Reaction Kinetics and Catalysis Letters, Vol.83, No.2, 237-244, 2004
Effect of support on the synergy in HDS of thiophene and HDN of pyridine over Mo sulfide catalysts promoted by Rh
The effect of support (SiO2-Al2O3, Al2O3, MgO) of the Rh-Mo(S) sulfide catalysts on the synergy in hydrodesulfurization (HDS) of thiophene and hydrodenitrogenation (HDN) of pyridine was studied. The synergy in HDS was between 7-10 regardless of the kind of support used. The synergy in HDN varied from none over the MgO supported sample to about 3 over SiO2-Al2O3 supported catalyst, in accord with the positive effect of increasing support acidities.