| Mn／ZSM-5催化剂及其SCR催化性能研究 |
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| 引用本文： | 吕刚,吴虎,宋崇林,宾峰.Mn／ZSM-5催化剂及其SCR催化性能研究[J].工程热物理学报,2011(9):1597-1600. |
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| 作者姓名： | 吕刚 吴虎 宋崇林 宾峰 |
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| 作者单位： | 天津大学内燃机燃烧学国家重点实验室; |
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| 基金项目： | 国家自然科学基金(No.50506020;No.50706033); 教育部霍英东基金(No.114027); 天津市应用基础及前沿技术研究计划重点项目(No.08JCZDJC20000) |
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| 摘 要： | 采用液态离子交换法制备了不同含量的Mn／ZSM-5型分子筛催化剂，并考察了上述催化剂的物理化学特性及其在NH3-SCR反应中的催化性能。理化分析结果表明：所制备催化剂在Mn含量≤9．2％时具有高度的分散性，分子筛表面团聚的氧化锰颗粒粒径小于4nm；锰元素主要富集于分子筛的浅层及表面。催化性能研究结果表明：Mn含量达到1...
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| 关 键 词： | 选择性催化还原 ZSM-5分子筛催化剂 氮氧化物(NOx) 脱除效率 离子交换 |
Mn/ZSM-5 Catalysts and the Properties of Selective Catalytic Reduction |
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| LU Gang WU Hu SONG Chong-Lin BIN Feng.Mn/ZSM-5 Catalysts and the Properties of Selective Catalytic Reduction[J].Journal of Engineering Thermophysics,2011(9):1597-1600. |
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| Authors: | LU Gang WU Hu SONG Chong-Lin BIN Feng |
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| Affiliation: | LU Gang WU Hu SONG Chong-Lin BIN Feng (State Key Laboratory of Engines,Tianjin University,Tianjin 300072,China) |
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| Abstract: | Mn/ZSM-5 zeolite catalysts with different manganese content were prepared using liquid ion-exchange method.The effects of manganese loading ratios on physical-chemical characterization and selective catalytic reduction of NO_x with ammonia were investigated.The physical-chemical analysis showed that manganese species were finely dispersed on the ZSM-5 support with manganese content<9.2%,corresponding to the manganese oxide particle size<4 nm.Manganese mainly enriches in the surface of the ZSM-5 support.The ... |
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| Keywords: | selective catalytic reduction(SCR) ZSM-5 zeolite catalysts nitrogen oxides(NO_x) reduction efficiency ion-exchange method |
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