Patents by Inventor Edward C. Yit Nieh

Edward C. Yit Nieh 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).

  • Removal of acid gases from gas streams
    Patent number: 4775519
    Abstract: Improvement are provided in accordance with the present invention by a continuous process for the treating of a gas stream containing acid gas components wherein the gas stream is counter currently contacted in an absorption zone with an aqueous solution of a mixture of N-methyldiethanolamine with imidazole or a methyl substituted imidazole to thereby provide for acid gas (e.g., CO.sub.2) absorption.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: October 4, 1988
    Assignee: Texaco Inc.
    Inventor: Edward C. Yit Nieh