REGENERATING COKE CONTAMINATED FLUID CATALYST

Apparatus for the oxidative removal of coke from a coke contaminated solid fluidizable catalyst such as a fluid catalytic cracking catalyst comprises a high temperature coke combustion zone (1), a catalyst disengagement zone (2) and an external heat removal zone (3). A mixture of coke contaminated c...

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Hauptverfasser:	CHARLES LEROY HEMLER, ANTHONY GRANVILLE VICKERS, HAROLD U. HAMMERSHAIMB
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Apparatus for the oxidative removal of coke from a coke contaminated solid fluidizable catalyst such as a fluid catalytic cracking catalyst comprises a high temperature coke combustion zone (1), a catalyst disengagement zone (2) and an external heat removal zone (3). A mixture of coke contaminated catalyst, oxygen-containing regeneration gas and hot regenerated catalyst and cool regenerated catalyst from the heat removal zone (3) are contacted in the high temperature combustion zone (1), the temperature of which may be controlled by adjusting the rate at which catalyst is recycled from the heat removal zone (3). The temperature of the catalyst/gas mixture may be controlled by adjusting the rate at which hot catalyst is recycled from the disengagement zone (2).