文献类型：期刊文献

中文题名：金属助剂对蜂窝状MnO_x-CeO_2/ACH催化剂低温脱硝行为的影响

英文题名：Effect of metal additives on the catalytic performance of MnO_x-CeO_2 supported on activated carbon honeycomb in NO removal at lowtemperature

作者：王艳莉[1];李晓晓[1];詹亮[1];李翠[1];乔文明[1];凌立成[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2014

卷号：42

期号：11

起止页码：1365

中文期刊名：燃料化学学报

外文期刊名：Journal of Fuel Chemistry and Technology

收录：CSTPCD;;EI(收录号：20145200365975);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金(20806024;51002051;51472086);上海市自然科学基金(12ZR1407200)

语种：中文

中文关键词：蜂窝状活性炭;MnOx-CeO2;选择性催化还原;NO;助剂

外文关键词：activated carbon honeycomb; MnOx-CeO2; selective catalytic reduction; NO removal; additive

摘要：考察了铁、锡助剂对蜂窝状活性炭担载MnOx-CeO2(MnOx-CeO2/ACH)催化剂的低温脱硝活性及抗硫性能的影响。结果表明,添加FeOx助剂,有利于改善MnOx和CeO2在ACH载体表面的分散性,使得催化剂的脱硝活性在80~200℃随反应温度的升高而增加,且抗SO2毒化性能提高;SnOx助剂的添加,使得催化剂在较高温区仍具有较高脱硝活性,并表现出良好的抗SO2毒化性能,在250℃时NO转化率由无SO2条件下的98.6%略降至SO2存在时(700min)的87.8%。
The effect of FeOx and SnOx additives on the catalytic performance of MnOx-CeO2 supported on activated carbon honeycomb （MnOx-CeOE/ACH） in NO removal at low temperature was investigated. The results indicated that the addition of FeOx can improve the distribution of manganese and cerium Oxides on the ACH support and enhance the resistance to SO2 poisoning in NO removal; the activity Of FeOx-modified MnO^- CeO2/ACH increases with the increasing reaction temperature from 80 ~C to 200 ~C. Meanwhile, the MnOx- CeO2/ACH catalyst modified with SnO~ exhibits high NO removal activity and good resistance to SO2 poisoning at relatively high temperatures; over SnOx-modified MnOx-CeO2/ACH at 250 ℃, NO conversion decreases slightly from 98.6% in the absence of SO2 to 87.8% in 700 min upon the introduction of SO2 in the feed.