Low cost catalytic sorbents for NOx reduction. 3. NO reduction tests using NH3 as reducing agent
Chars and activated chars obtained from a low-rank coal and doped with vanadium compounds (V2O5 and NH4VO3) and petroleum coke ash, PCA, (Main metal components: V, Fe and Ni) have been tested as catalytic sorbents for NO reduction. The reduction tests have been carried out in the presence of oxygen...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2004 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/344336 |
| Acceso en línea: | http://hdl.handle.net/10261/344336 |
| Access Level: | acceso abierto |
| Palabra clave: | Selective catalytic reduction of NOx Carbon-supported vanadium catalysts Petroleum coke ash for selective catalytic reduction catalysts |
| Sumario: | Chars and activated chars obtained from a low-rank coal and doped with vanadium compounds (V2O5 and NH4VO3) and petroleum coke ash, PCA, (Main metal components: V, Fe and Ni) have been tested as catalytic sorbents for NO reduction. The reduction tests have been carried out in the presence of oxygen with the addition of ammonia as reducing agent. The sorbents prepared have shown to be active for NO reduction at low-temperature (150 °C). Higher reduction efficiencies than with the unloaded not activated char have been achieved. The sorbents most efficient are those prepared with activated chars. Doping with vanadium compounds significantly upgrades the behaviour of the activated char. For the samples prepared with PCA, slightly lower NO conversions are observed but it has been shown that PCA is perspective for producing transition metals doped activated carbons. |
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