Recycling of used motor oil as an alternative method for production feedstock for the conversion processes

摘要

Used lubricating motor oil is a high pollutant material that requires responsible management. It may cause damage to the environment when dumped into the ground or into water streams including sewers. This may result in groundwater and soil contamination. Recycling of such contaminated materials will be beneficial in reducing lubricating motor oil costs. In addition, it will have a significant positive impact on the environment. Used oil can be refined to yield base oils that are blended into lubricating products, thus reducing the consumption of virgin oils and it can be used as a feedstock for hydro conversion for production fuels and fuel oil. This work investigates refining of used lubricating motor oil using solvent extraction method. The laboratory experiment was based on a full factorial design and two categorical factors with two levels were nominated which were solvent to used oil ratio and solvent type (2-Propanol and n-Butanol, MEK and blended the solvents with gazoline). The type of solvent used and the mixing ratio applied for different runs has shown significant effects on the yield of recovered oil. The yield with bisolvent type MEK+gasoline was higher than the other solvents. The yield of treated oil with butanol mixed with gasoline is 87.5% and it is so close to the yield when we used the butanol alone which is 88.6%.