| 摘要 |
<p>A process for removing contaminants from used motor oil (10), used motor oil from a source (12) is passed through a used oil feed pump (14) to a heater (16). An amount of base is added to the used oil of between 0.5 and 5 weight percent. The used oil and base then pass through an in-line mixer (22) and a heater (24).</p> |
