Iridium-nickel exhaust gas conversion catalyst and process

Process and catalyst for the catalytic conversion of nitrogen oxides (NOx), unburned hydrocarbons and carbon monoxide in internal combustion engine exhaust gases. The catalyst comprises essentially a composite of nickel and a minor proportion of iridium. This composite catalyst is found to be except...

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Bibliographische Detailangaben
Hauptverfasser:	MCARTHUR, DENNIS P
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Process and catalyst for the catalytic conversion of nitrogen oxides (NOx), unburned hydrocarbons and carbon monoxide in internal combustion engine exhaust gases. The catalyst comprises essentially a composite of nickel and a minor proportion of iridium. This composite catalyst is found to be exceptionally resistant to poisoning by sulfur and lead compounds present in the exhaust gases.