Role of α-Sites in the Selective Catalytic Reduction of NOx with Ammonia over Fe–ZSM-5 Catalysts Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2012, Volume: 53, Number: 6, Pages: 747-752 Pages count : 6 DOI: 10.1134/S0023158412050060 | ||||
| Tags | Zeolite; Selective Catalytic Reduction; Ammonia Oxidation; Site Concentration; Selective Catalytic Reduction Reaction | ||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | The Ministry of Education and Science of the Russian Federation | 02.740.11.0147 |
| 2 | Haldor Topsoe A/S |
Abstract:
The catalytic properties of Fe–ZSM-5 zeolites with different iron contents have been investigated in the selective catalytic reduction (SCR) of NOx with ammonia. The observed catalytic properties the zeolites are correlated with the concentration of the ironcontaining sites that are stabilized in the zeolite and effect N2O decomposition (αsites). The catalysts activated at a high temperature to increase the α-site concentration (by a factor of 5–10) are more active in NOx SCR with ammonia than the unactivated samples. However, the difference between the activities of the activated and unactivated catalysts is well below the difference between the αsite concentrations in these catalysts. The nonlinear relationship between these parameters is evidence that the αsites in Fe–ZSM-5 is not the only factor determining the activity of Fe–ZSM-5 in NOx SCR with ammonia. The activated catalysts show a low activity in nonselective ammonia oxidation and, accordingly, a high selectivity in the target process at high temperatures.
Cite:
Doronkin D.E.
, Piryutko L.V.
, Starokon E.V.
, Panov G.I.
, Stakheev A.Y.
Role of α-Sites in the Selective Catalytic Reduction of NOx with Ammonia over Fe–ZSM-5 Catalysts
Kinetics and Catalysis. 2012. V.53. N6. P.747-752. DOI: 10.1134/S0023158412050060 WOS Scopus РИНЦ ANCAN OpenAlex
Role of α-Sites in the Selective Catalytic Reduction of NOx with Ammonia over Fe–ZSM-5 Catalysts
Kinetics and Catalysis. 2012. V.53. N6. P.747-752. DOI: 10.1134/S0023158412050060 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Доронкин Д.Е.
, Пирютко Л.В.
, Староконь Е.В.
, Панов Г.И.
, Стахеев А.Ю.
Роль α-центров в реакции селективного каталитического восстановления NOx аммиаком на катализаторах Fe–ZSM-5
Кинетика и катализ. 2012. Т.53. №6. С.796-802. РИНЦ
Роль α-центров в реакции селективного каталитического восстановления NOx аммиаком на катализаторах Fe–ZSM-5
Кинетика и катализ. 2012. Т.53. №6. С.796-802. РИНЦ
Dates:
| Submitted: | Jan 25, 2012 |
| Published print: | Nov 1, 2012 |
| Published online: | Nov 25, 2012 |
Identifiers:
| Web of science: | WOS:000314455000012 |
| Scopus: | 2-s2.0-84870489424 |
| Elibrary: | 20495228 |
| Chemical Abstracts: | 2012:1724925 |
| Chemical Abstracts (print): | 158:280742 |
| OpenAlex: | W2077819992 |