Patents by Inventor Kevin M. Robertson

Kevin M. Robertson 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 and system for increasing the absorption selectivity of H2S from a gas containing CO2 and H2S
    Patent number: 6884282
    Abstract: A system and a method for increasing the selectivity of H2S absorption in an aqueous amine treating processes for streams containing high CO2:H2S ratio mixtures in an absorption column by maintaining the temperature in the absorption column by withdrawing, cooling and returning cooled aqueous amine to the column at at least one location intermediate the sour gas inlet to the column and the lean gas outlet from the column.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: April 26, 2005
    Inventors: David K. Stevens, Kevin M. Robertson, Mark R. Tonjes, Lindsay Wedel Dreitzler
  • Method and system for increasing the absorption selectivity of H2S from a gas containing CO2 and H2S
    Publication number: 20030213363
    Abstract: A system and a method for increasing the selectivity of H2S absorption in an aqueous amine treating processes for streams containing high CO2:H2S ratio mixtures in an absorption column by maintaining the temperature in the absorption column by withdrawing, cooling and returning cooled aqueous amine to the column at at least one location intermediate the sour gas inlet to the column and the lean gas outlet from the column.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 20, 2003
    Inventors: David K. Stevens, Kevin M. Robertson, Mark R. Tonjes, Lindsay Wedel Dreitzler