Patents by Inventor Donald E. Krider

Donald E. Krider 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).

  • Aqueous ammonia injection scheme
    Patent number: 5098680
    Abstract: An improved process for reducing nitrogen oxide emissions to the atmosphere comprises the injection of ammonia vapor, formed by the vaporization of an aqueous ammonia solution, into a combustion effluent. A dilute aqueous ammonia phase, produced by such vaporization, may also be injected, either in vapor or liquid form, into a combustion effluent. Temperature and pressure control of such vaporization may be used to maintain the desired concentration of ammonia injected into the combustion effluent.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: March 24, 1992
    Assignee: Exxon Research & Engineering Company
    Inventors: William D. Fellows, Donald E. Krider