SciELO - Scientific Electronic Library Online

 
vol.11 número3Sistema Ni-mordenita: influencia de la relación molar SiO2/Al2O3 en la actividad catalítica para la reducción de noAuto-ensamble de cúmulos y nanoparticulas de Cu, Ag y Au de tamaños selectos en matrices de mordenita índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Revista mexicana de ingeniería química

versão impressa ISSN 1665-2738

Resumo

GARCIA M., C. et al. Evaluation of mono and bimetallic catalysts supported on Al2O3-TiO2 in the reaction of hidrodechlorination of 1,2-dichloroethane. Rev. Mex. Ing. Quím [online]. 2012, vol.11, n.3, pp.463-468. ISSN 1665-2738.

The effect of Pd, Pi, Rh and the bimetallic PdPt (Pd/Pt=4) as active phases for the gas-phase hydrodechlorination of 1,2 dichloroethane was studied. An Al2O3-TiO2 mixed oxide with atomic ratio Al/Ti=25 (AT) and Al2O3 (A) were used as carriers. These materials were prepared by the sol-gel method and characterized by nitrogen physisorption to obtain their textural properties (BET Area, pore volume & average pore diameter). Active phases were impregnated with a metallic load of 1 wt.-%. Reactions were carried cent in a fixed-bed differential reactor at 250 °C and atmotpheric pressure. Titania-modified support showed a BET área of 422 m2/g slightly higher than A (374 m2/g). Reaction rate for tested supported AT catalysts resulted in order of activity as follows Pt<Rh<Pd<PdPt and in terms of selectivity towards non-chlorinated compounds the order was Pd<Pt<PdPt<Rh. The PdPt/AT catalyst presented a catalytic activity 15% higher than PdPt/A.

Palavras-chave : hydrodechlorination; rhodium; Pd-Pt; alumina-titania; 1,2-dichloroethane.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons