Patents Assigned to Hydrodec Development Corporation Pty Ltd
  • Refining of used oils
    Patent number: 9828558
    Abstract: The invention relates to a method for refining a feed oil having contaminants therein. In the method, the feed oil is exposed to reducing conditions at elevated temperature and pressure so as to reduce at least some of said contaminants. The resulting oil is then degassed under reduced pressure under non-oxidizing conditions and the resulting oil extracted with water so as to produce a refined oil.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 28, 2017
    Assignee: Hydrodec Development Corporation Pty Ltd
    Inventors: Mark McNamara, Gordon Chung, Yong Feng Wang, Michael Lucas, William Hand