Effect of TiO_2 surface properties on the SCR activity of NOx emission abatement catalyst

NOx emission abatement catalysts V 2O 5 supported on various TiO 2 including anatase, rutile and mixture of both were investigated with various physico\|chemical measurements such as BET, NH\-3\|TPD, NARP, XRD and so on, and the effect of TiO\-2 surface properties on the SCR(selective catalytic reduction) activity of V\-2O\-5/TiO\-2 catalysts was studied. It was found that the TiO\-2 surface properties had strong affect on the SCR activity of V\-2O\-5/TiO\-2 catalysts. The stronger acidic property resulted in the higher exposure of active sites as well as the higher SCR activity.

钙中毒钒钛系脱硝催化剂的再生

钙中毒是钒钛系脱硝催化剂失活的重要原因之一。介绍脱硝催化剂的钙中毒机理,列举近年来钙中毒脱硝催化剂的主要再生技术,对比不同再生方法优缺点,对脱硝催化剂的再生研究前景进行展望。

脱硝催化剂及其性能影响因素研究

介绍了脱硝技术和V-Ti基催化剂的性能,重点论述了影响V-Ti基催化剂的性能、使用效率和使用年限的因素,指出在脱硝过程中,要严格控制温度,合理选择载体,使用含碱金属、碱土金属和P少的燃料煤,控制催化剂中的V2O5的含量不宜过高,在各种条件满足的情况下适当提高烟气速率。