Process and apparatus for cooling hot solids coming from a fluidized bed reactor

Hot solids coming from a fluidized bed reactor are passed through the cooling apparatus and at least in part are recycled to the fluidized bed reactor. In the cooling apparatus the hot solids flow first through a first fluidized bed and then flow downwardly through a gas-collecting space to a second...

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Bibliographische Detailangaben
Hauptverfasser:	MARTIN HIRSCH, RAINER REIMERT, MICHAEL STRODER, RUDOLF KRAL, WLADYSLAW LEWANDOWSKI, JOHANNES ALBRECHT
Format:	Patent
Sprache:	eng
Schlagworte:	AIR APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES BLASTING CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL ORCHEMICAL PROCESSES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY COMBUSTION APPARATUS COMBUSTION PROCESSES FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING KILNS LIGHTING MECHANICAL ENGINEERING METHODS OF STEAM GENERATION METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN OPEN SINTERING OR LIKE APPARATUS OVENS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RETORTS STEAM BOILERS STEAM GENERATION THEIR RELEVANT APPARATUS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Hot solids coming from a fluidized bed reactor are passed through the cooling apparatus and at least in part are recycled to the fluidized bed reactor. In the cooling apparatus the hot solids flow first through a first fluidized bed and then flow downwardly through a gas-collecting space to a second fluidized bed, which is provided with cooling coils and in which the solids flow downwardly to a solids transfer passage and are then raised through a third fluidized bed to a discharge line. The system is controlled to cause solids coming from the first fluidized bed to flow through the gas-collecting space directly to the discharge line.