Patents by Inventor Ed A. Pirsh

Ed A. Pirsh 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).

  • Integrated injection and bag filter house system for SO.sub.x -NO.sub.x -particulate control with reagent/catalyst regeneration
    Patent number: 4793981
    Abstract: A process of controlling emission of SO.sub.x, NO.sub.x and particulates from a coal-fired boiler system is disclosed. A reagent/catalyst in powdered form is added into the combustion flue gas stream intermediate the boiler and economizer at a temperature below the melting point of the powder. The reagent/catalyst and ammonia are reacted with the SO.sub.x and NO.sub.x while the flue gas passes through the economizer. Further reaction is achieved as the gas is passed through the filter cake which forms on the filterhouse bags.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: December 27, 1988
    Assignee: The Babcock & Wilcox Company
    Inventors: John B. Doyle, Ed A. Pirsh, William Downs