Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1985-12-27
1987-03-03
Konopka, P. E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
208140, 422191, 422192, 422193, 422216, 422223, 502 47, 502 48, B01J 3844, B01J 3826, B01J 3824, B01J 2396
Patent
active
046475494
ABSTRACT:
A vessel for effecting multiple treatment steps needed to regenerate spent hydrocarbon conversion catalyst. Regeneration is accomplished by means of a moving bed of catalyst, where catalyst is passed through several treatment zones in the regeneration vessel. Catalyst is contacted with a hot oxygen-containing gas stream in order to remove coke which accumulates on the catalyst while it is in a hydrocarbon conversion zone. After the coke is burned off in a combustion zone, catalyst is passed into a drying zone for removal of water formed in the combustion zone which has remained on the catalyst instead of being carried off with combustion gases. Water removal is accomplished by passing a hot dry air stream through the catalyst. This air stream is introduced into the bottom of the regeneration vessel and is heated by exchange of heat with catalyst, thereby effecting the required cooling of the catalyst. Before passing into the drying zone, the air is heated further by heating means located in the vessel. After passing through the drying zone, the air stream provides oxygen for combustion in the combustion zone.
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Cordovano Richard J.
Konopka P. E.
McBride Thomas K.
Spears Jr. John F.
UPO Inc.
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