... recovery Pre-treatment system: wasteoilafterpretreatment systemprocessing, pumped intothedistillation kettle;2.Distillation system: wasteoilin theautoclaveis heated tooperating temperaturebyburningfueloil, gas, coal, etc ... usage: can treat gasoline engine oil, diesel oil, rubber oil and otherwastelubricating oiloftheengine, avarietyofcleaning oil.5. High recovery rate: Base oil: 85%-87%, Gasoline: 3 ...