… Thanks to a combination of the high activity of ruthenium and unique properties of a new
support, magnesium fluoride, a system highly active in the hydrodesulfurization reaction
was obtained. … From the above data the conclusion can be made that Ru/ MgF2 catalysts
are very selective systems in the HDS process, much less hydrogenation occurs
simultaneously with hydrodesulfurization (Table 1) in comparison with Ru/Al2O3. This,
together with very high HDS activity is a clear advantage of Ru/ MgF2 catalysts compared …

Combination of iridium sulphide catalytic phase and novel magnesium oxo-fluoride supports
(MgF2–MgO) allow preparation of new highly active catalysts for the hydrodesulfurization
reaction. A series of supports containing MgO in the amount of 10–90mol% have been
prepared by the sol-gel method. Their surface areas and pore size distributions have been
investigated by BET and BJH methods, respectively. The catalysts containing 0.5 wt.%
iridium have been obtained by impregnation of the supports with a solution of …