Patent ID: 6784132
Filing Date: 2004-08-31
Classification: B01J

Abstract:
A process for the regeneration of a hydrocarbon conversion catalyst in the presence of a halogen-containing material, the process comprising:(a) contacting a regeneration inlet stream comprising a first component selected from the group consisting of oxygen, hydrogen, nitrogen, and a C1-C5 hydrocarbon with a catalyst in the presence of a halogen-containing material at regeneration conditions to at least partially regenerate said catalyst and produce a regeneration effluent stream comprising said material and said first component; (b) contacting at least a portion of said regeneration effluent stream with an adsorbent, adsorbing said material on said adsorbent at adsorption conditions, and recovering an adsorption effluent stream comprising said first component and having a reduced concentration of said material relative to said at least a portion of said regeneration effluent stream; (c) contacting a desorption inlet stream comprising a second component selected from the group consisting of oxygen, hydrogen, nitrogen, and a C1-C5 hydrocarbon with said adsorbent, said adsorbent having said material adsorbed thereon, desorbing said material from said adsorbent at desorption conditions, and recovering a desorption effluent stream comprising said material and said second component; and (d) forming said regeneration inlet stream from at least a portion of said desorption effluent stream.