Bifunctional catalysts for selective opening of decalin: thiotolerance and regeneration

SILVANA A. D'IPPOLITO; SANTIAGO M. ROSAS; CATHERINE ESPECEL; FLORENCE EPRON; MARÍA A. VICERICH; VIVIANA M. BENITEZ; CARLOS L. PIECK

Santa Fe

Workshop; French Argentinean Workshop on Heterogeneous Catalysis; 2023

Instituto de Investigaciones en Catálisis y Petroquímica - Institut de Chimie des Milieux et Matériaux de Poitiers

The selective ring opening (SRO) is a viable technology to enhance the light cycle oil (LCO) fraction and thus contribute to meet the growing demand for diesel fuel. LCO products can be hydrogenated and then opened by SRO to obtain linear or mono-branched paraffins leading to an improved cetane index for diesel fuel application. Moreover, the sulphur content of the LCO fractions is about 0.2 wt% to 2 wt% and the industrial fractions must be hydrotreated in a first stage to decrease the S content between 6 ppm to 16 ppm.In this work, the activity and S-tolerance of monometallic and bimetallic catalysts supported on SiO2-Al2O3 and zeolite HY are studied in the hydroconversion of decalin (model molecule of hydrogenated aromatics of the LCO fraction), as well as the regeneration of the most promising catalysts.