Process for treatment of metal containing petroleum fractions in the presence of solid particles, comprising a magnetohydrostatic separation step for these particles and recycling a part of them

摘要

process for the treatment of a hydrocarbon cut containing metal, comprising the steps as follows: (a) treating the cut of hydrocarbons in the presence of solid particles of average density (od) under at least partial removal of metals contained therein. deposition of metals on at least a portion of the solid particles.6) receives at least a portion of the solid particles from the step (. alpha.) the average population density is made (du2081), the solid particles are separated from the magnu00e9tohydrostatiquement stage (6) by introducing the particles to createa ferro fluid placed in a ch non uniform magnetic amp, creating a vertical magnetic field gradient.the intensity of which is adjusted so that the average bulk density (daf) ferrofluid allows the separation of solid particles of at least a portion of the average density (dd) less than the mean apparent density (daf) ferrofluid and at least one before mean (sd) of density than the apparent density and the average excess ferrofluid (daf)the average density (du2081) solid particles separated in step (b), 6), we get at least a portion of the solids density (sd), and e) recycle, at step (. alpha.) at least a portion of the solids density (dd).the solid particles are preferably particles of a catalyst and the treatment, for example, is a process.