| 摘要 |
PURPOSE:To enable efficient removal of NOx from waste combustion gas contg. NOx, CO, hydrogen and more oxygen than that reacting theoretically with unburned matter such as hydrocarbon. CONSTITUTION:This material for removal of NOx has a 1st catalyst on the waste gas inflow side and a 2nd catalyst on the waste gas outflow side. The 1st catalyst is obtd. by carrying silver or silver oxide as an active species and at least one kind of metal selected among Sn, Al, Ga and In or oxide of the metal on a porous inorg. oxide. The 2nd catalyst is obtd. by carrying Cu as an active species or Cu and at least one kind of element selected among alkali metallic elements and rare earth elements on a porous inorg. oxide. |
