Rogelio Cuevas

TL;DR: In this paper, the role of titania in supported hydrodesulfurization catalysts is analyzed in order to construct a rational explanation for the different findings in Ti-containing HDS catalysts.

TL;DR: A series of Al 2 O 3 -ZrO 2 mixed oxides was prepared by the sol-gel method with variable amounts of ZrO2 2 between pure alumina and pure zirconia.

TL;DR: In this article, the influence of reaction parameters (reaction temperature, pressure and catalytic precursor) on the upgrading of heavy oil under low pressure and moderate temperature under slurry conditions is presented.

TL;DR: In this article, the influence of different amounts of boron ( x = 0.0, 0.2,0.8, 1.5 and 2.0 wt.-%B) to CoMo/Al 2 O 3 catalysts on the thiophene hydrodesulfurization catalytic activity and chemical state has been investigated by UV-vis diffuse reflectance spectroscopy, X-ray diffraction spectrograph, scanning electron microscopy, FT-IR of adsorbed nitric oxide, temperature-programmed reduction and acidity measurements.

TL;DR: In this article, the effect of the catalyst load in slurry hydrocracking of heavy Maya crude oil was investigated at mild conditions (390°C and 1400 H2 psi) and the results allowed to establish the transformation routes of different fractions under thermal or catalytic conditions.