Deep hydrodesulfurization of 4,6-dimethydibenzothiophene over CoMoS/TiO2 catalysts: Impact of the TiO2 treatment

Mesostructured titania as support for the CoMoS active phase in deep hydrodesulfurization (HDS) of 4,6-dimethydibenzothiophene (4,6-DMDBT) leads to an increase intrinsic HDS activity and a higher selectivity direct desulfurization (DDS) reaction contrast with conventional CoMoS/alumina catalyst. The temperature treatment mesostructured TiO2 support, modifies catalyst’s transformation 4,6-DMDBT. total activities were obtained after at 380 °C corresponding specific surface area material semi-crystalline anatase framework. Beyond 550 °C, decreases strongly complete crystallization mesopores walls into structure. Moreover, under which is treated prior its impregnation has no impact on routes sulfur compound.