| 负载型V2O5-WO3/TiO2催化剂的砷中毒研究 |
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| 引用本文： | 沈伯雄,熊丽仙,刘亭.负载型V2O5-WO3/TiO2催化剂的砷中毒研究[J].燃料化学学报,2011,39(11):856-859. |
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| 作者姓名： | 沈伯雄 熊丽仙 刘亭 |
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| 作者单位： | College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China |
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| 基金项目： | 国家自然科学基金(50976050,51176077);国家自然科学基金外国青年基金(51150110155) |
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| 摘 要： | 在实验室模拟了负载型V2O5-WO3/TiO2催化剂砷的中毒。采用催化剂活性测试，NH3-TPD、H2-TPR、XPS技术表征催化剂中毒特性。实验表明，砷中毒使催化剂活性降低明显。NH3-TPD、H2-TPR、XPS表征结果表明，As中毒使催化剂表面酸性降低，催化剂中W、Ti化学形态不受砷中毒的影响，而砷中毒改变了催化剂表面钒的化学形态，认为酸性降低和钒化学形态的改变引起了催化剂的中毒。
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| 关 键 词： | style="font-size: 9pt line-height: 选择性催化还原（SCR）" target="_blank">150%">选择性催化还原（SCR） 砷中毒 V2O5-WO3/TiO2 化学形态 |
| 收稿时间： | 2011-01-09 |
Study on arsenic poisoning for loading catalyst of V_2O_5-WO_3/TiO_2 |
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| SHEN Bo-xiong,XIONG Li-xian,LIU Ting.Study on arsenic poisoning for loading catalyst of V_2O_5-WO_3/TiO_2[J].Journal of Fuel Chemistry and Technology,2011,39(11):856-859. |
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| Authors: | SHEN Bo-xiong XIONG Li-xian LIU Ting |
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| Institution: | SHEN Bo-xiong,XIONG Li-xian,LIU Ting (College of Environmental Science and Engineering,Nankai University,Tianjin 300071,China) |
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| Abstract: | The process of arsenic poisoning for the loading catalyst of V2O5-WO3 /TiO2 was simulated in the experiment.The poisoning characters of the catalyst were studied by means of activity testing,NH3-TPD,H2-TPR and XPS.The results show that after the poisoning of arsenic,the activity of catalyst decreases greatly.Meanwhile,the NH3-TPD,H2-TPR and XPS analyses show that the acidity of catalyst decreases with the poisoning of arsenic.The chemical forms of W and Ti do not change with the interaction of arsenic,but t... |
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| Keywords: | SCR arsenic poisoning V2O5-WO3/TiO2 chemical form |
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