Abstract

CoMo-supported micro/mesoporous catalysts (CoMo/HZSM5(x)-HMS) were synthesized by varying the weight percent of zeolite (10, 20, 30 and 40 wt%). Catalytic functionalities were investigated for hydrodesulphurization reaction of dibenzothiophene over a wide temperature range of 250–400 °C. Characterization methods as XRD, XRF, FT-IR, UV–Vis DRS, NH3-TPD, H2-chemisorption, nitrogen adsorption–desorption and TGA confirmed the obtained results from these catalysts. A significant enhancement of the catalytic activity was observed for the catalysts supported on CoMo/HZSM5(20)-HMS at T = 350 °C (>97%).

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