【摘要】 对选择性催化还原脱硝用催化剂V2O5-WO3/TiO2的制备工艺进行了实验研究.采用溶胶-凝胶法制得TiO2凝胶,对凝胶进行不同条件下的干燥和煅烧处理,然后通过浸渍法在TiO2上依次负载WO3和V2O5,最终得到V2O5-WO3/TiO2催化剂.结果表明,TiO2凝胶的处理温度对催化剂结构和脱除NO的性能有一定的影响,TiO2凝胶干燥温度为105℃时制得的催化剂活性较高,在实验条件下NO脱除率最高可达98.3%.更多还原

【Abstract】 The preparation technology of selective catalytic reduction（SCR） catalyst V₂O₅-WO₃/TiO₂ was studied by experiment.A series of TiO₂ gel were made under different conditions as the support of catalysts.WO₃ and V₂O₅ were then loaded on as-prepared TiO₂ in turn.The results show that the treatment temperature of TiO₂ gel has an impact on the structure and activity of catalyst to some extent.When TiO₂ gel drying temperature is（105 ℃）,the activity of the catalyst is high.The NO conversion can reach 98.3% under the studied conditions.更多还原