PROCESS FOR SEPARATING META-XYLENE FROM HYDROCARBON FEED BY LIQUID PHASE ADSORPTION USING TETRALINE AS DESORBANT

摘要

The invention concerns a process for separating meta-xylene from a hydrocarbon feed comprising isomers containing 8 carbon atoms, comprising: • a step for bringing said feed into contact with a faujasite type zeolite adsorbant, the percentage of water in the adsorbant being in the range 0 to 8% by weight and the adsorption temperature being from 25°C to 250°C; • a desorption step employing a solvent selected from tetraline and its alkylated derivatives; • a step for separating meta-xylene from the desorbant.