CATALYST COMPRISING CLINOPTILOLITE FOR REMOVING NITROGEN OXIDE

摘要

PURPOSE: A zeolite catalyst for removing nitrogen oxide having strong durability on an acidic gas such as hydrogen chloride, a manufacturing method of the zeolite catalyst for removing nitrogen oxide, and a method for removing nitrogen oxide of an exhaust gas using the zeolite catalyst are provided. CONSTITUTION: In nitrogen oxide removing catalyst of catalyst system in which nitrogen oxide in an exhaust gas containing hydrogen chloride and nitrogen oxide is removed by an ammonia reducing agent, the catalyst for removing nitrogen oxide comprises a) a zeolite support containing clinoptilolite having a Si/Al weight ratio of 5 to 20; and b) a metallic catalyst comprising the first metal of copper, and one or more of the second metals of cerium or lanthanum, wherein the metallic catalyst is supported by the support of a), and a support amount is 0.1 to 5 wt.% of weight of the catalyst.