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One dimensional homogeneous and heterogeneous reactor models and nth-order and two-parallel reactions following first order kinetics were explored in order to compare their capabilities to predict the sulfur content in the liquid product coming from a trickle-bed bench-scale reactor, where hydrodesulfurization of vacuum gas oil took place. Experimental data of sulfur concentration obtained at T=340–380°C,...
In the present work we analyze the changes in hydrocracking, hydrodesulfurization, hydrodeasphaltenization, and hydrodesmetallization, during the hydrotreating of Maya crude, when 3.4wt.% of P 2 O 5 is incorporated by two different routes to a NiMo/Al 2 O 3 catalyst. The catalysts were characterized by nitrogen physisorption, XRD, HRTEM, SEM, and CO adsorption analyzed...
Heavy Maya crude has been hydrotreated with NiMo/alumina-titania catalysts in which titania was incorporated by two different methods. Titania added to boehmite followed by calcination in order to promote formation of Ti–O–Al bonds, and Ti added to alumina in order to promote the formation of TiO 2 structures on the surface. The reaction results indicate that hydrodesulfurization (HDS), hydrodemetallization...
An experimental study was conducted in a fixed-bed pilot reactor in order to evaluate the effect of catalytic hydrotreating on diesel quality by using feedstocks prepared with different amounts of straight run gas oil, kerosene and jet fuel streams. Experiments were carried out at constant reaction pressure and hydrogen-to-oil ratio of 5.3MPa and 356.2mlml −1 , respectively. The effect of...
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