Patents by Inventor Lloyd L. Lavely, Jr.

Lloyd L. Lavely, Jr. 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).

  • Furnace adapted to produce lime for use in downstream flue gas desulfurization process
    Patent number: 6391266
    Abstract: A limestone furnace calcination process involves injecting finely divided limestone particles into a zone in a furnace at which the temperature of the flue gas stream, as it passes through the zone, is above the minimum calcination temperature and below the minimum effective quicklime utilization/sulfation temperature. In conventional furnaces, the minimum calcination temperature, or the calcium carbonate decomposition temperature, ranges from about 1,365 to 1,430° F. The minimum effective quicklime utilization/sulfation temperature refers to the temperature below which the rate of quicklime sulfation of the lime produced by calcination of the limestone is sufficiently slow to result in negligible calcium sulfate formation on the resultant lime, and in conventional furnace applications ranges from 1,600 to 1,800° F.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: May 21, 2002
    Assignee: Black & Veatch Corporation
    Inventor: Lloyd L. Lavely, Jr.
  • Process for producing highly reactive lime in a furnace
    Patent number: 6146607
    Abstract: A limestone furnace calcination process involves injecting finely divided limestone particles into a zone in a furnace at which the temperature of the flue gas stream, as it passes through the zone, is above the minimum calcination temperature and below the minimum effective quicklime utilization/sulfation temperature. In conventional furnaces, the minimum calcination temperature, or the calcium carbonate decomposition temperature, ranges from about 1,365 to 1,430.degree. F. The minimum effective quicklime utilization/sulfation temperature refers to the temperature below which the rate of quicklime sulfation of the lime produced by calcination of the limestone is sufficiently slow to result in negligible calcium sulfate formation on the resultant lime, and in conventional furnace applications ranges from 1,600 to 1,800.degree. F.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: November 14, 2000
    Inventor: Lloyd L. Lavely, Jr.