CATALYST FOR CLEANING INTERNAL COMBUSTION ENGINE EXHAUST GAS AND METHOD OF CLEANING EXHAUST GAS USING SAID CATALYST Russian patent published in 2012 - IPC B01J23/44 B01J21/10 B01D53/94 F01N3/10 

FIELD: chemistry.

SUBSTANCE: invention relates to catalysts for cleaning exhaust gas of an internal combustion engine. Described is a catalyst for cleaning internal combustion engine exhaust gas which has an active catalyst component containing at least palladium and magnesium, where said palladium contains at least palladium with surface charge corresponding to valence 2 and/or valence 4, wherein the proportion of palladium with surface charge corresponding to valence 0 is expressed as: valence 0/ (valence 0 + valence 2 + valence 4), which is less than 0.5. Described is a method of cleaning exhaust gas, involving treatment of hydrocarbons in the internal combustion engine exhaust gas, involving reduction of gas using the catalyst described above. Described is a method of removing hydrocarbon, involving treatment of exhaust gas having air/fuel ratio less than 14.7, from an internal combustion engine using the catalyst described above.

EFFECT: high catalyst activity.

13 cl, 3 tbl, 10 dwg, 19 ex