Brief description of the currents of cracking heavy hydrocarbons

摘要

P the invention relates to a process for catalytic treatment of heavy hydrocarbons. / p & & p & this process is characterizes in that it consists in placing the current of hydrocarbons, in a hydrotreatment zone, in the hydrotreatment conditions, with a catalyst comprising molybdenum and chromium, and optionally cobalt, in their elementary or that of their oxides and sulfides or mixtures, on a catalyst support a large pores of the type of the aluminas, having specific to the pore volume and the diameter of the pores, which thus lowers considerably the content of metals of the charge of hydrocarbons with the transformation of asphaltenes, of the compounds of the nitrogen and of the compounds of sulphur. / p & & p & application to the production of gasoline and distillates light with good yields. / p