Patent ID: 6331232
Filing Date: 2001-12-18
Classification: B01D,F01N,F02B,G01N,Y02A

Abstract:
Apparatus for the reduction of nitrogen oxides in a gas stream comprising:an oxygen ion conducting substrate,at least one anode disposed on said substrate,at least one cathode disposed on said substrate,a voltage source connected to said anode and said cathode, anda plurality of plates including a first side and a second side defining a plurality of longitudinally extending ducts for guiding said gas stream, at least one of said first and second sides of said plurality of plates comprising said cathode and the other side of said first and second sides of said plurality of plates comprising said anode, said plurality of plates including at least one pair of adjacent plates, and including at least one of said first and second sides of said at least one pair of said adjacent plates comprising a pair of cathodes facing each other,said anode and said cathode comprising conductive patterns,said cathode comprising gold, whereby said nitrogen oxides are adsorbed and dissociated on said cathode, nitrogen may recombine into nitrogen gas on said cathode, and oxygen ions are transported through said substrate from said cathode to said anode.