Efecto del método de preparación sobre la actividad catalítica de catalizadores de Ni/ γ-Al2O3
The performance of catalysts has been shown to be strongly dependent on their methods of preparation. A study to examine the relationship between catalyst preparation procedures and the structure, dispersion, activity, and selectivity of the finished catalyst is reported. 10 wt.% Ni/γ-Al2O3 catalys...
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| Format: | Online |
| Sprache: | eng |
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Universidad de Costa Rica
2017
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| Online Zugang: | https://revistas.ucr.ac.cr/index.php/ingenieria/article/view/23189 |
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| Zusammenfassung: | The performance of catalysts has been shown to be strongly dependent on their methods of preparation. A study to examine the relationship between catalyst preparation procedures and the structure, dispersion, activity, and selectivity of the finished catalyst is reported. 10 wt.% Ni/γ-Al2O3 catalysts were prepared by incipient wetness impregnation and by wet impregnation. The catalysts were used in the conversion of glycerol in gas phase and atmospheric pressure. The selectivity and activity of the catalysts were affected by the preparation method employed. The catalysts were characterized by TGA, TPR, N2-physorption, H2-chemisorption, XRD, TEM, FTIR and TPO. The Ni particle size and dispersion of the catalysts affected the selectivity to hydrogenolysis and dehydration routes, and the formation of carbon deposits was also affected. |
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