Sulfur Resistance of Low-loaded Pt Catalysts

C. BETTI; J. BADANO; N. CARRARA; C. LEDERHOS; M. JULIANA MACCARRONE; L. PROFUMATI; C. VERA; A. MASTALIR; M. E. QUIROGA

Lyon

Congreso; XIth European Congress on Catalysis- EUROPACAT; 2013

In the petrochemical industry gasoline and BTX (Benzene, toluene and xylenes) streams coming from the cracking of petroleum cuts must be purified in order to minimize the concentration of olefins and diolefins. The widespread method of purification is the selective hydrogenation of vinyllic compounds, keeping the aromatic rings unaltered. The employed catalysts must have a great resistance to different sulfur compounds. The objective of this work is to extend this research to the reaction system of the bimetallic Pt-W/ã-alumina catalyst and the model feedstock of styrene contaminated with thiophene. The influence of the order of impregnation of bimetallic Pt?W catalysts on their activity and sulfur resistance during styrene semi-hydrogenation was studied.