Patent ID: 6260353
Filing Date: 2001-07-17
Classification: B01D,F01N,Y02A,Y02T

Abstract:
A NOx reduction system for combustion exhaust gas, comprising:a NOx catalytic converter mounted in an exhaust passage of an engine and operable to reduce NOx in the exhaust gas containing excess oxygen;an air supply device comprising an air supply passage that communicates at one end thereof with a portion of the exhaust passage located upstream of said NOx catalytic converter, and is connected at the other end thereof to an air supply source;a fuel supply device disposed in the air supply passage and operable to inject fuel into the air supplied from the air supply source;a heating device that heats the fuel added to the air to about 350-450.degree. C. to partially oxidize the fuel; anda control device for maintaining the temperature of the fuel heated in said heating device within the temperature range of about 350-450.degree. C.