Study of Bimetallic Catalyst Pd-Ni for Styrene Hydrogenation

C. BETTI; J. BADANO; M. J. MACCARRONE; C. LEDERHOS; N. CARRARA; C. VERA; M. QUIROGA

Kazan

Congreso; XII European Congress on Catalysis; 2015

Gasoline and BTX (Benzene, toluene and xylenes) streams coming from the cracking of petroleum must be purified in order to minimize the concentration of diolefins, responsible of gums formations. The widespread method of purification is the selective hydrogenation of vinyllic bond, keeping the aromatic rings unaltered. These streams can have up to 1000 ppm of sulfur compounds, among them thiophene is one of the most common ones, being these sulfur compounds the main cause of the loss of activity of metal catalysts in several refinery processes. The objective of this work is to evaluate the influence of the order of impregnation of Pd and Ni in bimetallic catalysts on the activity and sulfur resistance during styrene partial hydrogenation.