PASSIVE NOx ADSORBER
AssigneeJohnson Matthey Public Limited Company
InventorsJillian Elaine COLLIER, Sanyuan YANG
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Abstract
A passive NOx adsorber is disclosed. The passive NOx adsorber is effective to adsorb NOx at or below a low temperature and release the adsorbed NOx at temperatures above the low temperature. The passive NOx adsorber comprises a noble metal and a molecular sieve having an LTL Framework Type. The invention also includes an exhaust system comprising the passive NOx adsorber, and a method for treating exhaust gas from an internal combustion engine utilizing the passive NOx adsorber.
Claims25
A passive NOx adsorber effective to adsorb NOx at or below a low temperature and release the adsorbed NOx at temperatures above the low temperature, said passive NOx adsorber comprising a first noble metal and a molecular sieve having an LTL Framework Type.
Dependencies are inferred from the claim text.