Desulfurizing, denitrogenating and/or dearomatizing a hydrocarbon feed by adsorption comprises two-stage regeneration of the adsorption column

摘要

Desulfurizing, denitrogenating and/or dearomatizing a hydrocarbon feed containing (di)benzothiophene-type sulfur compounds and/or indole- and/or carbazole-type nitrogen compounds and/or polycyclic aromatics by passing the feed through a column of adsorbent containing a complexing agent based on a pi-electron acceptor comprises regenerating the column by passing a desorbent or purge liquid through it and then passing a desorbent through it.