Process for treating a hydrocarbon feed, comprising a counter-current fixed bed hydrotreatment step
AssigneeInstitut Francais du Petrole
InventorsDaniel Vuillemot, Laurence Carpot, Thierry Chapus, Philippe Rocher, Frédéric Morel
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Abstract
A process is described that can limit pressure drops during a catalytic hydrotreatment process carried out in a fixed bed reactor. The liquid feed and gaseous reactant are injected into the reactor either side of the bed and flow as a counter-current. Pressure drops are limited by homogeneously mixing solid catalytic and/or inert particles of different diameters in the bed.
Claims24
In a process for treating a hydrocarbon feed comprising sulphur-containing compounds, nitrogen-containing compounds and aromatic compounds, comprising at least one hydrotreatment step in which at least a liquid fraction of said hydrocarbon feed and hydrogen are caused to flow countercurrently in a vessel through at least one fixed bed of solid particles, the improvement wherein said fixed bed or beds of solid particles comprises a substantially homogeneous mixture of solid particles S1 with a mean diameter of about 0.5 to 5 mm and of solid particles S2 with a mean diameter that is higher than the mean diameter of solid particles S1, and in that at least a portion of at least one of said particles S1 or S2 is catalytic and comprises a mineral support.
Dependencies are inferred from the claim text.