| 摘要 |
PROBLEM TO BE SOLVED: To provide a new NOx occlusion emission material which is excellent in NOx occlusion emission performance even in high-temperature environment, a gas purifying system provided with the NOx occlusion emission material and an exhaust gas purifying method using the exhaust gas purifying system.SOLUTION: An NOx occlusion emission material is configured such that copper is deposited onto a heat-resistant oxide; the content proportion of copper is 6 to 12 mass% with respect to the net amount of the heat-resistant oxide; and copper and NOx is occluded and emitted. Further, an exhaust gas purifying system 1 includes an internal combustion engine 2 which exhausts gas, an NOx occlusion emission part 5 which is arranged on the gas flow direction downstream side with respect to the internal combustion engine 2 and is provided with the NOx occlusion emission material and an exhaust gas purification part 6 which is arranged on the gas flow direction downstream side with respect to the NOx occlusion emission part 5 in order to purify a gas containing NOx. Therein, by using the exhaust gas purifying system 1, the exhaust gas is purified. |
