中国电机工程学报2011，Vol.31Issue(35)：29-34,6.
低温NH3选择性催化还原脱硝催化剂MnFexCe1-xTiO2抗硫再生性能研究
Study on the Sulfur Tolerance and Regeneration ofMnFexCe1-xTiO2 Catalyst for Low Temperature NH3-Selective Catalytic Reduction
摘要
Abstract
MnFexCe1-xTiO2 was prepared by coprecipitation method, activity, the sulfur tolerance and regeneration of catalysts in selective catalytic reduction （SCR） of NO with NH3 were tested. The results showed MnlFeo.gCeo.jTiO2 had the best catalytic behavior and excellent sulfur tolerance, the NO conversion could get up to 100% at 140 ℃. The deactivation behavior of Mn1Fe0.9Ceo-1/ TiO2 was reversible when the concentration of SO2 in flue was lower than or equal to 80 mg/m3. However the concentration of SO2 was higher than 80 mg/m3, the catalyst was poisoned irreversibly because of nitrate and sulfate formed on the surface. But the poisoned catalyst could be regenerated after washed by water, the activity could return to the catalytic behavior of fresh catalyst.关键词
NH3选择性催化还原/低温/MnFexCe1-xTiO2催化剂/抗硫性/再生Key words
NH3-selective catalytic reduction/low- temperature/MnFexCe1-xTiO2 catalyst/sulfitr tolerance/regeneration分类
化学化工引用本文复制引用
黄海凤,俞河,张峰,周小燕,卢晗锋..低温NH3选择性催化还原脱硝催化剂MnFexCe1-xTiO2抗硫再生性能研究[J].中国电机工程学报,2011,31(35):29-34,6.基金项目
浙江省科技厅重大专项项目（2007C03004-2). （）
