| 摘要 |
PURPOSE:To improve an anti-poisoning property to arsenic, by allowing a tita nium oxide to support a compd. of at least one element among V, Cr, Mn, Mo, etc., adding with a substance having high specific surface area such as activated carbon and forming a catalyst. CONSTITUTION:The titanium oxide support is allowed to support the compd. of at least one element selected among a group consisting of V, Cr, Mn, W, Mo, Fe, Co, Cu and etc. Then the catalyst for removing nitrogen oxide is obtained by adding and mixing the material having high specific surface area selected among a group consisting of acti activated carbon, zeolite, silica and silica-alumina to the titanium oxide support. The content of the additional material having high specific surface area is preferable to be under 50wt.% of the total amt. of the catalyst and the material having high specific surface area preferably has the specific surface area of >=200m<2>/g. Then, the amt. of the active component such as V, W or Mo supported with the catalyst support is suitable to be 1-6wt.% of the total amt. |
