FIELD: process engineering.
SUBSTANCE: invention relates to exhaust has purification. Proposed converter comprises catalyst to accumulate NOx and SOx consisting of substrate made up of at least one component selected from the group consisting of Al2O3, CeO2, ZrO2, TiO2 and zeolite with specific surface area making 30 m2/g or higher; and coat layer comprising powder consisting of at least one component selected from the group consisting of Al2O3, CeO2, ZrO2, TiO2 and zeolite, and material accumulating NOx and SOx. Note here that accumulating material and noble metal are applied on said powder. Said substrate features greater specific surface area.
EFFECT: increased accumulated amount of NOx in low-temperature areas.
5 cl, 2 tbl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND DEVICE FOR TREATMENT OF EXHAUST GAS | 2006 |
|
RU2385760C2 |
| ELEMENT FOR SUPPRESSION OF HYDROGEN SULFIDE PRODUCTION AND CATALYST FOR TREATMENT OF EXHAUST GASES | 2007 |
|
RU2391130C2 |
| TRAP-TYPE CATALYST FOR CLEANING NOX-DEPLETED EXHAUST GASES AND EXHAUST GAS CLEANING SYSTEM | 2012 |
|
RU2557056C2 |
| METHOD AND DEVICE FOR CLEANING OF EXHAUST GAS | 2007 |
|
RU2392456C2 |
| CATALYTIC EXHAUST GAS NEUTRALISER | 2012 |
|
RU2549402C1 |
| EXHAUST GAS CATALYST CONTAINING TWO DIFFERENT NOBLE METAL-MOLECULAR SIEVE CATALYSTS | 2014 |
|
RU2680525C1 |
| NOADSORBING CATALYST | 2017 |
|
RU2747358C2 |
| CATALYST-TRAP NO IN CONDITIONS OF LEAN MIXTURE WITH IMPROVED CHARACTERISTICS AT HIGH AND LOW TEMPERATURES | 2016 |
|
RU2708854C2 |
| NOx CATALYST-ADSORBER | 2018 |
|
RU2757287C2 |
| OXIDATION CATALYST FOR INTERNAL COMBUSTION ENGINE OPERATING ON LEAN MIXTURE | 2011 |
|
RU2577856C2 |
