Selective catalytic reduction of NOx with NH3 using ZSM5 with low content of copper
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C.
2016
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| _version_ | 1876464436836827136 |
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| author | L. Sandoval Rangel |
| author_facet | L. Sandoval Rangel |
| contents | Selective catalytic reduction of NOx with NH3 using ZSM5 with low content of copper L. Sandoval Rangel C.J. Lucio-Ortiz J. Rivera de la Rosa M.J. Castaldi Física, Astronomía y Matemáticas ZSM NOx Ammonia Selective catalytic reduction A comprehensive experimental and characterization study of selective catalytic reduction of NOx with NH3 was carried out on Cu-ZSM5 catalysts, previously prepared by the aqueous ion exchange method with a copper loading of 0.2, 1 and 2 %. Results showed that even with Cu contents as low as 2 % over zeolite, NOx conversions higher than 92 % are obtained at 600 ºC. The copper catalysts were characterized using FT-IR, XRD, UV-Visible and with studies such as SEM, STEM and HRTEM, where the presence of CuO cores were shown to enhance the de-NOx activity, due to their higher thermal stability compared with the other copper species found. The predominance of dispersed 4-5 nm particles over the zeolite was identified, which accounts for the high NOx conversion results shown in SCR process. 2016 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94245632001 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.1 Vol.29 |
| format | Artículo científico |
| id | redalyc_94245632001 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. |
| spellingShingle | Selective catalytic reduction of NOx with NH3 using ZSM5 with low content of copper L. Sandoval Rangel Física, Astronomía y Matemáticas ZSM NOx Ammonia Selective catalytic reduction Selective catalytic reduction of NOx with NH3 using ZSM5 with low content of copper L. Sandoval Rangel C.J. Lucio-Ortiz J. Rivera de la Rosa M.J. Castaldi Física, Astronomía y Matemáticas ZSM NOx Ammonia Selective catalytic reduction A comprehensive experimental and characterization study of selective catalytic reduction of NOx with NH3 was carried out on Cu-ZSM5 catalysts, previously prepared by the aqueous ion exchange method with a copper loading of 0.2, 1 and 2 %. Results showed that even with Cu contents as low as 2 % over zeolite, NOx conversions higher than 92 % are obtained at 600 ºC. The copper catalysts were characterized using FT-IR, XRD, UV-Visible and with studies such as SEM, STEM and HRTEM, where the presence of CuO cores were shown to enhance the de-NOx activity, due to their higher thermal stability compared with the other copper species found. The predominance of dispersed 4-5 nm particles over the zeolite was identified, which accounts for the high NOx conversion results shown in SCR process. 2016 artículo científico 1665-3521 https://www.redalyc.org/articulo.oa?id=94245632001 en http://www.redalyc.org/revista.oa?id=942 Superficies y vacío application/pdf Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales A.C. Superficies y vacío (México) Num.1 Vol.29 |
| title | Selective catalytic reduction of NOx with NH3 using ZSM5 with low content of copper |
| topic | Física, Astronomía y Matemáticas ZSM NOx Ammonia Selective catalytic reduction |
| url | https://www.redalyc.org/articulo.oa?id=94245632001 |