CATALYST AND METHOD FOR REDUCING AND REMOVING NITROGEN OXIDE

PURPOSE:To provide a catalyst for reducing and removing nitrogen oxide having excellent capacity at low temp. CONSTITUTION:An iron ion is added to ZSM-5 wherein an SiO2/Al2O3 mol ratio is 20-60 in an amount of at least 1wt.% to obtain a catalyst having high activity at low temp. and reducing and rem...

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Hauptverfasser:	TERAOKA YASUTAKE, KAGAWA SHIYUUICHI
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:	PURPOSE:To provide a catalyst for reducing and removing nitrogen oxide having excellent capacity at low temp. CONSTITUTION:An iron ion is added to ZSM-5 wherein an SiO2/Al2O3 mol ratio is 20-60 in an amount of at least 1wt.% to obtain a catalyst having high activity at low temp. and reducing and removing nitrogen oxide from exhaust gas containing nitrogen oxide, hydrocarbon and oxygen.