Effect of preparation method on iron-containing AlPO-5 for selective catalytic reduction of N2O with methane in the presence of steam

被引:17
作者
Cheng, Dang-guo [1 ]
Zhao, Xiaoxu [1 ]
Chen, Fengqiu [1 ]
Zhan, Xiaoli [1 ]
机构
[1] Zhejiang Univ, Dept Chem & Biochem Engn, Hangzhou 310027, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
SCR; N2O; Methane; AlPO-5; Iron species; NITROUS-OXIDE; ACTIVE-SITES; DECOMPOSITION; FE-ZSM-5; OXIDATION; CH4; ZEOLITES; REMOVAL; GASES;
D O I
10.1016/j.catcom.2009.03.017
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Selective catalytic reduction (SCR) of N2O with methane in the presence of steam has been investigated over iron-containing AlPO-5 that is prepared by isomorphous substitution and impregnation, respectively. Characterization results indicate that AlPO-5 zeolite has good capacity to resist steam. FeAlPO-5 has better low-temperature activity and is more stable than Fe/AlPO-5 due to its high population of isolated Fe(III) and oligonuclear Fe(III)(x)O-y. The deactivation of Fe/AlPO-5 is ascribed to agglomeration of Fe2O3 particles under steam condition. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1450 / 1453
页数:4
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