Síntesis y caracterización de las zeolitas ZSM-5 y BETA con galio

Autores/as

  • Juan David Henao-López Universidad de Antioquia
  • Luis Alberto Rios Universidad de Antioquia
  • Consuelo Montés de Correa Universidad de Antioquia.

DOI:

https://doi.org/10.17533/udea.redin.325959

Palabras clave:

Ga, BETA, ZSM-5, óxidos de nitrógeno, re­ducción catalítica selectiva.

Resumen

Se sintetizaron varias zeolitas con galio. Este último se introdujo por impreg­nación húmeda incipiente (Ga/ZSM-5 y Ga/BETA) y por incorporación desde el gel de síntesis (Ga-ZSM-5 y Ga-BETA). Los materiales resultantes se ca­racterizaron por XRD, XPS y 27 Al, 29Si, 71Ga MAS-NMR. Las zeolitas im­pregnadas experimentaron desaluminación después de la calcinación a 500 ºC durante 4 h. La adición de galio en el gel de síntesis permitió incorporarlo en la estructura de la zeolita ZSM-5 pero no en la BETA. Al comparar el compor­tamiento de las zeolitas ZSM-5 y BETA con galio en la reducción catalítica selectiva (RCS) de Nüx con metano, se encontró que la zeolita Ga/BETA es más activa y selectiva que Ga-ZSM-5.
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Publicado

2001-11-09

Cómo citar

Henao-López, J. D., Rios, L. A., & Montés de Correa, C. (2001). Síntesis y caracterización de las zeolitas ZSM-5 y BETA con galio. Revista Facultad De Ingeniería Universidad De Antioquia, (22), 150–159. https://doi.org/10.17533/udea.redin.325959

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