| 稀土元素对Mn/TiO2-PILC低温SCR性能影响研究 |
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| 引用本文： | 姚燕,马宏卿,沈伯雄,唐雪娇. 稀土元素对Mn/TiO2-PILC低温SCR性能影响研究[J]. 工程热物理学报, 2012, 0(4): 707-710 |
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| 作者姓名： | 姚燕 马宏卿 沈伯雄 唐雪娇 |
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| 作者单位： | 南开大学环境科学与工程学院 |
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| 基金项目： | 国家自然科学基金(No.50976050;51176077);环保公益性行业科研专项经费(No.201109004) |
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| 摘 要： | 通过浸渍法制备了8%Mn/TiO2-PILC以及稀土元素R（Ce,La）改性的8%Mn-2%R/TiO2-PILC催化剂,考察了所制备催化剂的低温NH3-SCR活性和抗水抗硫特性。结果发现,Ce的添加改变了催化剂的物相以及氧化还原特性,从而改变了催化剂的NO去除活性;稀土元素的添加可以减缓催化剂的失活速率,但是抗水抗硫特性仍然不理想。
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| 关 键 词： | 低温 NH3-SCR TiO2-PILC MnO_x 稀土元素 中毒 |
The Modified Effects of Rare Earth to Mn/TiO2-PILC for Low Temperature SCR |
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| O Yan,A Hong-Qing,N Bo-Xiong,ang Xue-Jiao. The Modified Effects of Rare Earth to Mn/TiO2-PILC for Low Temperature SCR[J]. Journal of Engineering Thermophysics, 2012, 0(4): 707-710 |
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| Authors: | O Yan A Hong-Qing N Bo-Xiong ang Xue-Jiao |
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| Affiliation: | (College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China) |
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| Abstract: | 8%Mn/Titania-pillared clays（8%Mn/TiO2-PILC） and rare earth modified catalysts 8%Mn-2%R/TiO2-PILC were prepared by the impregnation method for the low-temperature selective catalytic reduction（SCR） of NO with NH3,their resistance to water vapor and sulfur dioxide.It was found that the addition of rare earth would change the phy-chemstry properties of 8%Mn/TiO2-PILC and inhence inprove the NO conversion.The addition of rare earth,especially Ce,suppresses the deactivation to a degree although the SO2 resistances of the catalysts are weak. |
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| Keywords: | low-temperature NH3-SCR TiO2-PILC MnO_x rare earth poison |
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