Decationization of BEA zeolite by conventional and microwave promoted ion exchange procedures |
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| Authors: | Jo?o P. Marques Gon?alo Caeiro Isabelle Gener José M. Lopes and Fernando Ram?a Ribeiro |
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| Affiliation: | (1) I: Centro de Engenharia Biológica e Química, Instituto Superior Técnico; II: Laboratoire de Catalyse en Chimie Organique;, I: Av. Rovisco Pais, 1049-001 Lisboa, Portugal; II: 40 Avenue du Recteur Pineau, 86022 Poitiers, France;;(2) I: Centro de Engenharia Biológica e Química, Instituto Superior Técnico; II: Laboratoire de Catalyse en Chimie Organique;, I: Av. Rovisco Pais, 1049-001 Lisboa, Portugal; II: 40 Avenue du Recteur Pineau, 86022 Poitiers, France;;(3) Laboratoire de Catalyse en Chimie Organique, 40 Avenue du Recteur Pineau, 86022 Poitiers, France;(4) Centro de Engenharia Biológica e Química, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;(5) Centro de Engenharia Biológica e Química, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal |
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| Abstract: | Summary A commercial NaBEA sample was exchanged, at different levels, with NH4+cations through conventional and microwave promoted methods. The dependence of the acidic and catalytic properties of the HNaBEA samples with the exchange degree was analyzed. It was observed that the catalytic activity of the exchanged samples for methylcyclohexane cracking depends on the exchange method, whereas surface acidity, determined by pyridine adsorption followed by IR spectroscopy and temperature programmed desorption of NH3, do not. |
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| Keywords: | ion exchange BEA zeolite microwave treatment methylcyclohexane catalytic cracking |
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