Patent ID: 7223710
Filing Date: 2007-05-29
Classification: B01J,C10G

Abstract:
1. A process for the regeneration of a hydrocarbon conversion catalyst in the presence of halogen, the process comprising: (a) contacting a regeneration inlet stream comprising halogen with catalyst in a catalyst bed to at least partially regenerate the catalyst in the catalyst bed, and withdrawing a regeneration effluent stream comprising halogen from the catalyst bed; (b) contacting a first portion of the regeneration effluent stream with adsorbent in a first adsorbent bed, removing halogen from the first portion of the regeneration effluent stream and adsorbing halogen on adsorbent in the first adsorbent bed, and recovering an adsorption effluent stream from the first adsorbent bed; (c) contacting a second portion of the regeneration effluent stream with adsorbent in a second adsorbent bed, the adsorbent in the second adsorbent bed having halogen adsorbed thereon, desorbing halogen from the adsorbent in the second adsorbent bed, and withdrawing a desorption effluent stream comprising halogen from the second adsorbent bed; and, (d) forming the regeneration inlet stream from at least a portion of the desorption effluent stream.