The Effect of MoS2 Active Site Dispersion on Suppression of Polycondensation Reactions during Heavy Oil Hydroconversion

In this work, the composition, structural and morphological features, particle size of active phase catalyst (MoS2), synthesized in-situ during heavy oil hydroconversion performed in continuous flow reactor on lab-scale pilot unit at T = 450 °C, P 6.0–9.0 MPa, V 1.0 h?1, H2/feed 1000 nL/L, concentration C (Mo) 0.01–0.08%wt have been studied. It has shown that MoS2 formed is represented by nanosized particles stabilized polycondensation products as a result strong adsorption aggregation with components reaction medium. The influence characteristics nanoparticles feed conversion, yield gaseous liquid products, quality distillate fractions, well established an increase site dispersion, both due to decreased plate length lower stacking numbers cluster, enhances effectivity, particularly, suppressing reactions.