摘要：

The present disclosure is directed to an emission treatment system for NO<Sub>x</Sub> abatement in an exhaust stream of a lean burn engine. The emission treatment system includes a lean NO<Sub>x</Sub> trap (LNT) in fluid communication with and downstream from the lean burn engine and a low-temperature NO<Sub>x</Sub> adsorber (LT-NA) in fluid communication with and downstream of the LNT. Further provided is a method for abating NO<Sub>x</Sub> in an exhaust stream from a lean burn engine utilizing the disclosed system.

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