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Time：2025-05-24 11:58:52 Reading volume：
Industrial waste oil regeneration and refining equipment is a set of equipment specially used for recycling and treating waste mineral oil (such as waste lubricating oil, hydraulic oil, cutting oil, transformer oil, etc.), removing impurities, moisture, oxides and additives by physical or chemical methods, to restore or approach the performance of new oil. This type of equipment is of great significance in environmental compliance, resource recycling and reducing production costs.
- Sedimentation/centrifugal separation: remove large particles and free water.
- Coarse filtration: intercept solid pollutants through filter screens or filter elements.
- Distillation/film evaporation: separate light components (such as fuel oil) and heavy components (base oil) in oil.
- Pickling-white clay refining (traditional process): use sulfuric acid to remove colloids and oxides, and then use white clay to adsorb residual impurities (waste acid residue needs to be treated in an environmentally friendly way).
- Solvent extraction (advanced process): such as propane deasphalting, selective separation of harmful substances.
- Hydrofining (high-end process): under the action of a catalyst and high-pressure hydrogen, desulfurization, denitrogenation and saturation of olefins to produce high-quality base oil.
- Blending and additive compounding: supplement antioxidant, anti-wear and other additives to restore oil performance.
- Centrifuge: high-speed rotation to separate water and particles.
- Plate and frame filter: removes large particle impurities.
- Short-path distiller (molecular distillation): low-temperature vacuum distillation to avoid oil cracking.
- Thin film evaporator: efficient separation of light and heavy components, low energy consumption.
- Pickling-white clay reactor (gradually eliminated): needs to be equipped with a neutralization and waste residue treatment system.
- Solvent extraction tower, such as a propane deasphalting unit.
- Hydrogenation reactor: high-pressure hydrogen system and catalyst are required (high investment).
- Vacuum system: lower boiling point and prevents oil oxidation.
- Condensation recovery device: collects volatile components.
- Waste gas/wastewater treatment equipment: meet environmental emission standards (such as activated carbon adsorption, SCR denitrification).
- Waste lubricating oil regeneration: refine the base oil for blending new lubricating oil.
- Waste transformer oil resurrection: dehydrate and degas and reuse in power equipment.
- Waste fuel oil recovery: treat waste fuel oil from ships and industrial boilers.
- Metal processing waste oil: regenerate cutting fluid and quenching oil.
1. Green process substitution
- Gradually eliminate the pickling-white clay process and turn to environmentally friendly methods such as solvent refining and hydrogenation.
2. Modular design
- Small mobile waste oil regeneration equipment, suitable for on-site treatment.
3. Intelligent control
- Real-time monitoring of temperature, pressure and oil indicators through sensors and PLC.
- Compliance: It must comply with the "Technical Specifications for Pollution Control of Waste Mineral Oil Recycling" (such as China HJ 607-2011).
- Source of income: The sales cost of recycled oil is 30%-50% lower than that of new oil, and the cost of hazardous waste treatment is reduced.
- Return on investment: The investment in small and medium-sized equipment (processing capacity 1-5 tons/day) is about 500,000-2 million yuan, and the payback period is 1-3 years.
- Safety risks: Waste oil contains flammable substances, and the equipment needs to be explosion-proof.
- Secondary pollution: By-products such as waste acid slag, waste clay, and waste gas need to be properly handled.
- Raw material classification: Different waste oils (such as chlorinated oil and emulsified oil) require targeted processes.
Industrial waste oil regeneration equipment is a key technology to achieve a "circular economy". When choosing, it is necessary to comprehensively consider the processing volume, oil type, environmental protection requirements and investment budget.
