Regeneration method for gravity-flowing deactivated catalyst...

Details Regeneration method for gravity-flowing deactivated catalyst... Regeneration method for gravity-flowing deactivated catalyst...

B - Operations, Transporting

01

J

252/63

B01J 23/96 (2006.01) B01J 21/20 (2006.01)

Patent

CA 1095882

ABSTRACT A continuous method for regenerating deactivated catalyst particles in a regeneration zone through which the particles are downwardly movable by way of gravity-flow. Particles are initially introduced into an upper carbon-burn- ing/halogenation zone wherein they are contacted, in a first section, with a first air stream and a first mixture of steam and a halogen, or halogen-containing compound. Partially regenerated/reconditioned particles are then contacted, in a lower second section, with a second air stream and a second mix- ture of steam and halogen. From this two-sectioned, carbon- burning/halogenation zone, the catalyst particles flow via gravity into a drying zone wherein they are contacted by a substantially dry air stream.

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