OXIDATIVE CATALYST AND EXHAUST SYSTEM FOR DIESEL ENGINE Russian patent published in 2020 - IPC B01J23/34 B01J23/38 B01J23/58 B01J23/63 B01J37/02 B01J23/42 B01J23/44 B01J35/04 B01D53/56 B01D53/62 B01D53/92 B01D53/94 F01N3/22 

FIELD: transport machine building.

SUBSTANCE: invention relates to an oxidation catalyst for treating exhaust gases of a diesel engine, comprising: a region of a first porous oxide coating, containing first platinum group metal (PGM), first carrier material and NO_x storage component, where NO_x storage component contains alkali metal, alkali-earth metal and/or rare-earth metal, wherein the rare earth metal is selected from a group consisting of lanthanum, yttrium and combinations thereof; second porous oxide coating region comprising platinum (Pt), manganese (Mn) and a second support material, where the second carrier material contains a refractory metal oxide, which is aluminum oxide, doped with silicon dioxide in a total amount of 0.5 to 15 wt %, and where platinum (Pt) is located on a second support or deposited on a second support, and manganese (Mn) is located on a second carrier or deposited on a second carrier; and a substrate having an inlet end and an outlet end. Invention also relates to an exhaust system and a vehicle comprising a diesel engine and an oxidation catalyst.

EFFECT: technical result consists in increase of activity in oxidation of nitrogen oxide (NO) in exhaust gases of diesel engine.

27 cl, 10 dwg, 5 tbl, 8 ex