| 稀土Cu/HZSM-5催化剂NH_3选择性催化还原法低温脱硝性能 |
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| 引用本文： | 蔡卡莎,张相俊,李岩,王虹,李翠清,宋永吉.稀土Cu/HZSM-5催化剂NH_3选择性催化还原法低温脱硝性能[J].工业催化,2015,23(12):1027-1030. |
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| 作者姓名： | 蔡卡莎 张相俊 李岩 王虹 李翠清 宋永吉 |
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| 作者单位： | 北京石油化工学院化学工程学院，北京 102617 |
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| 基金项目： | 国家自然科学基金（21343009）资助项目；重质油国家重点实验室开放基金（SKLHOP201501）资助项目 |
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| 摘 要： | 采用浸渍法制备Re(x)Cu/HZSM-5(Re=La,Ce,Pr,Nd;x=0.5,1,2)系列催化剂。采用XRD和H_2-TPR等对催化剂进行表征,在微型固定床反应器中评价催化剂低温NH_3选择还原NO的催化活性。结果表明,Re(x)Cu/HZSM-5(Re=La,Ce,Pr,Nd;x=0.5,1,2)催化剂具有较好的低温NH_3选择还原NO催化活性,以La为助剂和添加质量分数1%的La(1)Cu/HZSM-5催化剂低温脱硝活性较好,T85和T95分别为153℃和164℃,活性温度窗口宽,(153~362)℃时,NO转化率超过95%。
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| 关 键 词： | 催化化学 稀土Cu/HZSM-5催化剂 NH3选择性催化还原法 低温脱硝 |
Performance of rare earth-Cu/HZSM-5 catalysts for selective catalytic reduction of NO by NH3 at low temperature |
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| Cai Kasha,Zhang Xiangjun,Li Yan,Wang Hong,Li Cuiqing,Song Yongji.Performance of rare earth-Cu/HZSM-5 catalysts for selective catalytic reduction of NO by NH3 at low temperature[J].Industrial Catalysis,2015,23(12):1027-1030. |
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| Authors: | Cai Kasha Zhang Xiangjun Li Yan Wang Hong Li Cuiqing Song Yongji |
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| Affiliation: | School of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China |
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| Abstract: | A series of Re(x)Cu/HZSM-5 (Re=La,Ce,Pr,Nd;x=0.5,1,2) catalysts was prepared by impregnation method.The catalysts were characterized by XRD and H2-TPR.The performance of the catalysts for selective catalytic reduction of NO by NH3 were tested in the fixed-bed micro-reactor.The results showed that Re(x)Cu/HZSM-5 (Re=La,Ce,Pr,Nd;x=0.5,1,2) catalysts possessed better activity for selective catalytic reduction of NO by NH3 at low temperature,and La(1)Cu/ZSM-5 catalyst with La mass fraction 1% had better catalytic activity for NH3-SCR at low temperature; T85 and T95 were 153 ℃ and 164 ℃,respectively,and NO conversion exceeded 95% in the temperature range of (153-362) ℃. |
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| Keywords: | catalytic chemistry rare earth-Cu/HZSM-5 catalyst NH3 selective catalytic reduction low temperature denitration |
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