| 以偏钛酸为原料的催化剂的脱硝性能研究 |
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| 引用本文： | 张建,潘远凤,张家佳,杨贵涵. 以偏钛酸为原料的催化剂的脱硝性能研究[J]. 当代化工, 2014, 0(9): 1683-1685 |
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| 作者姓名： | 张建 潘远凤 张家佳 杨贵涵 |
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| 作者单位： | 广西大学 化学化工学院广西石化资源加工及过程强化技术重点实验室,广西 南宁,530004 |
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| 基金项目： | 国家自然科学基金，项目号21306027；广西自然科学基金，项目号2013GXNSFCA019004；广西石化资源加工及过程强化技术重点实验室主任课题基金，项目号2012Z04。 |
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| 摘 要： | 以偏钛酸为原料通过浸渍法和固相物质的热分解法来制备以NH3为还原剂选择性催化还原NOx的催化剂V2O5-WO3/TiO2。着重考察催化剂组成、NH3/NO摩尔比和模拟烟气中O2浓度对催化剂脱硝性能的影响。催化剂的脱硝性能测试结果表明催化剂V2O5(1.2%)-WO3(8.8%)/TiO2具有较高的催化活性和较宽的活性温度窗口,NO的转化率最高可达98.77%。综合考虑NH3逃逸、设备腐蚀和环境问题,NH3/NO摩尔比控制在1.2以内比较合适;富氧条件对脱硝催化反应的进行更有利。
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| 关 键 词： | 浸渍法 热分解法 V2O5-WO3/TiO2催化剂 脱硝性能检测 |
De-NOx Performance of Catalysts Prepared From Metatitanic Acid |
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| ZHANG Jian,PAN Yuan-feng,ZHANG Jia-jia,YANG Gui-han. De-NOx Performance of Catalysts Prepared From Metatitanic Acid[J]. Contemporary Chemical Industry, 2014, 0(9): 1683-1685 |
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| Authors: | ZHANG Jian PAN Yuan-feng ZHANG Jia-jia YANG Gui-han |
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| Affiliation: | . (Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University, Guangxi Nanning 530004, China) |
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| Abstract: | The V205-WO3/TiO2 catalyst was prepared from metatitanic acid by the methods of wet impregnation and thermal decomposition of solid material for selective catalytic reduction （SCR） of NOx with NH3. Effects of catalyst composition, mole ratio of NH3 to NO, and 02 concentration in simulated flue gas on De-NOx performance of the catalyst were investigated. Moreover, the results of De-NOx tests demonstrate that V2O5（1.2%）-WO3（8.8%）/TiO2 catalyst has high catalytic activity and broad activity temperature window, and the NO conversion reaches 98.77%. Considering the NH3 escape, equipment corrosion and environmental issues, it＇s suitable to control the molar ratio of NH3/NO within 1.2. De-NOx catalytic reaction is more favorable in oxygen-rich conditions. |
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| Keywords: | Wet impregnation Thermal decomposition method V2O5-WO3/TiO2 catalysts De-NOx test |
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