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vol.45 issue2COMPOSICION DEL ACEITE ESENCIAL Y ACTIVIDAD ANTIMICROBIANA DE EUPATORIUM PATENSPOLYMERIZATION OF STYRENE BY DIPHENYLZINC-ADDITIVE SYSTEMS. PART X. HOMO- AND COPOLYMERIZATION OF STYRENE USING Ph2Zn - METALLOCENE - MAO SYSTEMS author indexsubject indexarticles search
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Boletín de la Sociedad Chilena de Química

Print version ISSN 0366-1644

Abstract

PECCHI, Gina; REYES, Patricio; FIGUEROA, Alejandra  and  FIERRO, J.L.G.. CATALYTIC COMBUSTION OF TOLUENE ON Pd-Cu/SiO2 CATALYSTS. Bol. Soc. Chil. Quím. [online]. 2000, vol.45, n.2, pp.213-218. ISSN 0366-1644.  http://dx.doi.org/10.4067/S0366-16442000000200007.

Catalytic combustion of toluene on silica supported Pd, Pd-Cu and Cu catalysts has been investigated. The solids were prepared by the impregnation method and they were characterized by evaluation of surface area, metal dispersion and surface composition. The reaction was studied under stoichiometric conditions in the presence and absence of thiophene as poison. It was found that the presence of copper reduces the activity due to a copper-palladium interaction, which modifies the nature of the active site. The monometallic Pd and the bimetallic Pd-Cu catalysts showed high resistance to the sulfur poisoning

Keywords : Palladium; copper; combustion; toluene; catalysis.

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