FR2076745A5 - Fluidised bed treatment - of powdered materials in two stages - Google Patents

Fluidised bed treatment - of powdered materials in two stages

Info

Publication number
FR2076745A5
FR2076745A5 FR7002728A FR7002728A FR2076745A5 FR 2076745 A5 FR2076745 A5 FR 2076745A5 FR 7002728 A FR7002728 A FR 7002728A FR 7002728 A FR7002728 A FR 7002728A FR 2076745 A5 FR2076745 A5 FR 2076745A5
Authority
FR
France
Prior art keywords
fluidised bed
fluidiser
stages
powdered materials
bed treatment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7002728A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institut de Recherches de la Siderurgie Francaise IRSID filed Critical Institut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7002728A priority Critical patent/FR2076745A5/en
Application granted granted Critical
Publication of FR2076745A5 publication Critical patent/FR2076745A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/36—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed through which there is an essentially horizontal flow of particles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

Treatment process is one in which sinter is subjected to preheating in a vertical fluidiser followed by reduction in a horizontal fluidised bed in which the residence time in the fluidiser can be accurately controlled. The sinter from stage 1 which has been carefully heat treated to ensure that its temp. is homogeneous is treated with a reducing gas consisting usually of a mixture of H2 and CO2 from a cracking plant. 85% of the theoretical quantity of Wustite has been reduced after staying 25 min in the horizontal fluidiser with a productivity of 3t/h/m2.
FR7002728A 1970-01-27 1970-01-27 Fluidised bed treatment - of powdered materials in two stages Expired FR2076745A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7002728A FR2076745A5 (en) 1970-01-27 1970-01-27 Fluidised bed treatment - of powdered materials in two stages

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7002728A FR2076745A5 (en) 1970-01-27 1970-01-27 Fluidised bed treatment - of powdered materials in two stages

Publications (1)

Publication Number Publication Date
FR2076745A5 true FR2076745A5 (en) 1971-10-15

Family

ID=9049636

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7002728A Expired FR2076745A5 (en) 1970-01-27 1970-01-27 Fluidised bed treatment - of powdered materials in two stages

Country Status (1)

Country Link
FR (1) FR2076745A5 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305998A1 (en) * 1975-04-04 1976-10-29 Daikin Ind Ltd ACTIVE CARBON REGENERATION EQUIPMENT, WITH MULTI-STAGE FLUIDIZED BEDS
FR2363071A1 (en) * 1976-08-23 1978-03-24 Gi Tsementn Floating loose material heat treatment - uses reactors with program controlled gas valves fitted in nozzles
EP0041142A1 (en) * 1980-06-04 1981-12-09 BASF Aktiengesellschaft Process for preparing acicular ferromagnetic particles mainly consisting of iron
FR2578629A1 (en) * 1985-03-11 1986-09-12 Fives Cail Babcock Fluidised bed combustion or gasifying device including an endless chain for extracting the ash
EP0622596A1 (en) * 1993-02-26 1994-11-02 Kawasaki Jukogyo Kabushiki Kaisha Method and apparatus for sintering cement clinker

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2305998A1 (en) * 1975-04-04 1976-10-29 Daikin Ind Ltd ACTIVE CARBON REGENERATION EQUIPMENT, WITH MULTI-STAGE FLUIDIZED BEDS
FR2363071A1 (en) * 1976-08-23 1978-03-24 Gi Tsementn Floating loose material heat treatment - uses reactors with program controlled gas valves fitted in nozzles
EP0041142A1 (en) * 1980-06-04 1981-12-09 BASF Aktiengesellschaft Process for preparing acicular ferromagnetic particles mainly consisting of iron
FR2578629A1 (en) * 1985-03-11 1986-09-12 Fives Cail Babcock Fluidised bed combustion or gasifying device including an endless chain for extracting the ash
EP0622596A1 (en) * 1993-02-26 1994-11-02 Kawasaki Jukogyo Kabushiki Kaisha Method and apparatus for sintering cement clinker
US5536167A (en) * 1993-02-26 1996-07-16 Kawasaki Jukogyo Kabushiki Kaisha Method and apparatus for sintering cement clinker
US5595599A (en) * 1993-02-26 1997-01-21 Kawasaki Jukogyo Kabushiki Kaisha Method and apparatus for sintering cement clinker

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Legal Events

Date Code Title Description
ST Notification of lapse