| 摘要 |
A particulate and a nitric oxide clarification plant are provided to purify NOx, CO, and HC which is not cleaned up in the LNT catalyst. A particulate and a nitric oxide clarification plant comprises a CPF filter(10) collecting the particulate in particulate matters, a LNT catalyst(20) formed in the backend of CPF filter, and a HC-SCR catalyst(30) formed in the backend of LNT catalyst. The LNT catalyst reduces the NOx. The HC-SCR catalyst is comprised of the component arousing the HC-SCR reaction.
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