초록 ▼

An apparatus and method including a conduit with a nozzle for injecting NOx inhibiting reagent into an appropriate temperature window in the flue gas of a package, utility, or industrial type boiler to reduce emissions of NOx. A sensor mounted adjacent the nozzle to measure the flue gas temperature

An apparatus and method including a conduit with a nozzle for injecting NOx inhibiting reagent into an appropriate temperature window in the flue gas of a package, utility, or industrial type boiler to reduce emissions of NOx. A sensor mounted adjacent the nozzle to measure the flue gas temperature thereby locating the appropriate temperature window, and a controlled drive for moving the nozzle to the temperature window.

대표청구항 ▼

An apparatus for injecting NOx inhibiting reagent into a boiler flue gas, wall means defining a gas passage for the flow of the flue gas, the reagent best inhibiting NOx formation at a temperature window, the flue gas temperature at the window changing with changing boiler load, the apparatus compri

An apparatus for injecting NOx inhibiting reagent into a boiler flue gas, wall means defining a gas passage for the flow of the flue gas, the reagent best inhibiting NOx formation at a temperature window, the flue gas temperature at the window changing with changing boiler load, the apparatus comprising: a conduit having a nozzle for injecting NOx inhibiting reagent into the flue gas; mounting means for movably mounting the conduit to the wall means for changing nozzle position; drive means operatively connected to the conduit for moving the conduit along the mounting means; a temperature sensor for sensing the flue gas temperature to locate the temperature window; and control means connected between the drive means and the temperature sensor for operating the drive means to move the nozzle to the temperature window.