NITROUS OXIDE CATALYTIC DECOMPOSITION OVER FE-ZSM-5 CATALYSTS: EFFECT OF ALUMINUM AND IRON CONTENT

被引：0
作者：
Cardona, E. [1 ]
Rios, L. [1 ]
Pena, J. [1 ]
机构：
[1] Univ Antioquia, Dept Ingn Quim, Grp Proc Fisicoquim Aplicados, Medellin, Colombia
来源：
INGENIERIA QUIMICA | 2010年 / 38期
关键词：
Fe-ZSM-5; N2O; textural properties; catalytic decomposition; N2O DECOMPOSITION; REDUCTION; OXIDATION; SITES;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Fe-ZSM-5 is a catalyst that due to its structural properties, shape and size selectivity and electronic environment, promotes the formation of metallic complexes that exhibit unusual catalytic properties, as are the iron complexes stabilized in a ZSM-5 matrix. The steam-activated Fe-ZSM-5 is an appropriated catalyst for decomposition of N2O, due to the formation of active species, particular to this system, which are influenced by the conditions of synthesis, activation and reaction. Influence of iron content over catalyst conversion, between 400 and 600 degrees C, was determined in this study, as well as the effect of not having Al. The catalyst FeZ-27/152 exhibited the highest conversion (96.47%) at 550 degrees C, and it was also noticed a clear influence of iron content over textural properties and catalytic conversions, achieving 100% N2O decomposition at temperatures close to 600 degrees C.
引用
收藏
页码：38 / 45
页数：8
相关论文
共 22 条
  • [1] ARANGO YC, 2002, REV COLOMBIANA FISIC, V34, P2
  • [2] Catalytic activity of Fe ions in iron-based crystalline and amorphous systems: role of dispersion, coordinative unsaturation and Al content
    Berlier, G
    Ricchiardi, G
    Bordiga, S
    Zecchina, A
    [J]. JOURNAL OF CATALYSIS, 2005, 229 (01) : 127 - 135
  • [3] Temperature-dependent N2O decomposition over Fe-ZSM-5:: Identification of sites with different activity
    Berrier, E.
    Ovsitser, O.
    Kondratenko, E. V.
    Schwidder, M.
    Gruenert, W.
    Brueckner, A.
    [J]. JOURNAL OF CATALYSIS, 2007, 249 (01) : 67 - 78
  • [4] Selective catalytic reduction of nitrous oxide by ammonia on iron zeolite beta catalysts in an oxygen rich atmosphere: Effect of iron contents
    Delahay, G
    Mauvezin, M
    Coq, B
    Kieger, S
    [J]. JOURNAL OF CATALYSIS, 2001, 202 (01) : 156 - 162
  • [5] Evolution of iron states and formation of α-sites upon activation of FeZSM-5 zeolites
    Dubkov, KA
    Ovanesyan, NS
    Shteinman, AA
    Starokon, EV
    Panov, GI
    [J]. JOURNAL OF CATALYSIS, 2002, 207 (02) : 341 - 352
  • [6] Active sites in Fe/MFI catalysts for NOx reduction and oscillating N2O decomposition
    El-Malki, EM
    van Santen, RA
    Sachtler, WMH
    [J]. JOURNAL OF CATALYSIS, 2000, 196 (02) : 212 - 223
  • [7] Kapteijn F, 1996, APPL CATAL B-ENVIRON, V9, P25
  • [8] LABHSETWAR MN, 2008, CATAL TODAY, V41, P205
  • [9] Alkaline leaching for synthesis of improved Fe-ZSM5 catalysts
    Melián-Cabrera, I
    Espinosa, S
    Mentruit, C
    Kapteijn, F
    Moulijn, JA
    [J]. CATALYSIS COMMUNICATIONS, 2006, 7 (02) : 100 - 103
  • [10] Minsker LK, 2003, J CATAL, V219, P273, DOI [10.1016/S0021-9517(03)00222-7, DOI 10.1016/S0021-9517(03)00222-7]
123