| 以二甲醚为还原剂的氮氧化物存储还原试验研究 |
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| 引用本文： | 周相满,陈晓玲,吴娇,吴敏超,覃萍,张武高.以二甲醚为还原剂的氮氧化物存储还原试验研究[J].上海交通大学学报,2012,46(5):666-670. |
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| 作者姓名： | 周相满 陈晓玲 吴娇 吴敏超 覃萍 张武高 |
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| 作者单位： | （上海交通大学 机械与动力工程学院， 上海 200240） |
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| 基金项目： | 国家自然科学基金资助项目(50976070) |
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| 摘 要： | 试验研究了以Pt/Co-BaO/γ- Al2O3为催化剂、二甲醚（DME）为还原剂的NOx储存还原（NSR）性能，以及还原时间和温度对NSR的影响规律，并通过程序升温脱附和程序升温表面反应分析了DME对其存储NOx热稳定性的影响.结果表明，在等温DME-NSR循环过程中，NOx的转化效率保持在60%~70%以上；DME能够促进催化剂中硝酸盐的分解和NOx的脱附，并还原NOx.
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| 关 键 词： | 二甲醚 NOx存储还原 程序升温脱附 程序升温表面反应 |
| 收稿时间： | 2011-10-21 |
Experimental Study of NO_x Storage/Reduction(NSR)Using DME as Reducer |
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| ZHOU Xiang-man,CHEN Xiao-ling,WU Jiao,WU Min-chao,QIN Ping,ZHANG Wu-gao.Experimental Study of NO_x Storage/Reduction(NSR)Using DME as Reducer[J].Journal of Shanghai Jiaotong University,2012,46(5):666-670. |
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| Authors: | ZHOU Xiang-man CHEN Xiao-ling WU Jiao WU Min-chao QIN Ping ZHANG Wu-gao |
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| Institution: | (School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China) |
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| Abstract: | Using Pt/Co-BaO/γ- Al2O3 as the catalyst, dimethyl ether (DME) as the reductant, this paper investigated the NOx storage-reduction (NSR) percormance and the influence of the reduction time and temperature on the DME-NSR. The result indicates that the NOx conversion ratio for NOx can be kept between 60%~70%. Then the influence of DME on the thermal stability of the stored NOx over the NSR catalyst was investigated by using the temperature programmed desorption (TPD) and DME temperature programmed surface reaction (DME-TPSR). The result indicates that DME can promote the decomposition of the nitrate over the catalyst, and then react with the decomposed NOx. |
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| Keywords: | dimethyl ether (DME) NOx storage-reduction (NSR) temperature programmed desorption (TPD) temperature programmed surface reaction (TPSR) |
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