Patents by Inventor Chi W. Lam

Chi W. Lam 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).

  • Acid gas removal process
    Patent number: 4729883
    Abstract: The invention relates to a process for the removal of acid gases from gaseous mixtures wherein said mixture is contacted with an aqueous alkaline solution comprising a compound of an alkali metal or ammonia and an alkanolamine-based promoter characterized in that the promoter is a mixture of at least one secondary alkanolamine and at least one N-alkyl-2-aminoethanol, said alkyl radical containing up to 3 carbon atoms.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: March 8, 1988
    Assignee: British Gas Corporation
    Inventors: Chi W. Lam, Terence J. Ritter, Peter Small