EFFECT OF SINTERING ON THE CATALYTIC FUNCTIONALITIES OF MOS2 AL2O3 CATALYSTS

Effect of sintering on physico-chemical and catalytic properties of Mo , Co-Mo, Ni-Mo supported on gamma-Al2O3 is reported. Such effects on h ydrodesulfurization (HDS), hydrogenation (HYD) and hydrodeoxygenation (HDO) are investigated as a function of sintering temperature. The res ults indicated that HDS and HYD have different optimum calcination tem peratures and these functionalities originate from different sites. Th e results are discussed in the light of molybdenum sulfide dispersion, promotional effects and phase transformations of active component, pr omoters and support.