Selective catalytic reduction of NO by NH3 on Fe-ZSM-5 elaborated from different methods

G. Delahay; A. Guzmán-Vargas; D. Valade; B. Coq

doi:10.1016/s0167-2991(04)80516-0

Selective catalytic reduction of NO by NH₃ on Fe-ZSM-5 elaborated from different methods

G. Delahay, A. Guzmán-Vargas, D. Valade, B. Coq

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Different methods of preparation have been used to introduce iron species in the zeolite ZSM-5. Special consideration has been devoted to the FeCl ₃ sublimation method. The various samples have been characterised by XRD and temperature programmed reduction. Two general types of species have been identified: iron oxide aggregates and iron cationic species. In the SCR of NO by NH₃, Fe-ZSM-5 prepared from sublimation of FeCl₃ displays the highest activity which is assumed to be related to the formation of iron-oxo complexes. The formation of these species is enhanced by a rapid washing of the preparation after the sublimation of FeCl₃ following by a calcination with 5-10%O₂ atmosphere. The SCR activity has been correlated with the activity in oxidising NO to NO₂.

Original language	English
Pages (from-to)	2501-2508
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	154 C
DOIs	https://doi.org/10.1016/s0167-2991(04)80516-0
State	Published - 2004
Externally published	Yes

Keywords

Iron
NH
NO
SCR
ZSM-5
Zeolite

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10.1016/s0167-2991(04)80516-0

Cite this

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title = "Selective catalytic reduction of NO by NH3 on Fe-ZSM-5 elaborated from different methods",

abstract = "Different methods of preparation have been used to introduce iron species in the zeolite ZSM-5. Special consideration has been devoted to the FeCl 3 sublimation method. The various samples have been characterised by XRD and temperature programmed reduction. Two general types of species have been identified: iron oxide aggregates and iron cationic species. In the SCR of NO by NH3, Fe-ZSM-5 prepared from sublimation of FeCl3 displays the highest activity which is assumed to be related to the formation of iron-oxo complexes. The formation of these species is enhanced by a rapid washing of the preparation after the sublimation of FeCl3 following by a calcination with 5-10%O2 atmosphere. The SCR activity has been correlated with the activity in oxidising NO to NO2.",

keywords = "Iron, NH, NO, SCR, ZSM-5, Zeolite",

author = "G. Delahay and A. Guzm{\'a}n-Vargas and D. Valade and B. Coq",

year = "2004",

doi = "10.1016/s0167-2991(04)80516-0",

language = "Ingl{\'e}s",

volume = "154 C",

pages = "2501--2508",

journal = "Studies in Surface Science and Catalysis",

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publisher = "Elsevier BV",

}

TY - JOUR

T1 - Selective catalytic reduction of NO by NH3 on Fe-ZSM-5 elaborated from different methods

AU - Delahay, G.

AU - Guzmán-Vargas, A.

AU - Valade, D.

AU - Coq, B.

PY - 2004

Y1 - 2004

N2 - Different methods of preparation have been used to introduce iron species in the zeolite ZSM-5. Special consideration has been devoted to the FeCl 3 sublimation method. The various samples have been characterised by XRD and temperature programmed reduction. Two general types of species have been identified: iron oxide aggregates and iron cationic species. In the SCR of NO by NH3, Fe-ZSM-5 prepared from sublimation of FeCl3 displays the highest activity which is assumed to be related to the formation of iron-oxo complexes. The formation of these species is enhanced by a rapid washing of the preparation after the sublimation of FeCl3 following by a calcination with 5-10%O2 atmosphere. The SCR activity has been correlated with the activity in oxidising NO to NO2.

AB - Different methods of preparation have been used to introduce iron species in the zeolite ZSM-5. Special consideration has been devoted to the FeCl 3 sublimation method. The various samples have been characterised by XRD and temperature programmed reduction. Two general types of species have been identified: iron oxide aggregates and iron cationic species. In the SCR of NO by NH3, Fe-ZSM-5 prepared from sublimation of FeCl3 displays the highest activity which is assumed to be related to the formation of iron-oxo complexes. The formation of these species is enhanced by a rapid washing of the preparation after the sublimation of FeCl3 following by a calcination with 5-10%O2 atmosphere. The SCR activity has been correlated with the activity in oxidising NO to NO2.

KW - Iron

KW - NH

KW - NO

KW - SCR

KW - ZSM-5

KW - Zeolite

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U2 - 10.1016/s0167-2991(04)80516-0

DO - 10.1016/s0167-2991(04)80516-0

M3 - Artículo

AN - SCOPUS:11844270465

SN - 0167-2991

VL - 154 C

SP - 2501

EP - 2508

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

ER -

Selective catalytic reduction of NO by NH₃ on Fe-ZSM-5 elaborated from different methods

Abstract

Keywords

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