UA100992C2 - Process and plant for thermal treatment of particulate solids - Google Patents

Process and plant for thermal treatment of particulate solids

Info

Publication number
UA100992C2
UA100992C2 UAA201003637A UAA201003637A UA100992C2 UA 100992 C2 UA100992 C2 UA 100992C2 UA A201003637 A UAA201003637 A UA A201003637A UA A201003637 A UAA201003637 A UA A201003637A UA 100992 C2 UA100992 C2 UA 100992C2
Authority
UA
Ukraine
Prior art keywords
fluidized
plant
bed reactor
thermal treatment
particulate solids
Prior art date
Application number
UAA201003637A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Пека Хилтунен
Гюнтер Шнайдер
Михель Мисала
Original Assignee
Оутотек Ойй
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 Оутотек Ойй filed Critical Оутотек Ойй
Publication of UA100992C2 publication Critical patent/UA100992C2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • C01F7/445—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination making use of a fluidised bed
    • 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
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining
    • B01J6/004—Calcining using hot gas streams in which the material is moved
    • 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
    • B01J8/005—Separating solid material from the gas/liquid stream
    • B01J8/0055—Separating solid material from the gas/liquid stream using cyclones
    • 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
    • B01J8/005—Separating solid material from the gas/liquid stream
    • B01J8/006—Separating solid material from the gas/liquid stream by filtration
    • 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
    • B01J8/26—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 two or more fluidised beds, e.g. reactor and regeneration installations
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
    • B01J2208/00141—Coils
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/0053—Controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

In the production of alumina from aluminium hydroxide, the aluminium hydroxide is calcined in a fluidized-bed reactor upon preheating in at least one preheating stage and is then supplied to at least one fluidized-bed cooler, in which the calcined solids are cooled by means of fluidizing air, wherein the fluidizing air is withdrawn from the cooler and introduced into the fluidized-bed reactor as secondary air. In order to minimize the specific energy consumption in partial-load operation of the plant, the secondary air stream is divided and a bypass stream is guided past the fluidized-bed reactor and introduced into a delivery conduit for the solids.
UAA201003637A 2007-09-01 2008-07-10 Process and plant for thermal treatment of particulate solids UA100992C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007041586.0A DE102007041586B4 (en) 2007-09-01 2007-09-01 Process and plant for the heat treatment of granular solids
PCT/EP2008/005619 WO2009026989A1 (en) 2007-09-01 2008-07-10 Process and plant for the thermal treatment of granular solids

Publications (1)

Publication Number Publication Date
UA100992C2 true UA100992C2 (en) 2013-02-25

Family

ID=39951542

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA201003637A UA100992C2 (en) 2007-09-01 2008-07-10 Process and plant for thermal treatment of particulate solids

Country Status (6)

Country Link
AU (1) AU2008291392B2 (en)
BR (1) BRPI0816090B1 (en)
DE (1) DE102007041586B4 (en)
EA (1) EA016569B1 (en)
UA (1) UA100992C2 (en)
WO (1) WO2009026989A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009006094B4 (en) 2009-01-26 2018-10-31 Outotec Oyj Process and plant for the production of aluminum oxide from aluminum hydroxide
DE102009006095B4 (en) * 2009-01-26 2019-01-03 Outotec Oyj Process and plant for the production of aluminum oxide from aluminum hydroxide
DE102015108722A1 (en) * 2015-06-02 2016-12-08 Outotec (Finland) Oy Process and plant for the thermal treatment of granular solids
DE102016103100A1 (en) * 2016-02-23 2017-08-24 Outotec (Finland) Oy Process and apparatus for the thermal treatment of granular solids
DE102016104738A1 (en) * 2016-03-15 2017-09-21 Outotec (Finland) Oy Process and apparatus for the thermal treatment of granular solids
AU2017365247B2 (en) * 2016-11-22 2019-10-31 Metso Metals Oy Process and plant for thermal treatment in a fluidized bed reactor
CN108083294A (en) * 2018-02-12 2018-05-29 沈阳鑫博工业技术股份有限公司 A kind of device and method that aluminium oxide and sodium oxide molybdena are extracted from red mud

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143880A (en) * 1967-06-16 1900-01-01
DE1767628C3 (en) * 1968-05-30 1985-03-14 Metallgesellschaft Ag, 6000 Frankfurt Process for performing endothermic processes
DE2048207A1 (en) * 1970-10-01 1972-04-06 Kloeckner Humboldt Deutz Ag Equipment for the production of alumina from alumina hydrate
DE2524540C2 (en) * 1975-06-03 1986-04-24 Metallgesellschaft Ag, 6000 Frankfurt Process for performing endothermic processes
DE19542309A1 (en) 1995-11-14 1997-05-15 Metallgesellschaft Ag Process for the production of aluminum oxide from aluminum hydroxide
DE10260741A1 (en) * 2002-12-23 2004-07-08 Outokumpu Oyj Process and plant for the heat treatment of fine-grained solids

Also Published As

Publication number Publication date
EA201000417A1 (en) 2010-10-29
EA016569B1 (en) 2012-05-30
WO2009026989A1 (en) 2009-03-05
BRPI0816090A2 (en) 2015-04-07
AU2008291392B2 (en) 2013-05-23
AU2008291392A1 (en) 2009-03-05
DE102007041586B4 (en) 2014-03-27
DE102007041586A1 (en) 2009-03-05
BRPI0816090B1 (en) 2018-09-11

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