煤炭转化2017，Vol.40Issue(2)：59-64,80,7.
铝基锰系催化剂的低温脱硝性能
Denitrification Performance of Mn/Al Catalysts at Low Temperature
摘要
Abstract
The denitrification performance experiments,oxidation experiments and desorption experiments have been carried out over MnOx/Al2O3 and MnOx-CeO2/γ-Al2O3 prepared by sol-gel process in a fixed bed reactor.The results show that MnOx/γ-Al2O3 catalysts reach highest NO removal efficiency at 300 ℃,after adding CeO2 into the catalyst,the optimum temperature reduces to 250 ℃.The addition of CeO2 improves the activation ability of the catalysts at low temperature,but can cause excessive oxidation of NH3 which generates by-products like N2O when the temperature is higher than 300 ℃.The increase of the MnOx content can raise adsorption quantities of NH3 over the catalysts,and can also promate NO adsorbtion on different active sites,therefore the catalysts have high NO removal efficiency in wider temperature range.关键词
溶胶凝胶法/选择性催化还原/脱硝/氧化锰/氧化铈Key words
sol-gel method/selective catalytic reduction/denitrification/MnOx/CeO2分类
化学化工引用本文复制引用
钱琨,谢天,刘利军,苏胜,胡松,汪一,周英彪,向军..铝基锰系催化剂的低温脱硝性能[J].煤炭转化,2017,40(2):59-64,80,7.基金项目
国家自然科学基金资助项目(51576086和51576081)和湖北省白然科学基金资助项目(2015CFB191). （51576086和51576081）
