Patents by Inventor Albert O. Massey

Albert O. Massey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of treating a spent caustic stream from a sour water stripper to reduce the sulfide content thereof
    Patent number: 5246597
    Abstract: This invention relates to a method of reducing the concentration of sulfides in an aqueous system by first treating the aqueous system with hydrogen peroxide to lower the sulfide concentration to approximately 300 ppm, or less, then subsequently treating the aqueous system with chlorine dioxide to further reduce the sulfide concentration to a desirable level. The method of the invention is capable of reducing the sulfide content of the treated aqueous system to as low as tenths of a part of sulfide per million parts of sour water.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: September 21, 1993
    Assignee: Ashland Oil, Inc.
    Inventors: Dale A. Jenson, Anne Z. Jezak, Albert O. Massey