Hydrodesulfurization of light gas oil - kinetic determination in a batch reactor [Hidrodesulfurizacija lakog gasnog ulja - ispitivanje kinetike HDS u šaržnom reaktoru]

The performed investigations were directed toward the analysis of the performance and activity of the fresh and regenerated Cyanamid HDS 20C catalyst in a laboratory batch reactor (2 dm3) for the HDS of the diesel fraction (light gas oil, LGO). Testing of the regenerated catalyst was performed with light gas oil (LGO) of different characteristics. The determined values of the reaction rate constant were compared to some published data in the literature for the HDS of specific sulfur compounds as well as the values of the activation energy. The rates of deactivation of the fresh and regenerated catalyst actually existed compared to some other results recently published in the literature. However, such an observed differences were not sufficient to derive a relation which could be used for the determination of the rate of catalyst deactivation

Carbon monoxide oxidation on mixed spinels CuxCo3-xO4 (0 ≫ × ≫ 1) in the presence of sulphur compounds

The influence of the copper content in CuxCo3-xO4 (0 ≫ × ≫ 1) mixed oxides on carbon monoxide oxidation in the presence of SO2 was investigated. The average oxidation rate was found to increase very slowly with increasing x, whereas the resistance to SO2 poisoning increases substantially at values of x higher than 0.2