DIESEL PARTICULATE FILTER HAVING ULTRA-THIN CATALYZED OXIDATION COATING

PROBLEM TO BE SOLVED: To provide an exhaust gas treatment system and a method for removing particulate matter and nitrogen oxide from a diesel engine exhaust gas flow, and to particularly provide an exhaust gas treatment system for simultaneously and efficiently treating the particulate matter toget...

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Bibliographische Detailangaben
Hauptverfasser:	LI YUEJIN, JOSEPH CHARLES DETTLING
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an exhaust gas treatment system and a method for removing particulate matter and nitrogen oxide from a diesel engine exhaust gas flow, and to particularly provide an exhaust gas treatment system for simultaneously and efficiently treating the particulate matter together with NOand the other gaseous component from the diesel engine exhaust gas flow.SOLUTION: The exhaust gas treatment system is an ultra-thin coating layer without causing excessive back pressure on its coating material by using an integrated filter covered with one kind or more of ultra-thin coating composition including a submicron particle. The submicron particle is one kind or more of basic metal oxide particle selected from basic metal oxide including alumina, zirconia, titania, magnesia hafnium oxide, run oxide, yttrium oxide, silica, a mixture of these and a platinum group metal of 0.01-0.5 μm.