Waste lubricating oil purification and recovery process

We all know that waste pyrolysis oil can be converted into diesel with our waste oil distillation machine, but do you know that waste lubricant oil is also recyclable? Our waste oil distillation machine can convert waste lubricant oil into diesel. In the following article I am writing about the waste lubricating oil purification and recovery process.

Waste oil distillation machine

De-watering --The first step of waste lubricating oil purification and recovery process.

Normally waste lubricant oil contains about 5% -30% water. If the water content ＞30%， then there is no meaning to do the oil recovery. When gas temperature reach 100 degrees, keep this temperature for a while to allow all the water removed from waste lubricant oil in the form of vapor, to ensure the final diesel extracted from waste lubricant oil has 0 water content.

Our Malaysian customer's factory for waste lubricating oil purification and recovery

De-odoring--The second step of waste lubricating oil purification and recovery process.

Different from waste pyrolysis oil, during the early stage of oil distillation, the oil produced from waste lubricant oil is milk-like which has bad odor, we also call it dirty oil. Our waste oil distillation machine can separate this small quantity of dirty and smelly oil from the final diesel and collect it into a separate oil tank.

Waste oil distillation machine being installed in Malaysia

Purification and de-coloring---The 3rd step of waste lubricating oil purification and recovery process.

In the middle and final stage of oil distillation, the oil gas is treated by two kinds of catalyst, catalyst A and catalyst B. Function of catalyst B is to absorb impurities inside the oil gas and meanwhile remove the dark color to some extent. After processing by catalyst B, the pure oil gas will be processed by catalyst A, and function of catalyst A is to make heavy oil gas thoroughly break down. Then oil gas will flow into cooling system and condensed into diesel to be collected in the oil tank.

The system for waste lubricating oil purification and de-coloring

Further decoloring---The last step of waste lubricating oil purification and recovery process.

In order to keep a good oil color, decoloring agent is used into our waste oil distillation machine to further remove the oil color, after that we will get final diesel.

Waste lubricating oil purification and recovery factory in Malaysia

More about technical process of our waste oil distillation machine, please contact with us for details.