烟气中NO选择性催化氧化催化剂研究进展  

Review of study on catalysts for selective catalytic oxidation of NO in flue gas

作　　者：赵婷雯 姚明宇[1] 付康丽[1] 程广文[1] 杨嵩[1] 李阳[1] 蔡铭[1] 

机构地区：[1]西安热工研究院有限公司,陕西西安710054

出　　处：《热力发电》2017年第4期1-9,共9页Thermal Power Generation

基　　金：国家科技支撑计划(2014BAA07B04);陕西省第三批博士后科研项目基金~~

摘　　要：针对烟气中NO选择性催化氧化工艺,从催化机理、催化活性、抗硫及抗水蒸气等方面总结分析了活性炭、分子筛、贵金属及金属氧化物4类催化剂催化氧化NO的性能及其研究进展。其中,活性炭类催化剂的研究主要集中于材料改性及新型材料的制备;分子筛及其负载型催化剂的研究重点在于降低催化剂活性温度窗口;贵金属类催化剂活性较好,但过高的成本限制了其工业化应用;金属氧化物催化剂活性高、成本低廉,并可通过多种金属氧化物复配改善其催化性能,为目前最具发展前景的NO氧化工艺。On account of the selective catalytic oxidation of NO in flue gas, the characteristics and progress of NO catalytic oxidation using activated carbons, molecular sieves, noble metal and metal oxide catalysts are described, on the basis of catalytic mechanism, catalytic activity, anti-sulfur-corrosion and anti-steam-corrosion performance. The research on activated carbons mainly focuses on the material modification and new material preparation. Studies on the molecular sieves ptit emphasis on improving the activity of catalytic oxidation reactions in a broad temperature range. Although the noble metal catalysts possess good catalytic activity, the high cost of materials have restricted their industrial application. Using the metal oxide catalyst is one of the most industrial applicable NO catalytic oxidation method owing to their high catalytic activity, relatively low price and tunable properties.

关 键 词：烟气脱硝 NO 催化剂 选择性催化氧化法 活性炭 分子筛 贵金属 金属氧化物 

分 类 号：X511[环境科学与工程—环境工程]