Resumen de Catalytic activity of sulfur resistant catalysts on the isomerization of a mixture of pinenes poisoned with thiophene as crude sulfate turpentine model
Ruby Cid Araneda, Wolfgang F. Hölderich, Alberto Miranda, Dominique M. Roberge, Miguel Zárraga
The catalytic activity of Pd and Pd-M bimetallic catalysts (M = Cr, Cu, Pt, Ag) on different solid supports for isomerization in gas phase of a mixture of pinenes poisoned with 4000 pmm of sulfur as thiophene was studied. This mixture was used as a model of crude sulfate turpentine (CST), which is a cheap and valuable source of pinenes. The major product of this reaction is p-cymene, an important product in chemical industry. It was found that Pd-Pt/ SiO2-Al2O3 gives a selectivity of 65-70% and a conversion of 98%. Molecular sieves as catalyst support were also investigated but the activity was not as better as the SiO2 or SiO2-Al2O3 for the targeted reaction
