| 摘要 |
The nitrogen-oxide-removing catalyst of the invention includes ² zeolite bearing a rare earth metal oxide, and titanium dioxide bearing a rare earth metal oxide; includes ²-zeolite bearing a rare earth metal oxide and iron oxide or iron hydroxide, and titanium dioxide bearing a rare earth metal oxide and iron oxide or iron hydroxide; or includes a carrier made of a ceramic or metallic material, and a layer of the nitrogen-oxide-removing catalyst supported on the carrier. |
