins with the removal of solid particles, water, and hydratable gums through filtration and centrifugation. To address non-hydratable phospholipids and metal ions, citric acid and caustic are introduced. Soapstock and impurities are then separated via disc centrifugation, ensuring the UCO pre-treatment line delivers clean feedstock for deep purification.

2.Adsorption & Deep Purification

The UCO pre-treatment line dries and heats the degummed oil under controlled conditions. After reaching the required temperature, the waste oil to diesel plant mixes the oil with adsorbent in a vacuum environment to remove residual pigments, trace metals, and other deep impurities. Ocean’s waste oil to diesel plant separates the spent adsorbent using vertical leaf filters and bag filters, ensuring the processed oil meets the clarity and purity standards required for downstream biodiesel or renewable fuel reactions.

3.Catalyst-Free Glycerin Esterification

The waste oil to diesel plant feeds purified high-acid oil into enamel reactors and utilizes biodiesel by-product glycerol as the esterifying agent. By eliminating external catalysts, it efficiently converts Free Fatty Acids (FFA) into glycerides, reducing FFA levels from over 50% to below 1%. The waste oil to diesel plant removes generated water and volatiles under vacuum, driving the reaction to completion and yielding pretreated oil that can directly proceed to transesterification.

Key Advantages

Proven Deacidification Performance

Our plant reliably processes 50-1000 MT/day of high-acid waste oil, consistently reducing FFA from over 50% to below 1%, creating optimal feedstock for biodiesel production.

Catalyst-Free & Sustainable Process

The core esterification technology is designed to utilize biodiesel’s glycerol by-product as the esterifying agent, eliminating the need for external catalysts and minimizing chemical waste.

Strict Quality Assurance

With ISO-certified management across design, materials, fabrication, and testing, we ensure every pretreatment line meets rigorous standards for durability and long-term operational stability.

Complete Lifecycle Service

From engineering consulting to commissioning and technical support, Ocean provides full-service coverage, ensuring your waste oil to diesel plant operates at peak efficiency.

Raw Materials

Ocean's pretreatment line is designed for challenging high-FFA feedstocks, including used cooking oil (UCO), recovered oils from palm oil mill effluent (POME), acid oils from refining, and animal fats. By converting these high-acid waste streams into usable biodiesel feedstock, our UCO pretreatment solution not only ensures a stable, economical raw material supply but also significantly reduces environmental disposal burdens and supports a sustainable circular energy system.

Main Equipment

Decanter Centrifuge

Provides continuous, efficient solid-liquid separation, removing sludge and water to protect downstream equipment and ensure process stability.

Adsorption Tower

Utilizes specialized adsorbents to remove pigments, metal ions, and other deep impurities, crucial for protecting catalysts in downstream biodiesel units and ensuring final fuel quality.

Esterification Tank

The key equipment for the catalyst-free glycerin esterification process. Its corrosion-resistant enamel interior withstands the high-acid environment, enabling efficient FFA reduction to prepare ideal biodiesel feedstock.

Deodorizer

Removes odorous compounds and volatile impurities through steam stripping under high vacuum, stabilizing the pretreated oil and ensuring it meets quality specifications.

Q.What is unique about Ocean's glycerin esterification process?
- A: Our process uses glycerol (a biodiesel by-product) to esterify FFA without adding external chemical catalysts. This eliminates catalyst cost and waste, simplifies operations, and integrates seamlessly into the biodiesel production cycle, making it more economical and sustainable.
Q.How does Ocean ensure UCO pretreatment processing machinery quality for such corrosive service?
- A: For critical components like reactors handling high-acid oils, we use premium corrosion-resistant materials such as enamel-coated steel. Our quality system covers design, material selection, welding, and rigorous testing to guarantee durability and a long service life.