General Electric Company

Boris Nickolaevich Eiteneer

David Kelly Moyeda

Antonio Marquez

Vitali Victor Lissianski

Vladimir Zamansky

A method for reducing the emissions from combustion gases produced during a combustion process includes injecting a hydrocarbon-based reducing agent into the combustion gases to form a combustion gas mixture. The combustion gas mixture including oxides of nitrogen, NO, is directed through a selective catalyst reduction (SCR) system including a catalyst bed to remove NOfrom the combustion gas mixture and to produce an exhaust gas. In one embodiment, the exhaust gases are released from the SCR to the atmosphere.

Apparatus for a nitrogen purge system

Methods and systems for reducing the emissions from combustion gases

Methods and systems for reducing nitrogen oxides in combustion flue gas is provided. The method includes combusting a fuel in a main combustion zone such that a flow of combustion flue gas is generated wherein the combustion flue gas includes at least one nitrogen oxide species, establishing a fuel-rich zone, forming a plurality of reduced N-containing species in the fuel rich zone, injecting over-fire air into the combustion flue gas downstream of fuel rich zone, and controlling process parameters to provide conditions for the reduced N-containing species to react with the nitrogen oxides in the OFA zone to produce elemental nitrogen such that a concentration of nitrogen oxides is reduced.

Growing community of inventors

Irvine, CA, United States of America

Boris Nickolaevich Eiteneer