FLUIDIZATION OF PERMANENTLY MAGNETIC PARTICLE BEDS

A process for the stabilization of a fluidized bed against bubble formation in an apparatus which comprises a vessel, a plurality of permanently magnetized particles dispersed throughout the bed, and means for fluidizing said particles. The particles are designated as permanently magnetized by virtu...

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Bibliographische Detailangaben
1. Verfasser:	COULALOGLOU, COSTAS A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY CRACKING HYDROCARBON OILS ELECTRICITY FUELS INDUCTANCES LUBRICANTS MAGNETS 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 SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSFORMERS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for the stabilization of a fluidized bed against bubble formation in an apparatus which comprises a vessel, a plurality of permanently magnetized particles dispersed throughout the bed, and means for fluidizing said particles. The particles are designated as permanently magnetized by virtue of their possessing a coercivity of at least 50 oersteds. The permanently magnetized particles exert magnetic attractive forces upon one another, thereby imparting stability to the fluidized bed. In these beds, fluid throughput rates which are up to 10 or more times the flow rate of said fluid at incipient fluidization of the unmagnetized particles can be achieved with little or no bubbling and at bed pressure drops equal to bed weight.