FIELD: chemistry.
SUBSTANCE: invention relates to catalyst articles and methods of treating exhaust gas. Multi-zone catalyst products are disclosed, methods of producing multi-zone catalyst articles and methods of controlling emissions in exhaust gases of a diesel engine using multi-zone catalyst articles, where the emission treatment system according to the various versions of the invention efficiently processes diesel engine exhaust gas using one multi-zone catalyst product.
EFFECT: invention provides significant reduction of material content in form of particles by more than 90 % along with active combustion of accumulating soot, additional reduction of load on soot in filter and reduced number of active regeneration cycles.
23 cl, 9 tbl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| CATALYSED PARTICULATE FILTER FOR USE IN PASSIVE SELECTIVE CATALYTIC REDUCTION | 2016 |
|
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| DIESEL OXIDATION CATALYST HAVING A CAPTURE REGION FOR IMPURITIES IN EXHAUST GASES | 2016 |
|
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| OXIDATION CATALYST | 2016 |
|
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| NOx CATALYST-ADSORBER | 2018 |
|
RU2757287C2 |
| NO ADSORBER-CATALYST | 2017 |
|
RU2759725C2 |
| CATALYST FOR OXIDATION OF DIESEL FUEL AND SYSTEM FOR EXHAUST GASES | 2015 |
|
RU2709543C2 |
| EXHAUST GAS PROCESSING SYSTEM | 2016 |
|
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| THREE-LAYER NOx CATALYST-ADSORBER | 2018 |
|
RU2756816C2 |
| PRODUCTS AND SYSTEMS FOR SELECTIVE CATALYTIC REDUCTION | 2017 |
|
RU2759839C2 |
| EXHAUST SYSTEM FOR ENGINE WITH COMPRESSION IGNITION, INCLUDING CAPTURE AREA OF VAPORIZED PLATINUM | 2017 |
|
RU2754936C2 |
