Abstract
The hydrodesulfurization of benzene by the V2O3-MoO2 catalyst has been studied at atmospheric pressure.Mainly, the optimum composition of catalysts and the reaction rates were investigated.
The activity per unit weight of catalyst was maximum at V2O3/MoO2=3 in molar ratio, but the maximum activity per unit surface area of catalyst was revealed at V2O3/MoO2=6.
This catalyst was poisoned with olefins and basic compounds such as pyridine.Poisoning with olefins could be removed simply by heating in hydrogen current, but the catalysts poisoned with pyridine were regenerated only by calcining in air and reduction with hydrogen
The rate of hydrodesulfulization was the 1st order with respect to thiophen concentration and the 1/2th order for hydrogen.From these results, the reaction mechanism was proposed in which the process of reaction between adsorbed hydrogen atom and sulfur compound on surface was the rate determining step.Kimio, Tarama;Shiichiro, Teranishi;Kentaro, Hattori;Mitsuro, Higashi
