PASSIVE NOX ADSORBER COMPRISING A NOBLE METAL AND A MOLECULAR SIEVE HAVING AN OFF FRAMEWORK TYPE
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 OFF Framework Type. The inve...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | 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 OFF 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. |
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