1329098 Catalyst regeneration apparatus UNIVERSAL OIL PRODUCTS CO 18 Sept 1970 [25 Sept 1969] 20071/73 Divided out of 1329096 Heading B1F A regeneration apparatus for regenerating used catalyst comprises a vertically elongated pressure-tight vessel 31 having a cylindrical screen 34 disposed therein over a portion of its length, the screen defining a space for a continuously moving catalyst bed 34 and the space between the screen and the inner wall of the vessel forming an annular manifold. The catalyst is added at 30 falls under gravity through the vessel and is subjected firstly to decarbonization, then to chlorination and finally to drying before being removed at 54. To this end the manifold is divided by internal baffles into an upper decarbonization zone having an inlet 44 for oxygen-containing gases which have been heated in heater 43 and an outlet 36 for combustion products, and a lower chlorination zone having an inlet 46 for a mixture of steam and chlorine which has been heated in heater 49 and an outlet 50 for excess steam and chlorine. Heated dry air is supplied to the lower part of the. bed at 35 to dry the catalyst. The combustion products removed at 36 are recycled to the zone at 44 after removal of halogen and oxides of sulphur in scrubber 37 where they are treated with a caustic steam. Excess steam and chlorine withdrawn from the chlorination zone at 50 is recycled to 46. Specification 1329097 describes and claims this regenerator in combination with a multiple stage reactor. Specification 1329096 describes and claims a continuous reforming-regenerating process using the above apparatus.
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