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Cu-V/Ti-PILCs催化氧化烟气NO
发表时间：2011-12-31 浏览量：1767 下载量：453
| 全部作者： | 童华，赵青涛，王京刚，徐仲均 |
| 作者单位： | 北京化工大学化学工程学院 |
| 摘 要： | 将Cu与V氧化物负载在等体积浸渍法制备的钛交联粘土(TiO2-pillared clay, Ti-PILCs)的载体上，得到烟气NO氧化催化剂（Cu-V/Ti-PILCs），考察各种制备条件下催化剂的活性及稳定性。结果显示：当V水/V丙酮=1∶2，负载4% CuO和2% V2O5，并在500℃煅烧时制得Cu-V/Ti-PILCs催化剂，且NO浓度为350 mg/m3，O2体积分数10%，N2平衡气，空速12 000 h-1时，NO的氧化度可以达到48%，并在含7.3%（体积分数）和700 mg/m3 SO2的模拟烟气中，稳定活性10 h以上，初步显示其耐硫、水中毒性能良好。 |
| 关 键 词： | 大气污染防治工程；烟气脱硝；钛交联粘土；NO氧化 |
| Title： | Preparation and stability of Cu/V exchanged TiO2-pillared clay for oxidization of NO in flue gas |
| Author： | TONG Hua, ZHAO Qingtao , WANG Jinggang, XU Zhongjun |
| Organization： | College of Chemical Engineering, Beijing University of Chemical Technology |
| Abstract： | Cu/V exchanged TiO2-pillared clays (Cu-V/Ti-PILCs) for catalytic oxidization of NO in flue gas was prepared by volumetric dipping. Catalytic activity and stability to SO2 and H2O poisoning were investigated. Experimental results showed that Cu-V/Ti-PILCs catalysts prepared at the conditions Vwater/Vacetone=1∶2, 4% CuO load, 2% V2O5 load, and 500℃ of calcination temperature had reached 48% NO conversion under reaction conditions of 350 mg/m3 NO, 10% O2 volume fraction, N2 balance, and superficial space velocity 12 000 h-1. It maintained activity more than 10 hours with 7.3%volume fraction water vapor and 700 mg/m3 SO2 in the feed gas, showing a good resistibility to SO2 and H2O poisoning. |
| Key words： | air pollution control engineering; flue gas denitrification; Ti-PILCs; NO oxidation |
| 发表期数： | 2011年12月第24期 |
| 引用格式： | 童华，赵青涛，王京刚，等. Cu-V/Ti-PILCs催化氧化烟气NO[J]. 中国科技论文在线精品论文，2011，4（24）：2278-2282. |
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