FIELD: machine building.
SUBSTANCE: catalyst NOx-absorber for treatment of exhaust gas from diesel engine. NOx-absorber catalyst comprises a first NOx-absorber material comprising a molecular sieve catalyst, wherein the molecular sieve catalyst comprises a noble metal and a molecular sieve, and wherein the molecular sieve contains a noble metal; second NOx-absorber material containing palladium (Pd) supported on cerium oxide; and a substrate having an inlet end and an outlet end.
EFFECT: proposed passive NOx-adsorber.
18 cl, 8 dwg
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