Patents by Inventor Roberto A. Abib

Roberto A. Abib 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).

  • Process for selectively removing hydrogen sulfide
    Patent number: 4585630
    Abstract: Hydrogen sulfide is removed from gas streams containing it with or without carbon dioxide by contacting the gas feed stream with an aqueous liquid containing sulfide and bisulfide ions and having a pH in the range from 9 to 12 to remove a minor portion of the hydrogen sulfide and then removing the remainder with an aqueous liquid containing sulfide and bisulfide ions having a higher pH in the range from 11 to 13.5.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: April 29, 1986
    Assignee: The Dow Chemical Company
    Inventors: Van A. Kent, Roberto A. Abib, Larry H. Kirby