METHOD FOR REMOVING NITROGEN OXIDES

PROBLEM TO BE SOLVED: To efficiently reduce and remove NOx from waste combustion gas contg. a larger amt. of oxygen than the amt. of oxygen reacting theoretically with unburnt components such as CO, H2 and hydrocarbons as well as NOx discharged from a burner using gaseous fuel. SOLUTION: Waste gas i...

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Hauptverfasser:	KADOYA SATOSHI, OSHIBA FUMIO, YAMASEKI KENICHI, YAHAGI MASAHIRO, SATOKAWA SHIGEO, FURUYAMA MASATAKA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To efficiently reduce and remove NOx from waste combustion gas contg. a larger amt. of oxygen than the amt. of oxygen reacting theoretically with unburnt components such as CO, H2 and hydrocarbons as well as NOx discharged from a burner using gaseous fuel. SOLUTION: Waste gas is brought into contact with a catalyst obtd. by carrying 0.5-15wt.% (expressed in terms of silver) silver or silver compd. on a porous metal oxide and coating a metallic honeycomb with the metal oxide at