YJ-SR Base Oil Solvent Extraction Machine

YJ-SR Base oil Solvent Extraction Machine

Deeply purify and refine all distilled oil, improve the oil standard close to API Group II

YJ-SR base oil solvent extraction machine can refine all kinds of recycled base oil, vacuum side streams,acid-refined oil, black diesel oil, waste hydraulic oil, waste transformer oil, and all kinds of waste mineral oil that don’t contain solid particles into new oil. Through solvent refining, impurities in lubricating oil can be effectively removed, the purity and quality of base oil can be improved, close to the standard requirements of API Group II base oil classification, increasing the viscosity index of base oil, reducing sulfur content, increasing saturation, and removing impurities.

Technology Description of YJ-SR Base oil Solvent Extraction Machine

We adopt a composite solvent in conjunction with separation, extraction, and displacement device to displace and dissolve sulfides, oxides, nitrides, resins, asphalt, aromatics, and unsaturated hydrocarbons in the base oil. Finally, the used solvent can be recycled and reused, and the refining process is completely pollution-free. The processing process does not produce secondary waste, no need to add white clay and silica gel or other chemical additives, with low refining cost and low loss. It could get more than 98% refined oil, and the solvent loss is only 0.8%-2%.

Working Process

• Extraction & Centrifugal Separation: The base oil, after distillation, is subjected to a solvent in five-stage centrifugal extractors. Impurities such as sulfides, oxides, nitrides, colloids, asphalt, arenes, and unsaturated hydrocarbons are completely dissolved in the solvent here. The mixture of the solvent and oil, because it has a different specific gravity, is separated by centrifugation from the pure base oil.
• Solvent Recovery: The solvent used in the process of extraction is recovered by a stainless-steel distillation kettle, and hence the operator can reuse it in continuous operations at a low cost of operations.
• Removal of Solvent from Base Oil: Centrifugal extraction leaves the semi-finished base oil containing around 5% solvent. The oil is transferred to a semi-finished oil distillation kettle and is heated at 150–160°C, which removes the solvent completely.
• Heating & Heat Exchange Options: The system can provide support for different heat modes, including electromagnetic heating, fuel oil heating, natural gas heating, and thermal oil heating, giving flexibility according to customer demand.
• Exhaust Gas Treatment: The exhaust gas treatment system oxidizes and burns VOC compounds in the exhaust gas, meeting entirely the “Overall Air Pollutants Emission Standards.”

Application Field of YJ-SR Base oil Solvent Extraction Machine

Centrifugal extractors, also known as Liquid-liquid centrifugal extractors or centrifugal contactors, have been widely used in industries such as the pharmaceutical, fine chemical, food products, nuclear etc.

• Oil industry: Lubricating oil extraction, diesel desulfurization, and so on.
• Pharmaceutical industry: Such as used for extracting ethyl acetate, methylene dichloride, normal butanol, chloroform, or extracting the Chinese traditional medicine.
• Food industry: Extraction and separation of lactic acid and citric acid fermentation broth, edible oil, food pigment, etc.
• Environmental protection industry: Used single-stage or multistage extraction and reverse extraction to treat wastewater with phenol or acid, printing and dyeing wastewater (H acid, T acid, etc.), DMF wastewater, naphthalene sulfonic acid wastewater, etc.

In addition, oil-water separation or extraction for marine sewage, groundwater, or separating organic solvents from the water.

YANGJIANG is committed to new product research and development, dedicated to providing you with the highest cost-effective, high-quality products and meticulous after-sales service. If you have any requirements and questions about the Single-stage and Multi-stage Centrifugal Extractor, please feel free to contact us.