MAGNETICALLY STABILIZED FLUID BED PROCESS

A fluidized bed process having reduced solids backmixing with improved heat and means transfer characteristics, which comprises subjecting a bed comprised of fluidizable, magnetizable solids to a substantially uniform magnetic field, and passing a gas upwardly through said bed at a superficial gasve...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MARTIN OTTOMAR GERNAND, FRANCIS XAVIER MAYER
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A fluidized bed process having reduced solids backmixing with improved heat and means transfer characteristics, which comprises subjecting a bed comprised of fluidizable, magnetizable solids to a substantially uniform magnetic field, and passing a gas upwardly through said bed at a superficial gasvelocity at least twice the superficial minimum fluidization gas velocity, in the absence of said magnetic field, to produce bubbling therein without significant entrainment of solids in the gas leaving the bed. In order to obtain such high gas velocities while maintaining the bed in the fluidized state without significant backmixing of solids in the bed And entrainment of solids in the gas leaving the bed, it is preferable to employ magnetic fields having a field strength greater then 50 oersteds and particles containing at least 50 volume % non-magnetizable material.