Patents Assigned to Cadence Environment Energy, Inc.
  • Method of mixing high temperature gases in mineral processing kilns
    Patent number: 8267685
    Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln. The method comprises injection of air with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/precalciner vessel.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: September 18, 2012
    Assignees: Cadence Environment Energy, Inc., Ash Grove Cement Company
    Inventors: Eric R. Hansen, Ralph A. Supelak, James R. Tutt, Peter F. Way