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富氧条件下Co/MOR 催化剂上甲烷选择催化还原NO

王虹 ,  李滨 ,  卢学斌 ,  李翠清 ,  丁福臣 ,  宋永吉

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引用本文: 王虹, 李滨, 卢学斌, 李翠清, 丁福臣, 宋永吉. 富氧条件下Co/MOR 催化剂上甲烷选择催化还原NO[J]. 燃料化学学报, 2015, 43(9): 1106-1112. shu
Citation:  WANG Hong, LI Bin, LU Xue-bin, LI Cui-qing, DING Fu-chen, SONG Yong-ji. Selective catalytic reduction of NO by methane over the Co/MOR catalysts in the presence of oxygen[J]. Journal of Fuel Chemistry and Technology, 2015, 43(9): 1106-1112. shu

富氧条件下Co/MOR 催化剂上甲烷选择催化还原NO

  • 基金项目:

    National Natural Science Foundation of China (21342009) (21342009)

    State Key Laboratory of Heavy Oil Processing(SKLHOP201501) (SKLHOP201501)

    Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality (PHR20110517). (PHR20110517)

摘要: 采用浸渍法制备了一系列用于甲烷选择催化还原(CH4-SCR)氮氧化物的Co/MOR催化剂。采用XRD、BET、TG-MS、H2-TPR、NH3-TPD和NO-TPD等手段对催化剂进行表征,并对其在甲烷选择催化还原氮氧化物反应中的活性进行评价。结果表明,钴物种以Co3O4尖晶石形态存在于Co/MOR催化剂中;与MOR载体相比,引入钴物种后,催化剂的酸性、氧化还原能力和对NO的吸脱附能力均发生了变化。在甲烷选择催化还原氮氧化物反应中,Co/MOR的催化活性与其氧化还原性能和对NO的吸脱附性能直接相关;其中,Co负载量为10%的Co(10)/MOR催化剂的CH4-SCR脱硝活性最好,在330℃下NO的转化率达54.2%。

English

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  • 收稿日期:  2015-05-12
  • 网络出版日期:  2015-07-08
通讯作者: 陈斌, bchen63@163.com
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