Hydro-refining residue oils - using coarse hydrodesulphurisation catalyst particles and fine demetallisation catalyst particles

摘要

A residue oil, contg. S and metallic catalyst poisons, is treated with H2 at high press. and high temp. by leading the oil and H2 upwards through a bed of catalyst particles of 1/64-3/8 inch. particle size; a catalyst with particle size of 50-200 mesh (U.S.S. scale) is mixed with the upward-flowing oil; the finely-divided catalyst absorbs the metallic catalyst poisons.