Purification of used lubricating oil refers to regeneration of some kind of lubricating oil (such as engine oil, hydraulic oil, transformer oil, rubber refining oil, rolling oil, quenching oil, thermal oil, textile machinery oil, aviation kerosene The impurities (water, solid impurities, free acids, colloids and asphalt, etc.) by purification. After purification, base oil components and various additive components in the lubricating oil are kept as complete as possible, while impurities like water, solids, bitumen etc are separated. Thus the performance of the lubricating oil is restored and it will keep relevant production equipment in good production and working condition.
Our lubricating oil purification process generally includes the following processes:
Separation of impurities, that is, through metal filtration, heating sedimentation or centrifugal separation, impurities with higher density or larger particle size in the old lubricating oil are separated.
Dehydration by flash distillation is to heat the old lubricating oil to 60-70 degrees Celsius, and vaporize and separate the emulsified water from the lubricating oil under a high vacuum state.
Separation of suspended impurities, that is to use nano-scale membrane filtration, electrostatic adsorption, chemical flocculation, micron-scale mechanical filtration, adsorption material adsorption, etc. to remove suspended impurities such as carbon powder, metal powder, colloid, and asphaltene in lubricating oil. of tiny polar substances to improve the cleanliness of lubricating oil.
Our company can carry out overall optimized design based on customer requirements and actual conditions, combining the most advanced technical means at home and abroad (such as vibrating membranes, modified membranes, vacuum dehydration, electrostatic adsorption, efficient flocculants, high-performance adsorption materials, etc.) , to design and manufacture waste lubricating oil online purification equipment or offline purification equipment that meets safety and environmental protection requirements, has the lowest purification cost and the best purification effect for customers.