WO2015007365A1 - Method for gasifying carbon-containing solids using gaseous oxygen-containing gasification agents in a fluidized bed process in a gasifier, in particular in a high-temperature winkler gasifier - Google Patents
Method for gasifying carbon-containing solids using gaseous oxygen-containing gasification agents in a fluidized bed process in a gasifier, in particular in a high-temperature winkler gasifier Download PDFInfo
- Publication number
- WO2015007365A1 WO2015007365A1 PCT/EP2014/001789 EP2014001789W WO2015007365A1 WO 2015007365 A1 WO2015007365 A1 WO 2015007365A1 EP 2014001789 W EP2014001789 W EP 2014001789W WO 2015007365 A1 WO2015007365 A1 WO 2015007365A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gasifier
- carburetor
- pressure vessel
- fluidized bed
- reaction chamber
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
- C10J3/503—Fuel charging devices for gasifiers with stationary fluidised bed
Definitions
- Fluidized bed gas process in a gasifier especially in a
- the invention relates to a method for gasifying carbonaceous solids with gaseous, oxygen-containing gasification agents in a fluidized bed gas process in a gasifier, in particular in a high temperature Winkler gasifier (HTW), in which the carbonaceous solids introduced into the reaction chamber of a gasifier and in a fluidized fluidized bed the gasifier are gasified, wherein at least a portion of the entrained in the gas generated Feststoffmaschineheh is deposited and returned to the reaction space.
- HMW high temperature Winkler gasifier
- the invention relates to a system for carrying out the method.
- the carbonaceous fuels are gasified after entering the reaction chamber of the gasifier in a fluidized fluidized bed at temperatures between 700 ° and 1300 ° C and under an elevated pressure, using endothermic and exothermic gasification agents.
- a Nachvergasungsraum Above and below the fluidized fluidized bed are a Nachvergasungsraum and a moving bed, are deducted from the gasification residues. From the Nachvergasungsraum the gas generated is fed to a separator.
- An essential feature of the high-temperature Winkler method is that a portion of the entrained in the gas produced particulates are deposited in the separator and recycled via a return line in the reaction chamber of the gasifier, whereas the freed from the solid particles synthesis gas leaves the separator.
- the carbonaceous solids may be, for example, biomass, recyclable material, plastic or coal, etc.
- entry slugs or pneumatically operated entry organs are used to enter this feed in the operated under pressure reaction space of the high-temperature Winkler carburetor.
- augers the feedstock is passed through a coal-spill system operated in the manner of a pressure-lock system by cone-shaped coal weighing and coal feed tanks, between which a coal-fired lock is interposed.
- the feed is transported via entry screws in the high-temperature Winkler carburetor.
- a disadvantage of this technique of entry is that the electric motor driven entry augers have only a limited capacity, so that usually several augers must be used to quickly and sufficiently convey the feedstock in the carburetor.
- the electric motors are characterized by the associated with the promotion of the feed heat development by a low vulnerability and the seal to the atmosphere, especially at high operating ⁇ pressure, is difficult.
- the feedstock is carried and carried by a flowing gas, wherein the gas flow is effected by a pressure difference between the beginning and end of the feedstock and the gas transporting transport line.
- this method has the disadvantage that for the assembly of the carburetor with the feed very large amounts of gas are needed, which in turn is associated with no small cost and with no small design effort for storage and supply of the gas.
- this object is achieved according to the invention in that the carbonaceous solids are introduced pneumatically with dense phase promotion in the carburetor.
- the feed material is conveyed pneumatically in the form of a higher solids mass flow.
- dense phase conveying such as less susceptibility to sticky or moist goods to be transported, low energy costs due to lower compressor performance and reduced abrasion of the transported goods.
- development work in the context of the invention have also shown that the feed of the feed into a high temperature Winkler carburetor by means of a pneumatic dense phase conveying has the advantage that larger amounts of inert gas than in the screw conveyor and much lower amounts of inert gas than in the pneumatic conveying in the fluidized fluidized bed of the gasifier can be brought without this amount of gas impairs the characteristic fluidized fluidized bed.
- this gas can be used simultaneously as a fluidizing gas.
- the design effort can be reduced, since it can be dispensed with a storage tank, which is preceded by the carburetor in the case of coal screws and a pneumatic conveying.
- an advantageous embodiment of the invention provides that the carbonaceous solids are fluidized at the outlet of the pressure vessel.
- the invention provides a system with at least the following components: a pressure vessel of a pneumatic dense phase conveying system,
- the basic idea in the design of the system according to the invention is to connect the pressure vessel of a pneumatic dense phase conveying system via a conveying line, which may also be a component of a pneumatic dense phase conveying system, with the HTW carburetor.
- a conveying line which may also be a component of a pneumatic dense phase conveying system
- the carbonaceous materials are introduced pneumatically with dense phase conveying and directly into the carburettor without having to interpose further devices, such as a feed tank, between the pressure vessel and the HTW carburettor.
- a practicable variant of the invention provides that at least two delivery lines lead into the gasifier.
- the delivery line In order to run the promotion using gravity, it is expedient that the delivery line is led directly in front of the carburetor at an angle obliquely down into the fluidized bed. In this case, preferably, the delivery line should open into a diagonal pipe. The slope can be less than 90 ° relative to the horizontal.
- Fig. 1 is a conventional, multi-stage process for the feed
- Fig. 3 shows a system according to the invention for carrying out the inventive method ⁇ . 1 shows a conventional multistage process for charging a reaction space 3 of a carburetor in the form of a high-temperature Winkler carburettor 2.
- the process begins with the feedstock 2a to the pressure-lock system 6, consisting of the conical coal weighing container 7, the cone-shaped coal lock 8 and the cone-shaped coal feed tank 9, is supplied.
- About the screw conveyors 11 metered by the Dosierzellenrades 10 feed 2a is added from the coal reservoir 9 in the coal feed screw I Ia to carry the feed 2a in metered and controlled manner in the reaction chamber 3 of the high-temperature Winkler carburetor 2.
- a helical tube 16 is used instead of the screws 11, I Ia.
- the feedstock 2a ie the carbonaceous fuels such as biomass, coal, etc.
- the gas generated in this case is supplied to the separator 4, wherein a portion of the entrained in the gas generated particulate matter is deposited in the separator 4 and returned via the return line 5 in the reaction chamber 3 of the carburetor 2.
- the synthesis gas freed from the solid particles leaves the separator 4.
- gasification residues are withdrawn from the fixed bed via the lines 14, 15.
- the feedstock 2a ie the carbonaceous solids
- the feedstock 2a pneumatically with dense phase conveying 3a in the reaction chamber 3 of the high-temperature Winkler carburetor 2, in erfindungschert Anlagen way brought in.
- the feedstock 2a is transported through a delivery line 12, which is connected to a pressure vessel, not shown in FIG. is to be found dense current flow system is connected.
- the delivery line 12 passes directly in front of the carburetor 2 in a helical tube 13, which in turn opens into the reaction chamber 3 of the high-temperature Winkler carburetor 2.
- FIG. 3 shows the system for carrying out the method shown in FIG. 2.
- This consists essentially of a pressure vessel 17, as it is known from a conventional pneumatic dense phase conveying system, a delivery line 12 and a high-temperature Winkler carburetor 2 together.
- the pressure vessel 17 In the upper region of the pressure vessel 17 there is an entry 18, through which the feedstock 2a is introduced into the pressure vessel 17.
- the pressure vessel 17 also in its lower portion Fluidisiergas matlassö réelleen 19, 20, 21, 22 in the form of a Fluidisierkonus with porous material (such as sintered metal) or from nozzles to fluidizing gas in the pressure vessel 17 feed.
- the fluidizing gas serves to fluidize the conveyed material conveyed in the delivery line 12, i. the carbonaceous solids that are provided for the gasification in the reaction space 3 of the high-temperature Winkler carburetor 2.
- the delivery line 12 between pressure vessel 17 and high-temperature Winkler carburetor 2 opens into the inclined tube 13.
- the present invention is not limited in its execution to the embodiments given above. Rather, a number of variants is conceivable, which make use of the solution shown in other types.
- the system according to the invention may also have a plurality of delivery lines 12, which are arranged between the pressure vessel 17 and the high-temperature Winkler carburetor 2 and open into the carburetor 2, Registered list:
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480040748.2A CN105378038A (en) | 2013-07-17 | 2014-06-30 | Method for gasifying carbon-containing solids using gaseous oxygen-containing gasification agents in a fluidized bed process in a gasifier, in particular in a high-temperature winkler gasifier |
BR112016001004-3A BR112016001004B1 (en) | 2013-07-17 | 2014-06-30 | METHOD TO GASIFY SOLID CARBON-CONTENT MATERIALS USING GASEOUS OXYGEN CONTAINING GASIFICATION AGENTS IN A FLUIDIZED BED PROCESS IN A GASIZER, AND IN PARTICULAR, IN A HIGH TEMPERATURE WINKLER GASIZER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013107592.4A DE102013107592B4 (en) | 2013-07-17 | 2013-07-17 | Process for the gasification of solids containing carbon with gaseous, oxygen-containing gasification agents in a fluidized bed gas process in a high-temperature Winkler gasifier |
DE102013107592.4 | 2013-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015007365A1 true WO2015007365A1 (en) | 2015-01-22 |
Family
ID=51162687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/001789 WO2015007365A1 (en) | 2013-07-17 | 2014-06-30 | Method for gasifying carbon-containing solids using gaseous oxygen-containing gasification agents in a fluidized bed process in a gasifier, in particular in a high-temperature winkler gasifier |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN105378038A (en) |
BR (1) | BR112016001004B1 (en) |
DE (1) | DE102013107592B4 (en) |
WO (1) | WO2015007365A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2634670A1 (en) * | 1976-08-02 | 1978-02-09 | Davy Bamag Gmbh | Simultaneous gasification of liquid and solid feeds - in a fluidised bed gasifier |
US4200494A (en) * | 1974-12-27 | 1980-04-29 | Union Carbide Corporation | Method of preventing defluidization of carbonaceous particles |
DE4340459C1 (en) * | 1993-11-27 | 1995-05-18 | Rheinische Braunkohlenw Ag | Process for operating fluidised bed reactor |
US20070074643A1 (en) * | 2005-10-04 | 2007-04-05 | Future Energy Gmbh | Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier |
US20070079554A1 (en) * | 2005-10-07 | 2007-04-12 | Future Energy Gmbh | Method and device for high-capacity entrained flow gasifier |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3136645A1 (en) * | 1981-09-16 | 1983-03-24 | Bergwerksverband Gmbh, 4300 Essen | METHOD FOR DOSING, IN PARTICULAR BAKING, FUELS IN A FLUIDIZED LAYER REACTOR, AND METHOD FOR OPERATING SUCH A DEVICE |
DE3240384A1 (en) * | 1982-11-02 | 1984-05-03 | Rheinische Braunkohlenwerke AG, 5000 Köln | METHOD AND DEVICE FOR GASIFYING RESIDUES FROM THE HYDRATING LIQUIDATION OF COAL IN A FLUID BED OR FLOW CURRENT CARBURETTOR |
EP0634471A1 (en) * | 1993-07-12 | 1995-01-18 | M. W. Kellogg Company | Coal gasification and sulfur removal process |
CN2180643Y (en) * | 1994-01-27 | 1994-10-26 | 中国科学院山西煤炭化学研究所 | Gasification device for ash smelting fluidized bed |
DE4413923C2 (en) * | 1994-04-21 | 2001-11-29 | Rheinische Braunkohlenw Ag | Method for generating synthesis and / or fuel gas in a high-temperature Winkler gasifier |
CN2740609Y (en) * | 2004-09-10 | 2005-11-16 | 陕西秦能天脊科技有限公司 | Powdery coal gasifier of pressurized selecting ash-ejecting fluidized bed |
CN101240196B (en) * | 2007-02-07 | 2011-08-17 | 中国科学院工程热物理研究所 | Fine coal pressurization dense phase transporting bed gasification method and device |
DE102009036973A1 (en) * | 2009-08-12 | 2011-02-17 | Uhde Gmbh | Method for supplying an entrained flow gasification reactor with carbonaceous fuels |
-
2013
- 2013-07-17 DE DE102013107592.4A patent/DE102013107592B4/en active Active
-
2014
- 2014-06-30 WO PCT/EP2014/001789 patent/WO2015007365A1/en active Application Filing
- 2014-06-30 CN CN201480040748.2A patent/CN105378038A/en active Pending
- 2014-06-30 BR BR112016001004-3A patent/BR112016001004B1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4200494A (en) * | 1974-12-27 | 1980-04-29 | Union Carbide Corporation | Method of preventing defluidization of carbonaceous particles |
DE2634670A1 (en) * | 1976-08-02 | 1978-02-09 | Davy Bamag Gmbh | Simultaneous gasification of liquid and solid feeds - in a fluidised bed gasifier |
DE4340459C1 (en) * | 1993-11-27 | 1995-05-18 | Rheinische Braunkohlenw Ag | Process for operating fluidised bed reactor |
US20070074643A1 (en) * | 2005-10-04 | 2007-04-05 | Future Energy Gmbh | Method and device for the regulated feed of pulverized fuel to an entrained flow gasifier |
US20070079554A1 (en) * | 2005-10-07 | 2007-04-12 | Future Energy Gmbh | Method and device for high-capacity entrained flow gasifier |
Also Published As
Publication number | Publication date |
---|---|
BR112016001004B1 (en) | 2021-06-15 |
BR112016001004A8 (en) | 2019-10-01 |
DE102013107592B4 (en) | 2023-03-23 |
CN105378038A (en) | 2016-03-02 |
DE102013107592A1 (en) | 2015-01-22 |
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