The aforementioned exhaust gas purification catalytic converter, has with the catalytic converter active ingredient which supports

摘要

PROBLEM TO BE SOLVED: To purify the exhaust gases of an internal combustion engine mounted with a lean burn engine to get rid of the NOx included therein with high efficiency. ;SOLUTION: In a method for purifying the exhaust combustion gases from the internal combustion engine to get rid of the NOx included therein by reducing gases, such as carbon monoxide and hydrocarbon included in the exhaust gases in the presence of a catalyst, the catalyst formed by depositing at least one kind selected from Rh, Pt and Pd, an alkaline metal and at least one kind selected from B or P on a porous carrier is used.;COPYRIGHT: (C)2001,JPO