US Patent:
20020031737, Mar 14, 2002
Inventors:
William Von Drasek - Oak Forest IL, US
Olivier Charon - Chicago IL, US
David Sonnenfroh - North Andover MA, US
Phillip Mulhall - Sandown NH, US
Mark Allen - Boston MA, US
Eric Wetjen - Santa Clara CA, US
Assignee:
American Air Liquide, Inc. - Walnut Creek CA
International Classification:
F23N005/08
Abstract:
Methods and apparatus are presented using tunable diode lasers for monitoring and/or controlling a high temperature process using an oxidizer containing Oand organic fuel. Real-time monitoring of key species such as O, CO, and HO allow determination of the global or local stoichiometry, gas temperature, particulate concentration, and air entrainment levels into the process. Coupling the measured information with a control system provides a means for optimizing and controlling the process.