EP2560750A1 - Vorrichtung und verfahren zur thermischen vorbehandlung von festen einsatzstoffen in einer konzentrisch gestuften wirbelschicht - Google Patents
Vorrichtung und verfahren zur thermischen vorbehandlung von festen einsatzstoffen in einer konzentrisch gestuften wirbelschichtInfo
- Publication number
- EP2560750A1 EP2560750A1 EP11714489A EP11714489A EP2560750A1 EP 2560750 A1 EP2560750 A1 EP 2560750A1 EP 11714489 A EP11714489 A EP 11714489A EP 11714489 A EP11714489 A EP 11714489A EP 2560750 A1 EP2560750 A1 EP 2560750A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluidized bed
- treatment zone
- treatment
- fluidized
- overflow
- 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.)
- Withdrawn
Links
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
- B01J8/18—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
-
- 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
- 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
- B01J8/1872—Details of the fluidised bed reactor
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/44—Solid fuels essentially based on materials of non-mineral origin on vegetable substances
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Definitions
- the invention relates to the thermal pretreatment of solid
- Fluidized bed takes place through at least two concentrically arranged treatment zones, wherein both an individual residence time and an individual temperature can be set in the stepped treatment zones.
- Torrefaction is understood as meaning the decomposition reactions of organic feedstocks, such as biomass, occurring below about 300 ° C., for which purpose the term "mild pyrolysis" is used as well, whereas above 400 ° C. only a small amount of solid remains as coke, about 20% by weight .-% for beech wood at 400 ° C, remain at about 250 ° C depending on the biomass type about 80 to 95 wt .-% as a solid.
- the treatment of the biomass at 220 ° C to 350 ° C causes the by As a result, subsequent, further size reduction is simplified and the required energy expenditure for the fiber structure is reduced
- the object of the invention is therefore to be able to adjust the residence time distribution of the treated particles more homogeneously, so a homogenization of
- Treated treatment zones and their geometric design are Treated treatment zones and their geometric design.
- the object of the invention is achieved with a fluidized bed reactor for the thermal pretreatment of solid, hydrous starting materials, containing
- Each of the treatment zones has at least one separate gas inlet for fluidizing gas
- Each treatment zone is separated from the other adjacent treatment zone by an overflow weir,
- the outermost treatment zone has a charge feed device
- the innermost treatment zone has a trigger for pretreated feedstocks.
- an overflow weir which has a lowered part overflow, which is arranged offset by 180 degrees to the feeder.
- more overflow weirs can be provided, which all have a lowered partial overflow, each offset by 180 degrees to the overflow of each outer
- Treatment zone is arranged.
- an underflow weir is provided within at least one of the treatment zones.
- Treatment zones provided separate gas exhaust devices.
- As the gas inlet for Fluidisiergas be nozzles. Holes, slits or bells provided.
- the object of the invention is also achieved by a process for the thermal pretreatment of solid feedstocks in a stepped fluidized bed in a fluidized bed reactor having at least two concentrically arranged treatment zones, wherein
- the temperatures of the fluidizing gas of the respective stages are regulated separately,
- the fluidized material flows from the respective outer treatment zone via the overflow weir into the respective inner treatment zone, and
- FIG. 1 shows by way of example a variant with two treatment zones
- FIG. 2 shows, analogously to FIG. 1, a two-stage device
- FIGS. 3 and 4 each show a device according to the invention with three concentric treatment zones
- FIGS 5 and 6 show further advantageous embodiments of the invention.
- Figure 1 shows an example of a variant with two treatment zones.
- Feedstock 1 is via a feed screw 2 in the reactor 3 in the first
- Treatment zone 4 introduced. This is loosened and fluidized with the aid of the fluidizing gas 5.
- the temperature of the fluidizing gas 5 is selected, for example, such that drying of the starting material takes place in the first treatment zone 4.
- the exhaust gas 6 from fluidizing gas and evaporated water leaves the treatment zone 4.
- Fluidization and the continuous feed supply is continuously fed dried feedstock 1 via the overflow 7 in the second treatment zone 9 promoted. Both treatment zones are separated by the partition wall 8, the arrangement is concentric.
- the treatment zone 9 is fluidized with the aid of the fluidizing gas 10.
- the temperature of the fluidizing gas 10 may be adjusted according to the desired treatment. If, for example, a torrefaction of the feedstock 1 is desired, then the temperature of the fluidizing gas 10 is selected such that an average temperature of the fluidized bed in the treatment zone 9 of e.g. 250 ° C.
- the exhaust gas 11 from the fluidizing gas 10 and the gaseous components released during the torrefaction leaves the treatment zone 9.
- the treated product 13 is withdrawn at the bottom of the treatment zone 9 with a discharge screw 12.
- FIG. 2 shows, analogously to FIG. 1, a two-stage device.
- the bottom of the treatment zone 4 as well as the wall of the reactor 3 is conical.
- Figure 3 shows a device according to the invention with three concentric treatment zones 4, 16 and 9, which are each fluidized individually.
- Figure 4 shows a device according to the invention with three concentric treatment zones 4, 16 and 9, which are each provided with a separate fluidizing gas supply.
- the treatment zones 4 and 16 are themselves divided into zones by means of an underflow weir 22.
- the fluidized solid must first pass the underflow weir 22, before the partition 8, as
- Overflow weir is designed, in the next treatment zone 9 or 16 passes.
- Dust separator 18 is shown in FIG. 4 by way of example as a filter with backwashing gas 21 required for this purpose, but it can also be used, for example, as a filter. be executed as a cyclone, electrostatic precipitator or other dust separator according to the prior art.
- the dust 19 removed from the gas is advantageously recycled, as shown, and returned to the reactor with the feedstock. Not shown is also a further advantageous variant, to supply the dust 19 directly to the product stream 13.
- FIG. 5 shows a further advantageous embodiment of the invention.
- the dividing walls which form the underflow weirs 22 are extended in the treatment zones up to the reactor head. This will be the
- One or more of the sub-streams may also be used to deliver the fluidizing gas 10 to another treatment zone. It would be advantageous, for example, to recirculate the exhaust gas 11 withdrawn from the central treatment zone 9 and to supply the fluidizing gas 5 or 14 at least partially. This would be a renewed depending on the temperature level
- FIG. 6 shows a further advantageous embodiment of the invention.
- an optimized design of the overflow weir 8 is shown in FIG.
- the overflow weir 8 is provided with a recess 23 which forms the overflow 7 here.
- the particles fluidized in the treatment zone 4 are preferably at this lowest point of the overflow weir 8 in the next
- Recess 23 is arranged opposite the feed screw 2, whereby the residence time of the particles is considerably prolonged and residence time distribution is significantly uniformed.
- erfindungskonformer applies that the dimensions of the treatment zones can be selected individually as a function of the desired residence time of the respective treatment zone.
- the feed screw 2 promotes the treatment zone 4 from the outside, while the goal is to achieve a maximum residence time of the particles. That there are two configurations:
- Each treatment zone is subjected to individually tempered fluidizing gas.
- the reactor 3 and the dividing wall 8 are round, the addition of the fluidizing gas 5 and 10 can be such that within the treatment zones a twist within the fluidized bed and within each treatment zone is established.
- the outer wall of the reactor 3 can be designed as a double jacket and be acted upon with additional heating medium.
- the partition 8 can be carried out thermally conductive, so that between the
- Treatment zone 4 is dried and torrefiziert in the treatment zone 9, so heat transfer takes place from the inside to the outside.
- the bottom of the inner treatment zone can be conical and the discharge screw 12 can be designed as a cooling screw.
- Inert gas e.g. Nitrogen or carbon dioxide or mixtures thereof
- the dedusted exhaust gas 20 can be mixed with fresh gas, ie flue gas, inert gas or air and reheated and finally the apparatus supplied as a fluidizing gas.
- the design of the gas distributor floor can be made so that each
- Treatment zone is provided with its own gas distributor.
- Nozzle bottom variant 1 advantageous: In Figure 1, a flat gas distributor plate is shown for the treatment zone 4. In this case, one would be in the
- Fluid bed technique of conventional "open" nozzle bottom recommend over the solids can be pulled down, e.g. in case of foreign matter, or in case of planned emptying at standstill.
- An "open" nozzle bottom is also recommended if it is a total conical bottom, as shown in Figures 2 to 5.
- Nozzle bottom variant 2 Here, a total conical bottom over all gas distributors is shown. In the case of a necessary emptying flaps can be provided in the wall 8, so that the entire solid can get into the inner treatment zone 9 and can be discharged there via the central discharge.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010018219A DE102010018219A1 (de) | 2010-04-23 | 2010-04-23 | Vorrichtung und Verfahren zur thermischen Vorbehandlung von festen Einsatzstoffen in einer konzentrisch gestuften Wirbelschicht |
PCT/EP2011/001627 WO2011131287A1 (de) | 2010-04-23 | 2011-03-31 | Vorrichtung und verfahren zur thermischen vorbehandlung von festen einsatzstoffen in einer konzentrisch gestuften wirbelschicht |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2560750A1 true EP2560750A1 (de) | 2013-02-27 |
Family
ID=44168243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11714489A Withdrawn EP2560750A1 (de) | 2010-04-23 | 2011-03-31 | Vorrichtung und verfahren zur thermischen vorbehandlung von festen einsatzstoffen in einer konzentrisch gestuften wirbelschicht |
Country Status (12)
Country | Link |
---|---|
US (1) | US20130036622A1 (ru) |
EP (1) | EP2560750A1 (ru) |
KR (1) | KR20130069636A (ru) |
CN (1) | CN102821840A (ru) |
AU (1) | AU2011244737A1 (ru) |
BR (1) | BR112012026738A2 (ru) |
CA (1) | CA2794213A1 (ru) |
DE (1) | DE102010018219A1 (ru) |
RU (1) | RU2012146437A (ru) |
TW (1) | TW201200238A (ru) |
UA (1) | UA106787C2 (ru) |
WO (1) | WO2011131287A1 (ru) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102585863B (zh) * | 2012-02-21 | 2014-01-15 | 西峡龙成特种材料有限公司 | 筒套型煤物质分解装置 |
JP6187315B2 (ja) * | 2014-02-28 | 2017-08-30 | 三菱マテリアル株式会社 | 流動仮焼炉 |
US9656231B2 (en) * | 2014-12-30 | 2017-05-23 | Bic Technologies Group, Llc | Continuous production of titanium tetrachloride from titanium-bearing slags |
CN111389314B (zh) * | 2020-03-31 | 2020-12-11 | 南京延长反应技术研究院有限公司 | Px生产pta的内置微界面机组强化反应系统及工艺 |
CN111569814B (zh) * | 2020-03-31 | 2021-07-09 | 南京延长反应技术研究院有限公司 | Px生产pta的外置微界面机组强化氧化系统 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2502953A (en) * | 1946-03-09 | 1950-04-04 | Standard Oil Dev Co | Process and apparatus for contacting solid particles and gaseous fluid |
US2758066A (en) * | 1951-09-11 | 1956-08-07 | Standard Oil Co | Conversion and catalyst stripping systems |
US2889219A (en) * | 1956-12-28 | 1959-06-02 | Inland Steel Co | Control method and apparatus for iron ore reduction process |
DE1287916B (ru) * | 1964-01-21 | 1969-01-23 | ||
US3826738A (en) * | 1972-03-23 | 1974-07-30 | F Zenz | Folded transfer line reactor |
US3782913A (en) * | 1972-03-23 | 1974-01-01 | Us Interior | Two-stage gasification of coal with forced reactant mixing and steam treatment of recycled char |
US3902990A (en) * | 1974-03-18 | 1975-09-02 | Exxon Research Engineering Co | Catalyst regeneration process and apparatus |
SE414373B (sv) * | 1977-06-23 | 1980-07-28 | Enerchem Ab | Sett och apparat for genomforande av kemiska och/eller fysikaliska processer i fluidiserad bedd |
US5264196A (en) * | 1984-10-15 | 1993-11-23 | Mitsubishi Materials Corporation | Multichamber type fluid bed reaction apparatus and method |
CN2055503U (zh) * | 1989-07-08 | 1990-04-04 | 清华大学 | 新型单级流化床粉煤气化炉 |
US5260034A (en) * | 1992-04-24 | 1993-11-09 | Shell Oil Company | Stage catalyst concentric annular stripper |
US5615493A (en) * | 1994-03-11 | 1997-04-01 | Niro Holding A/S/ | Spray drying device |
NL1000611C2 (nl) * | 1995-06-20 | 1996-12-23 | Stork Friesland Bv | Inrichting, alsmede werkwijze voor het bereiden van een gesproeidroogd produkt. |
FI101156B (fi) * | 1996-08-30 | 1998-04-30 | Fortum Oil Oy | Kiertomassareaktoriin perustuva menetelmä ja laite hiilivetyjen konver toimiseksi |
FI101133B (fi) * | 1996-08-30 | 1998-04-30 | Fortum Oil Oy | Laitteisto kemiallisiin ja fysikaalisiin prosesseihin |
-
2010
- 2010-04-23 DE DE102010018219A patent/DE102010018219A1/de not_active Ceased
-
2011
- 2011-03-31 CA CA2794213A patent/CA2794213A1/en not_active Abandoned
- 2011-03-31 EP EP11714489A patent/EP2560750A1/de not_active Withdrawn
- 2011-03-31 KR KR1020127030476A patent/KR20130069636A/ko not_active Application Discontinuation
- 2011-03-31 UA UAA201211279A patent/UA106787C2/ru unknown
- 2011-03-31 RU RU2012146437/05A patent/RU2012146437A/ru not_active Application Discontinuation
- 2011-03-31 AU AU2011244737A patent/AU2011244737A1/en not_active Abandoned
- 2011-03-31 BR BR112012026738A patent/BR112012026738A2/pt not_active IP Right Cessation
- 2011-03-31 WO PCT/EP2011/001627 patent/WO2011131287A1/de active Application Filing
- 2011-03-31 US US13/640,761 patent/US20130036622A1/en not_active Abandoned
- 2011-03-31 CN CN2011800165653A patent/CN102821840A/zh active Pending
- 2011-04-21 TW TW100113874A patent/TW201200238A/zh unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2011131287A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2794213A1 (en) | 2011-10-27 |
WO2011131287A1 (de) | 2011-10-27 |
UA106787C2 (ru) | 2014-10-10 |
DE102010018219A1 (de) | 2011-10-27 |
KR20130069636A (ko) | 2013-06-26 |
US20130036622A1 (en) | 2013-02-14 |
AU2011244737A1 (en) | 2012-10-11 |
RU2012146437A (ru) | 2014-05-27 |
TW201200238A (en) | 2012-01-01 |
BR112012026738A2 (pt) | 2017-10-10 |
CN102821840A (zh) | 2012-12-12 |
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