CATALYST FOR CLEANING EXHAUST GAS FROM DIESEL ENGINE

PROBLEM TO BE SOLVED: To suppress the discharge of particulate and sulfate contained in an exhaust gas from a diesel engine and improve a HC and CO cleaning rate in a low temperature zone. SOLUTION: This catalyst for cleaning an exhaust gas from a diesel engine is structurally designed so that a hea...

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Hauptverfasser:	KASAHARA KOICHI, MATSUMOTO SHIGEJI, SAKANO KOJI, AONO NORIHIKO, KUMAI YOKO, NAGAMI TETSUO
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 suppress the discharge of particulate and sulfate contained in an exhaust gas from a diesel engine and improve a HC and CO cleaning rate in a low temperature zone. SOLUTION: This catalyst for cleaning an exhaust gas from a diesel engine is structurally designed so that a heat-resistant inorganic oxide layer containing a catalytic component deposited on a catalyst carrier. In this case, the heat- resistant inorganic oxide layer composed of at least, one type of component selected from among silica, titania and zirconia, and potassium titanate. In addition, the heat-resistant inorganic oxide layer contains at least, one type of catalytic component selected from among platinum, palladium and rhodium.