| 酸处理HZSM-5负载Cu催化剂的制备及其催化性能 |
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| 引用本文： | 郭锡坤,李治国,陈庆生.酸处理HZSM-5负载Cu催化剂的制备及其催化性能[J].汕头大学学报(自然科学版),2006,21(3):12-16. |
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| 作者姓名： | 郭锡坤 李治国 陈庆生 |
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| 作者单位： | 汕头大学理学院化学系,广东,汕头,515063 |
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| 摘 要： | 用H2SO4对HZSM-5分子筛进行处理,然后作为载体由浸渍法负载Cu制备Cu/HZSM-5催化剂,在富氧条件下考察其对于丙烯选择还原NO反应的催化活性.实验结果表明,用H2SO4处理HZSM-5有利于提高Cu/HZSM-5的催化活性.用3mol/L的H2SO4溶液处理HZSM-5、负载上4%Cu的Cu/HZSM-5活性最高,可以使NO的转化率在275℃时达到99.8%,在600℃时还接近50%.
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| 关 键 词： | HZSM-5 酸处理 选择性还原 氮氧化物 |
| 文章编号： | 1001-4217(2006)03-0012-05 |
| 收稿时间： | 2006-01-13 |
| 修稿时间： | 2006年1月13日 |
The Preparation of Acid-Treated Cu/HZSM-5 Catalyst and Its Catalytic Performance |
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| GUO Xi-Kun,LI Zhi-guo,CHEN Qing-sheng.The Preparation of Acid-Treated Cu/HZSM-5 Catalyst and Its Catalytic Performance[J].Journal of Shantou University(Natural Science Edition),2006,21(3):12-16. |
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| Authors: | GUO Xi-Kun LI Zhi-guo CHEN Qing-sheng |
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| Affiliation: | Department of Chemistry. Shantou University Shantou 515063, Guangdong, China |
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| Abstract: | Using H2SO4 to treat HZSM-5 zeolite,the Cu/HZSM-5 catalysts were prepared by impregnating copper on treated zeolite,and the catalytic activities of Cu/HZSM-5 catalysts for propylene selectively catalytic reduction NO were investigated under excessive O2 conditions.The results indicated that the catalytic activities of Cu/HZSM-5 catalysts were increased drastically after the acid-treatment.When the concentration of sulfuric acid was 3mol/L and the loading of copper was 4%,the conversion of NO reached 99.8% at 275 ℃ and kept nearly 50% at 600 ℃. |
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| Keywords: | HZSM-5 |
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