Drifts studies of acrylonitrile adsorption on pd/sdo2 and pdsd/sdo2

• GALO CÁRDENAS T ^[1] ; RICARDO OLIVA C ^[1]
  1. [1] Universidad de Concepción

     Universidad de Concepción

     Comuna de Concepción, Chile

     
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 49, Nº. 1, 2004, págs. 11-15
• Idioma: inglés
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• Resumen

  • The acrylonitrile adsorption over Pd/SiO2 and PdSn/SiO2 catalysts wasprepared by "Solvated Metal Atom Dispersion" (SMAD) and analyzed by DRIFTS FTIR are studied.

    The catalysts were used in pellets and treated with dry N2(g) flow inside a flask in contact with the acrylonitrile vapours for 6 h.

    A change in the adsorption capacity of acrylonitrile with the increase in Sn content in the catalysts by following the Cº N IR band was studied.

    The decrease in the acrylonitrile adsorption produced a decrease in the hydrogenation rates of acrylonitrile and an increase in the hydrogenation selectivity to obtain allylamine, mainly due to a greater interaction of Cº N with Sn.