WO2001021530A1 - Vorrichtung zum thermischen behandeln körniger feststoffe - Google Patents
Vorrichtung zum thermischen behandeln körniger feststoffe Download PDFInfo
- Publication number
- WO2001021530A1 WO2001021530A1 PCT/EP2000/006174 EP0006174W WO0121530A1 WO 2001021530 A1 WO2001021530 A1 WO 2001021530A1 EP 0006174 W EP0006174 W EP 0006174W WO 0121530 A1 WO0121530 A1 WO 0121530A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reactor
- solids
- gas
- solid matter
- fuel
- Prior art date
Links
- 239000007787 solid Substances 0.000 title claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 37
- 239000000446 fuel Substances 0.000 claims abstract description 10
- 239000000567 combustion gas Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007669 thermal treatment Methods 0.000 claims description 4
- 238000003260 vortexing Methods 0.000 abstract 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- 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
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/14—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moving in free vortex flow apparatus
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2405—Stationary reactors without moving elements inside provoking a turbulent flow of the reactants, such as in cyclones, or having a high Reynolds-number
-
- 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
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/008—Pyrolysis reactions
-
- 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
- C01F7/444—Apparatus therefor
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
- B01J2219/00112—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant solids
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00159—Controlling the temperature controlling multiple zones along the direction of flow, e.g. pre-heating and after-cooling
-
- 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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/18—Details relating to the spatial orientation of the reactor
- B01J2219/182—Details relating to the spatial orientation of the reactor horizontal
Definitions
- the invention relates to a device for the thermal treatment of granular solids for carrying out endothermic reactions, with CO_ and / or water being split off from the solids, with a reactor to which fuel, 0 2 -containing gas and preheated solids are fed, with the fuel burns to produce combustion gas at temperatures in the range of 600 to 1500 ° C in the reactor, brings the solids in the reactor m swirling contact with the combustion gases, uses hot exhaust gas from the reactor to preheat the solids and solids with temperatures in the range of 400 to 1200 ° C.
- Devices of this type are known and z.
- WO 97/18165 proposes a circulating fluidized bed for the reactor and according to GB 2 019 369 A1 the reactor is tubular with a vertical axis.
- the invention is based, to implement the above-mentioned device in a simple manner and to be able to get by with as little Ba nohe the system the task.
- the reactor is designed as an approximately cylindrical, lying cyclone with an approximately horizontal axis of symmetry and vortex, m an inlet area of the reactor fuel, solids and gases m the reactor and from an outlet area of the reactor, the Entry area lies approximately opposite each other at a horizontal distance, solids and hot exhaust gas are drawn off.
- At least one preheating cyclone is connected upstream of the reactor.
- the solids can be prewarned in at least one cyclone with exhaust gas from the reactor, the used exhaust gas being drawn off through a drain pipe arranged in the cyclone.
- the dip tube-like Derivation saves height and can also be used to fix the cyclone.
- the reactor can be used for the thermal treatment of various types of solids, for example aluminum hydroxide, which is converted to aluminum oxide, may be mentioned here.
- z. B. carbonates in question from which CO is driven out thermally in order to obtain oxides.
- care will be taken to ensure that at least 50% by weight of the solids fed to the reactor have a residence time of at least 5 seconds in the reactor, their heating to the respectively required temperature.
- FIG. 2 shows a vertical longitudinal section through the reactor in a schematic representation
- FIG. 3 shows a section along the line III-III in FIG. 2 through the inlet region of the reactor of FIG.
- Fig. 4 shows a section along the line IV-IV through the
- the plant according to FIG. 1 has the core (1) of the reactor (1), which has approximately the shape of a horizontal cylinder with a horizontal axis of symmetry and vortex.
- the two preheating stages consist of the cyclones (2) and (3) with associated risers (2a) and (3a), to which solids are fed in the foot area.
- the solids to be treated e.g. B. aluminum hydroxide, one feeds through the line (4) m the riser (2a), where they are transported pneumatically with the help of hot gas from the line (5) m the cyclone (2).
- the exhaust gas leaves the cyclone (2) through line (2b), which is led downward within the cyclone (2) and m m a gas cleaning (6).
- the gas cleaning can e.g. B.
- the pipe (12) is fed to the reactor (1) with preheated Gas (e.g. air) is added, at the same time fuel comes from the line (13).
- gaseous fuel e.g. B. natural gas.
- gaseous fuel e.g. B. natural gas.
- the combustion of the fuel with the 0 2 -containing gas already starts at the gas inlet (la) of the reactor (1), then a rotational flow with a horizontal swirl axis forms in the inlet region (1); Details are explained below with the aid of FIGS. 2 to 4.
- the hot solid product leaves the reactor (1) through the outlet (lb) and is through the line (11) of the cooling fed.
- cooling can take place in one or more stages. In the present case, two cooling stages are shown, to which the cyclones (15) and (16) and the associated risers (15a) and (16a) belong.
- Relatively cold, 0 2 -containing gas is passed through the line (17) to the bottom of the riser (15a), where it is the solid product from line (11) m the cyclone
- This riser (16a) is passed through line (19) relatively cold 0 2 -halt ⁇ ges gas, for. B. ambient air, and solids pneumatically m the cyclone (16). The gas then leaves the cyclone (16) through line (17) and cooled solids are withdrawn from line (20).
- the number of cooling levels can be selected as required.
- FIGS. 2 to 4 show details of the reactor (1) with the gas inlet (la), a solids inlet (lc), a gas outlet (9a) and the solids outlet (lb).
- the preheated solids are fed into the line (10) and are guided approximately centrally through the inlet (lc) m into the inlet area of the reactor (1), where they are detected by the combustion gases that come from the gas inlet (la). It is possible to remove all or part of the solids from line (10) by the dashed line Line (10a) through the inlet (la) to the reactor (1).
- the outlet line (9a) is preferably designed to protrude by a length T into the interior of the reactor in the manner of a dip tube. This results in favorable flow conditions, which lengthen the residence tents in the reactor.
- the length T is preferably 0.03 to 0.2 times the reactor length L.
- the swirl number which is the ratio of the axial pulse to the angular momentum, taking into account the solids pulse and the quotient of the inlet and outlet temperatures , is greater than 1.5.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Furnace Details (AREA)
- Treatment Of Sludge (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Cyclones (AREA)
- Tunnel Furnaces (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Drying Of Solid Materials (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002384957A CA2384957A1 (en) | 1999-09-17 | 2000-07-03 | Device for thermally treating granular solid matter |
AT00947911T ATE248771T1 (de) | 1999-09-17 | 2000-07-03 | Vorrichtung zum thermischen behandeln körniger feststoffe |
EP00947911A EP1212260B1 (de) | 1999-09-17 | 2000-07-03 | Vorrichtung zum thermischen behandeln körniger feststoffe |
AU61538/00A AU778126B2 (en) | 1999-09-17 | 2000-07-03 | Device for thermally treating granular solid matter |
EA200200318A EA004496B1 (ru) | 1999-09-17 | 2000-07-03 | Установка и способ термической обработки зернистых твердых веществ |
DE50003573T DE50003573D1 (de) | 1999-09-17 | 2000-07-03 | Vorrichtung zum thermischen behandeln körniger feststoffe |
BRPI0014085-6A BR0014085B1 (pt) | 1999-09-17 | 2000-07-03 | dispositivo para o tratamento tÉrmico de material sàlido granulado. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944778.0 | 1999-09-17 | ||
DE19944778A DE19944778B4 (de) | 1999-09-17 | 1999-09-17 | Verfahren zum thermischen Behandeln körniger Feststoffe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001021530A1 true WO2001021530A1 (de) | 2001-03-29 |
Family
ID=7922482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/006174 WO2001021530A1 (de) | 1999-09-17 | 2000-07-03 | Vorrichtung zum thermischen behandeln körniger feststoffe |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1212260B1 (de) |
CN (1) | CN1197776C (de) |
AT (1) | ATE248771T1 (de) |
AU (1) | AU778126B2 (de) |
BR (1) | BR0014085B1 (de) |
CA (1) | CA2384957A1 (de) |
DE (2) | DE19944778B4 (de) |
EA (1) | EA004496B1 (de) |
ES (1) | ES2204657T3 (de) |
WO (1) | WO2001021530A1 (de) |
ZA (1) | ZA200201890B (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100406104C (zh) * | 2005-01-26 | 2008-07-30 | 中国铝业股份有限公司 | 熟料溶出磨制粉尘收尘方法及洗涤塔 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752455A (en) * | 1969-08-21 | 1973-08-14 | Prerovske Strojirny Np | Arrangement for burning of pulverulent and fine grain material |
GB2019369A (en) * | 1978-04-20 | 1979-10-31 | Smidth & Co As F L | Improvements relating to the production of anhydrous alumina |
RU1806309C (ru) * | 1989-03-03 | 1993-03-30 | Научно-технический центр "Новатор" Приморского краевого совета ВОИР | Горизонтальна циклонна топка |
US5616303A (en) * | 1994-10-11 | 1997-04-01 | Gas Research Institute | Centrifugal bed reactor |
DE19542309A1 (de) * | 1995-11-14 | 1997-05-15 | Metallgesellschaft Ag | Verfahren zur Herstellung von Aluminiumoxid aus Aluminiumhydroxid |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2048207A1 (de) * | 1970-10-01 | 1972-04-06 | Kloeckner Humboldt Deutz Ag | Einrichtung zur Herstellung von Tonerde aus Tonerdehydrat |
-
1999
- 1999-09-17 DE DE19944778A patent/DE19944778B4/de not_active Expired - Fee Related
-
2000
- 2000-07-03 CA CA002384957A patent/CA2384957A1/en not_active Abandoned
- 2000-07-03 DE DE50003573T patent/DE50003573D1/de not_active Expired - Fee Related
- 2000-07-03 EA EA200200318A patent/EA004496B1/ru not_active IP Right Cessation
- 2000-07-03 WO PCT/EP2000/006174 patent/WO2001021530A1/de active IP Right Grant
- 2000-07-03 BR BRPI0014085-6A patent/BR0014085B1/pt not_active IP Right Cessation
- 2000-07-03 AU AU61538/00A patent/AU778126B2/en not_active Ceased
- 2000-07-03 EP EP00947911A patent/EP1212260B1/de not_active Expired - Lifetime
- 2000-07-03 AT AT00947911T patent/ATE248771T1/de not_active IP Right Cessation
- 2000-07-03 CN CNB008144788A patent/CN1197776C/zh not_active Expired - Fee Related
- 2000-07-03 ES ES00947911T patent/ES2204657T3/es not_active Expired - Lifetime
-
2002
- 2002-03-07 ZA ZA200201890A patent/ZA200201890B/xx unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3752455A (en) * | 1969-08-21 | 1973-08-14 | Prerovske Strojirny Np | Arrangement for burning of pulverulent and fine grain material |
GB2019369A (en) * | 1978-04-20 | 1979-10-31 | Smidth & Co As F L | Improvements relating to the production of anhydrous alumina |
RU1806309C (ru) * | 1989-03-03 | 1993-03-30 | Научно-технический центр "Новатор" Приморского краевого совета ВОИР | Горизонтальна циклонна топка |
US5616303A (en) * | 1994-10-11 | 1997-04-01 | Gas Research Institute | Centrifugal bed reactor |
DE19542309A1 (de) * | 1995-11-14 | 1997-05-15 | Metallgesellschaft Ag | Verfahren zur Herstellung von Aluminiumoxid aus Aluminiumhydroxid |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch Week 199424, Derwent World Patents Index; Class J09, AN 1994-198367, XP002152134 * |
Also Published As
Publication number | Publication date |
---|---|
ZA200201890B (en) | 2002-12-24 |
EA004496B1 (ru) | 2004-04-29 |
ATE248771T1 (de) | 2003-09-15 |
EP1212260A1 (de) | 2002-06-12 |
ES2204657T3 (es) | 2004-05-01 |
BR0014085B1 (pt) | 2009-01-13 |
CN1197776C (zh) | 2005-04-20 |
AU6153800A (en) | 2001-04-24 |
EP1212260B1 (de) | 2003-09-03 |
DE19944778A1 (de) | 2001-03-29 |
BR0014085A (pt) | 2002-05-21 |
DE19944778B4 (de) | 2004-07-08 |
EA200200318A1 (ru) | 2002-10-31 |
CN1379734A (zh) | 2002-11-13 |
DE50003573D1 (de) | 2003-10-09 |
CA2384957A1 (en) | 2001-03-29 |
AU778126B2 (en) | 2004-11-18 |
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