METHOD AND DEVICE FOR PRODUCING AROMATIC COMPOUNDS COMPRISING CATALYST REDUCTION

摘要

The invention concerns a method for producing aromatic compounds from a hydrocarbon cut using a catalyst which preferably circulates in mobile bed, said method comprising at least the following successive steps carried out at least in a zone: treating the cut in the presence of hydrogen and performing at least a dehydrogenation reaction of naphthenes; separating the gas effluent containing hydrogen, from the liquid product and from the catalyst; regenerating the catalyst, reducing the catalyst and re-introducing the catalyst in the treating step; recycling in the treating step part at least of the gas effluent containing hydrogen called recycling gas; method wherein the reduction step is carried out in the presence of the recycling gas introduced in an amount such that the amount of input pure hydrogen ranges between 1-10 kg/kg of the catalyst, the effluent derived from the reduction being then separated from the catalyst bed. The invention also concerns the associated device.