FIELD: exhaust gas purification.
SUBSTANCE: NOx absorber catalyst is proposed for the processing of exhaust gas from an engine running on a depleted mixture. The NOx absorber catalyst includes a molecular sieve catalyst including noble metal and a molecular sieve, wherein the molecular sieve contains noble metal; oxygen-containing material for the protection of the molecular sieve catalyst; and substrate having an inlet end and an outlet end.
EFFECT: obtaining passive NOx-adsorber.
15 cl, 3 tbl, 5 dwg
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