• 关键词：燃煤烟气  整体式催化剂  催化氧化  甲苯  一氧化氮  同步去除

• 基金项目：国家重点研发计划（No.2018YFB0605200）；广州市科技计划（No.201804020026）

• 李剑晗
• 华南理工大学环境与能源学院, 广州 510006

• 肖高飞
• 华南理工大学环境与能源学院, 广州 510006

• 郦杲辉
• 清华大学盐城环境工程技术研发中心, 盐城 224000

• 陈建军
• 清华大学盐城环境工程技术研发中心, 盐城 224000

• 司文哲
• 清华大学盐城环境工程技术研发中心, 盐城 224000

• 张益兰
• 华南理工大学环境与能源学院, 广州 510006

• 胡芸
• 1. 华南理工大学环境与能源学院, 广州 510006;2. 广东省大气环境与污染控制重点实验室, 广州 510006

• 摘要：采用工业上简易可行的单组分浸渍法和多组分浸渍法制备了一系列Cu/Fe/Mo改性的钒钛基整体式催化剂，考察了不同整体式催化剂制备工艺及浸渍液浓度对催化剂在模拟燃煤烟气中对甲苯和NO同步去除的性能，并优选出适应燃煤烟气的改性催化剂制备工艺及配方.结果表明，使用单组分浸渍法制备的浸渍液浓度为0.5%的Fe改性钒钛基整体式催化剂具有最优的活性和选择性，在350℃下对甲苯和NO的转化率分别达到99%和94.9%，对CO_x和N₂的选择性分别为88%和96.4%，XRD和SEM-EDS-Mapping结果表明，改性组分（Cu/Fe/Mo）均匀分散在钒基整体式催化剂表面，Fe改性材料具有最大的比表面积和孔容，因而可提高甲苯和NO的同步脱除性能.

• Abstract：A series of Cu/Fe/Mo modified vanadium-titanium based monolithic catalysts were prepared by industrially simple and feasible single-component impregnation method and multi-component impregnation method. The performances of different monolithic catalyst preparation processes and impregnating solution concentrations on the simultaneous removal of toluene and NO in simulated coal-fired flue gas were investigated. Furthermore, the preparation process and formula of the modified catalyst adapted to the coal-fired flue gas were optimized. The results showed that the Fe-modified vanadium-titanium based monolithic catalyst prepared by the single-component impregnation method with an impregnation solution concentration of 0.5% has the best activity and selectivity. It can achieve 99% and 94.9% conversions of toluene and NO at 350℃, and the selectivities of CO_x and N₂ were 88% and 96.4%, respectively. XRD and SEM-EDS-Mapping results displayed that the modified components (Cu/Fe/Mo) were uniformly dispersed on the surface of the vanadium-based monolithic catalysts. Fe modified catalyst had the largest specific surface area and pore volume. Therefore, the simultaneous removal performance of toluene and NO was improved.

• Key words：coal-fired flue gas  monolithic catalyst  catalytic oxidation  toluene  nitric oxide  simultaneous removal

• 
  摘要点击次数： 335 全文下载次数： 462