Patents Assigned to CESt Chemical
  • Composition and process for the treatment of hydrogen sulfide
    Patent number: 7544639
    Abstract: Disclosed is a method for the treatment of hydrogen sulfide. The method preferably includes forming a solvent-surfactant blend, preparing a microemulsion by combining the solvent-surfactant blend with a carrier fluid and contacting the hydrogen sulfide with the microemulsion. In preferred embodiments, the solvent-surfactant blend includes a surfactant and a solvent selected from the group consisting of terpenes and alkyl or aryl esters of short chain alcohols.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: June 9, 2009
    Assignee: CESt Chemical
    Inventors: John T. Pursley, David L. Holcomb, Glenn S. Penny