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Abstract
The newly developed technology for treating waste automobile‐lubricating oil is based on vacuum distillation of them mixed with crude atmospheric distillation residues. More than 95% of hazardous heavy metals, ash and carbon residue contents in the waste lube oils were eliminated to vacuum residues and these residues were successfully converted into asphalt for the pavement of a road. The increased yield and improved quality of distilled products were experimentally identified in the range of 0∼20% blending ratio of waste lube oils to atmospheric residues. These experimental results showed the reasonable agreements with the calculated values provided by process simulation using PRO II.
