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1. (WO1998050142) PROCESS FOR REGULATING A CIRCULATING FLUIDISED BED AND USE OF THE PROCESS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050142 International Application No.: PCT/EP1998/002668
Publication Date: 12.11.1998 International Filing Date: 06.05.1998
Chapter 2 Demand Filed: 04.12.1998
IPC:
B01J 8/00 (2006.01) ,B01J 8/24 (2006.01) ,B01J 8/38 (2006.01) ,C01G 49/06 (2006.01) ,C01G 49/08 (2006.01) ,C22B 1/10 (2006.01) ,C22B 5/14 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8
Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8
Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
18
with fluidised particles
24
according to "fluidised-bed" technique
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
8
Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
18
with fluidised particles
24
according to "fluidised-bed" technique
38
with fluidised bed containing a rotatable device or being subject to rotation
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
49
Compounds of iron
02
Oxides; Hydroxides
06
Ferric oxide (Fe2O3)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
49
Compounds of iron
02
Oxides; Hydroxides
08
Ferroso-ferric oxide (Fe3O4)
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
1
Preliminary treatment of ores or scrap
02
Roasting processes
10
in fluidised form
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
B
PRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
5
General processes of reducing to metals
02
Dry processes
12
by gases
14
fluidised material
Applicants:
METALLGESELLSCHAFT AKTIENGESELLSCHAFT [DE/DE]; Bockenheimer Landstrasse 73-77 D-60325 Frankfurt am Main, DE (AllExceptUS)
BAYER AKTIENGESELLSCHAFT [DE/DE]; D-51368 Leverkusen, DE (AllExceptUS)
SCHMIDT, Hans-Werner [DE/DE]; DE (UsOnly)
RAHN, Martin [DE/DE]; DE (UsOnly)
HEISSWOLF, Horst [DE/DE]; DE (UsOnly)
SCHNELL, Marc [DE/DE]; DE (UsOnly)
ERKES, Bernd [DE/DE]; DE (UsOnly)
Inventors:
SCHMIDT, Hans-Werner; DE
RAHN, Martin; DE
HEISSWOLF, Horst; DE
SCHNELL, Marc; DE
ERKES, Bernd; DE
Agent:
REVESZ, Veronika; Metallgesellschaft AG c/o Lurgi AG Abteilung Patente, A-VRP Lurgiallee 5 D-60295 Frankfurt am Main, DE
Priority Data:
197 19 481.807.05.1997DE
Title (DE) VERFAHREN ZUR EINSTELLUNG EINER ZIRKULIERENDEN WIRBELSCHICHT UND VERWENDUNG DES VERFAHRENS
(EN) PROCESS FOR REGULATING A CIRCULATING FLUIDISED BED AND USE OF THE PROCESS
(FR) PROCEDE POUR REGLER UN LIT FLUIDISE EN CIRCULATION ET UTILISATION DU PROCEDE
Abstract:
(DE) Bei diesem Verfahren wird als Teilmenge des Trägergases mindestens ein Teilstrom des aus dem Zyklon (2) abgeführten Reingases an mindestens einer Stelle der zirkulierenden Wirbelschicht eingesetzt und das als Teilmenge des Trägergases eingesetzte Reingas vor der Zuleitung in die zirkulierende Wirbelschicht mit 10 bis 90 Gew.-% Treibgas, bezogen auf die Menge des Teilstroms des aus dem Zyklon (2) abgeführten Reingases, in einem Injektormischer (8) vermischt und die Mischung als Trägergas der zirkulierenden Wirbelschicht zugeführt.
(EN) In this process, at least part of the pure gas stream discharged from the cyclone (2) is used as at least part of the carrier gas at least in one spot of the circulating fluidised bed, the pure gas used as part of the carrier gas is mixed in an injector mixer (8) with 10 to 90 wt % propellant gas, relative to the volume of the pure gas stream discharged from the cyclone (2), before the supply line into the circulating fluidised bed, and the mixture is supplied as carrier gas to the circulating fluidised bed.
(FR) Selon ce procédé, au moins une partie du courant de gaz purifié déchargé du cyclone (2) est utilisé pour former au moins une partie du gaz porteur à au moins un point du lit fluidisé en circulation. Le gaz purifié utilisé pour former une partie du gaz porteur est mélangé dans un mélangeur injecteur (8) avec 10 à 90 % de gaz propulseur, par rapport au volume du courant partiel de gaz purifié déchargé du cyclone (2), en amont du conduit d'amenée au lit fluidisé en circulation, et le mélange est amené comme gaz porteur au lit fluidisé en circulation.
Designated States: AU, BR, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
EP0980287US6488901AU1998077622