Patent ID: 8680000

Claim:
A process for regenerating a catalyst for the production of aromatic hydrocarbons or for reforming, comprising: a) combusting said catalyst in a combustion zone A comprising at least two combustion beds, a first combustion bed A 1 and a second combustion bed A 2 in series; b) oxychlorinating said catalyst in an oxychlorination zone B comprising at least one oxychlorination bed, said oxychlorination zone B being supplied with at least one chlorinating agent, at least with water or water precursors and at least with an oxygen-containing gas; c) calcining said catalyst in a calcining zone C comprising at least one calcining bed supplied with a gas comprising oxygen; in which: said catalyst comprises a support, chlorine and at least one noble metal and moves in series in the first combustion bed A 1 then in the second combustion bed A 2 , then in the oxychlorination zone B then in the calcining zone C; effluent gas from bed A 1 is sent to bed A 2 ; the gas supplying the calcining zone C moves freely to the oxychlorination zone B; a makeup of oxygen-containing gas is made at least to the inlet to the calcining zone; a portion of effluent gas from the oxychlorination zone is recycled via at least one scrubbing section D towards the inlet to combustion beds A 1 and A 2 ; the effluent gas from the oxychlorination zone is recycled, passing via a blower, without passing through said scrubbing section D, at least in part directly to the combustion bed A 2 and at least in part to the inlet to the oxychlorination zone B; a portion of effluent gas from combustion bed A 2 is recycled via at least said scrubbing section D to the inlet to beds A 1 and A 2 .