EP0716138B1 - Anlage für die Druckvergasung von feinteiligen Brennstoffen im Zuge der Erzeugung eines Produktgases - Google Patents
Anlage für die Druckvergasung von feinteiligen Brennstoffen im Zuge der Erzeugung eines Produktgases Download PDFInfo
- Publication number
- EP0716138B1 EP0716138B1 EP94117069A EP94117069A EP0716138B1 EP 0716138 B1 EP0716138 B1 EP 0716138B1 EP 94117069 A EP94117069 A EP 94117069A EP 94117069 A EP94117069 A EP 94117069A EP 0716138 B1 EP0716138 B1 EP 0716138B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- heat exchanger
- quench
- mixing tube
- flow
- 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 - Lifetime
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
-
- 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
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
-
- 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
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1861—Heat exchange between at least two process streams
- C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
Definitions
- the invention relates to a system for pressure gasification of fine-particle fuels in the course of generating a Product gas, - with a gasification reactor and Quench apparatus for the exiting from the gasification reactor Raw gas, the quench apparatus being a mixing tube and a Mixing tube surrounding gas cooling heat exchanger with a Device for feeding an externally supplied Has gas flow and which from the gas cooling heat exchanger emerging gas stream as quench gas with the raw gas enters the mixing tube.
- the quench apparatus cools it Raw gas to a temperature at which the raw gas from the Gasification reactor entrained molten slag particles solidify so that they do not form deposits, but can be carried out.
- the quench apparatus Generally done for the systems of the described structure and the specified Purpose in the quench apparatus to cool down a temperature of around 850 ° C.
- the known system of the type mentioned at the outset (EP 0 171 351), from which the invention is based, has a gas cooling heat exchanger with an annular gap on the Cooling gas is supplied from the outside.
- the flow cross section of the annular space through which the cooling gas flows is in the Ratio to the cross section of the mixing tube small.
- the Cooling gas enters the mixing tube at the lower end and flows through the mixing tube in the form of a ring flow close to the wall, the solid-free cooling gas is intended to prevent that sticky particles from the raw gas onto the wall of the Impact the mixing tube and cause caking there.
- the cooling gas emerging from the annulus exclusively from an external gas supplied from the outside Prevent caking on the inner surface of the mixing tube should.
- the cooling effect through additional jacket cooling of the mixing tube get supported.
- the cooling of the raw gas in the mixing tube the known system is in need of improvement.
- the cooling gas ring flow close to the wall also prevents effective heat transfer from one cooled wall surface of the mixing tube on the raw gas.
- PatG ⁇ 3 (2) In another known system (P 43 10 447.9, PatG ⁇ 3 (2)) is the mixing tube of the quench apparatus in the direction of flow of the raw gas upstream or downstream of a radiant heat exchanger arranged. It is from a heat exchanger not surrounded for the quench gas. As a quench gas Part stream of the cooled product gas used, which with Injectors is drawn, which in turn with a partial flow of the gas operated from a convection heat exchanger exit.
- the invention is based on the technical problem Quench apparatus within a plant of the type mentioned Way to improve so that a very effective and quick Cooling of the hot emerging from the gasification reactor Raw gas is guaranteed within the mixing tube, and although with low energy requirements for the quench process.
- the invention teaches to solve this technical problem a system of the type described above, which thereby is characterized in that the gas cooling heat exchanger the gas inlet surface surrounding the outlet of the mixing tube in a ring has, through which a partial flow of the with Quench gas mixed raw gas occurs that the flow cross sections both the mixing tube and the gas cooling heat exchanger are so dimensioned that gas flow velocities in the range of 3 to 20 m / s adjust that the gas supplied by the device as a propellant in the flow direction of the gas cooling heat exchanger flowing gas stream and with a Flow speed of more than 40 m / s in the gas cooling heat exchanger occurs and that the device for LPG feed a device for controlling the Has propellant gas flow as well as through this facility the partial flow of the raw gas mixed with quench gas and the cooling of which can be controlled to the quench temperature.
- the Gas cooling heat exchanger concentrically surrounds the mixing tube.
- a quadrangular or polygonal shape of the Mixing tube with parallel to the walls of the mixing tube arranged heat exchanger surfaces is possible.
- a preferred embodiment of the invention is in this Connection characterized in that the gas cooling heat exchanger a plurality of hollow cylindrical heat exchanger walls has a radial distance from each other are arranged and the partial flow of the quench gas mixed raw gas into cylinder layer streams.
- the Heat exchanger walls can be membrane walls, pipes or the like be. It is understood that the device for Propellant feed also surrounds the mixing tube, e.g. B. a plurality of circumferentially distributed driving nozzles having.
- the motive current of the mixed with the quench gas Raw gas is distributed symmetrically around the axis of the Mixing tube. This also applies to the quench gas on entry in the mixing tube and in the gas cooling heat exchanger, in which the mixture of the raw gas and the quench gas enters. This mixture can be in the gas cooling heat exchanger from Flow down or up from the top. Of the Flow path from top to bottom is advantageous because solidified melt particles are discharged downwards can.
- the invention is based on the knowledge that Mixing tube of a quench apparatus in a plant of the construction described at the beginning without difficulty and without any special effort from a gas cooling heat exchanger can be surrounded by the exiting from the mixing tube Raw gas with its temperature of about 850 ° C, the this raw gas is achieved by introducing the quench gas has a low enough for the quench process Temperature can be cooled.
- the propellant can Control the quench process and contribute to cooling.
- the device a device for controlling the Has propellant gas flow and this submission the partial flow of the raw gas mixed with the quench gas and its cooling are controllable. It can also do that happen that the device for propellant gas supply a supply device for cooled product gas connected and can be operated with cooled product gas.
- the Device for feeding gas in the area of Gas inlet of the gas cooling heat exchanger can be arranged, but it can also in the area of the gas outlet of the Gas cooling heat exchanger can be arranged.
- the Gas flow direction behind at least one of the quench apparatus downstream heat exchanger with another mixing tube surrounding gas cooling heat exchanger and device for LPG feed and partial flow branch from the Mixture of raw gas and quench gas is arranged.
- the system according to the invention there is no problem Possibility to in the gasification reactor and the quench apparatus to arrange a common pressure vessel one above the other.
- the system according to the invention is in relation to the Arrangement of the gasification reactor and the quench apparatus flexible.
- the gasification reactor and the quench reactor as well the quench reactor on the one hand and at least one downstream one Heat exchangers on the other hand can also be used in be independent pressure vessels arranged by Gas supply lines are connected. It can also in the Pressure vessel in which the gasification reactor and Quench apparatus are located, another heat exchanger arranged be.
- the system shown in Fig. 1 is for pressure gasification of fine-particle fuels in the course of production of a product gas determined.
- the basic structure include a gasification reactor 1, a quench apparatus 2 for the raw gas emerging from the gasification reactor 1 and downstream heat exchanger 3.
- the quench apparatus 2 may be a radiant heat exchanger, e.g. B. in the form of a high pressure steam heat exchanger, act in the direction of flow downstream heat exchanger 3 is a convection heat exchanger designed.
- the quench apparatus 2 has one Mixing tube 4 for mixing the raw gas entering it with a quench gas.
- Gas cooling heat exchanger 5 a plurality of hollow cylindrical Has heat exchanger walls 7 with radial Are spaced from each other and the partial flow of raw gas mixed with the quench gas in cylinder layer flows divides.
- the heat exchanger walls like Membrane walls or pipes.
- the a wide variety of propellant gases are worked, as far as these are compatible with the product gas.
- the Device 6 for propellant gas is in this way can be operated with cooled and cleaned product gas.
- the device 6 for propellant gas injection in the area of the gas outlet 9 of the Gas cooling heat exchanger 5 is arranged. But it could also be arranged in the area of the gas inlet 10. It could also be an additional in the area of gas inlet 10 Device 6 for propellant gas supply can be arranged. It was not shown that in addition to that described Quench apparatus 2 another behind a downstream Heat exchanger 3 can be arranged.
- Another pressure vessel is connected downstream 12 for another heat exchanger 3.
- the two Pressure vessels 11, 12 are via gas guide tubes 13 connected.
- the quench apparatus 2 and the device 6 for propellant gas injection allow a compact design.
- the printing and Energy losses are extremely small, just that Pressure losses in the mixing tube 4 and in the gas cooling heat exchanger 5 must be overcome.
- Sticky slag particles which brings the tube gas, solidify in the mixing tube 4 and thus before entering the gas cooling heat exchanger. Erosion phenomena, the particles carried in the quench gas produce are rare and relatively small because with low flow rates of this gas can be worked.
- a Tapping device 14 has been indicated.
- heat is extracted from the partial flow of the gas mixture from product gas and quench gas at a high temperature level, so that with small heat exchange surfaces and consequently with one compact gas cooling heat exchanger 5 can be worked can.
- Only one compressor 15 is used for the propellant gas relatively low power required.
- the mixing tube 4 becomes an almost balanced gas temperature in the area 600 ° C to 1300 ° C reached, with the entrained solidify molten particles.
- the quench gas emerges the gas cooling heat exchanger with a temperature of 200 ° C to 900 ° C. It can also be caused by the propellant gas Mixing tube 4 are supplied.
- the optimal speed of the gas in the mixing tube 4 and in the gas cooling heat exchanger 5 is 6-10 m / s. she can be in a relatively wide range of 3 - 20 m / s lie.
Description
- Fig. 1
- das Schema einer erfindungsgemäßen Anlage,
- Fig. 2
- im gegenüber der Fig. 1 wesentlich vergrößertem Maßstab den Ausschnitt A aus dem Gegenstand der Fig. 1.
Claims (6)
- Anlage für die Druckvergasung von feinteiligen Brennstoffen im Zuge der Erzeugung eines Produktgases, - miteinem Vergasungsreaktor (1) undeinem Quenchapparat (2) für das aus dem Vergasungsreaktor (1) austretende Rohgas,
dadurch gekennzeichnet, daß derGaskühlungswärmetauscher (5) eine den Austritt des Mischrohres (4) ringförmig umgebende Gaseintrittsfläche (10) aufweist, durch die ein Teilstrom des mit dem Quenchgas gemischten Rohgases eintritt,daß die Strömungsquerschnitte sowohl des Mischrohres (4) als auch des Gaskühlungswärmetauschers (5) so bemessen sind, daß sich Gasströmungsgeschwindigkeiten im Bereich von 3 bis 20 m/s einstellen,daß das durch die Vorrichtung (6) zugeführte Gas als Treibgas in Strömungsrichtung des den Gaskühlungswärmetauscher (5) durchströmenden Gasstroms und mit einer Strömungsgeschwindigkeit von mehr als 40 m/s in den Gaskühlungswärmetauscher (5) eintritt unddaß die Vorrichtung (6) zur Treibgaseinspeisung eine Einrichtung zur Steuerung des Treibgasmengenstroms aufweist sowie über diese Einrichtung der Teilstrom des mit Quenchgas gemischten Rohgases sowie dessen Kühlung auf Quenchtemperatur steuerbar sind. - Anlage nach Anspruch 1, dadurch gekennzeichnet, daß der Gaskühlungswärmetauscher (5) eine Mehrzahl von hohlzylindrischen Wärmetauscherwänden (7) aufweist, die mit radialem Abstand voneinander angeordnet sind und den Teilstrom des mit dem Quenchgas gemischten Rohgases in Zylinderschichtströme aufteilen.
- Anlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Vorrichtung (6) zur Treibgaseinspeisung an eine Zuführeinrichtung (8) für gekühltes Produktgas angeschlossen und mit gekühltem Produktgas betreibbar ist.
- Anlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dem Quenchapparat (2) in Strömungsrichtung des Rohgases Wärmetauscher (3) nachgeschaltet sind, wobei der Vergasungsreaktor (1), der Quenchapparat (2) sowie zumindest ein weiterer Wärmetauscher (3) in einem gemeinsamen Druckbehälter (11) übereinander angeordnet sind.
- Anlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dem Quenchapparat (2) in Strömungsrichtung des Rohgases Wärmetauscher (3) nachgeschaltet sind, wobei der Vergasungsreaktor (1) und der Quenchapparat (2) in einem Druckbehälter (11) und zumindest ein nachgeschalteter Wärmetauscher (3) in einem weiteren Druckbehälter (12) angeordnet sind, wobei die beiden Druckbehälter (11, 12) durch Rohrleitungen (13) verbunden sind.
- Anlage nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß in Gasströmungsrichtung hinter zumindest einem der dem Quenchapparat (2) nachgeschalteten Wärmetauscher (3) ein weiteres Mischrohr (4) mit umgebendem Gaskühlungswärmetauscher (5) und Vorrichtung zur Treibgaseinspeisung und Teilstromabzweigung aus dem mit dem Quenchgas gemischten Rohgas angeordnet ist.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59406983T DE59406983D1 (de) | 1994-10-28 | 1994-10-28 | Anlage für die Druckvergasung von feinteiligen Brennstoffen im Zuge der Erzeugung eines Produktgases |
EP94117069A EP0716138B1 (de) | 1994-10-28 | 1994-10-28 | Anlage für die Druckvergasung von feinteiligen Brennstoffen im Zuge der Erzeugung eines Produktgases |
ES94117069T ES2121132T3 (es) | 1994-10-28 | 1994-10-28 | Instalacion para la gasificacion a presion de combustibles finamente divididos en el curso de la generacion de un gas producto. |
JP7233641A JP2779339B2 (ja) | 1994-10-28 | 1995-09-12 | 生成ガスを生起させる過程で微粉状燃料を高圧気化させる装置 |
US08/531,032 US5824121A (en) | 1994-10-28 | 1995-09-20 | Apparatus for the pressure gasification of finely divided fuels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94117069A EP0716138B1 (de) | 1994-10-28 | 1994-10-28 | Anlage für die Druckvergasung von feinteiligen Brennstoffen im Zuge der Erzeugung eines Produktgases |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0716138A1 EP0716138A1 (de) | 1996-06-12 |
EP0716138B1 true EP0716138B1 (de) | 1998-09-23 |
Family
ID=8216416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94117069A Expired - Lifetime EP0716138B1 (de) | 1994-10-28 | 1994-10-28 | Anlage für die Druckvergasung von feinteiligen Brennstoffen im Zuge der Erzeugung eines Produktgases |
Country Status (5)
Country | Link |
---|---|
US (1) | US5824121A (de) |
EP (1) | EP0716138B1 (de) |
JP (1) | JP2779339B2 (de) |
DE (1) | DE59406983D1 (de) |
ES (1) | ES2121132T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003287604A (ja) * | 2002-03-27 | 2003-10-10 | Japan Science & Technology Corp | 光学レンズの製造方法および光ファイバコネクタの製造方法 |
CA2587637A1 (en) * | 2004-11-22 | 2006-05-26 | Shell Internationale Research Maatschappij B.V. | Apparatus for gasifying a fuel |
CA2731115A1 (en) * | 2007-07-17 | 2009-01-23 | Plasco Energy Group Inc. | A gasifier comprising one or more fluid conduits |
JP5734234B2 (ja) * | 2012-04-16 | 2015-06-17 | 三菱重工業株式会社 | ガス化装置 |
US10087837B2 (en) * | 2014-07-16 | 2018-10-02 | Iq Energy Inc. | Process for treating waste feedstock and gasifier for same |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3250601A (en) * | 1966-05-10 | Method for producing synthesis gas | ||
BE517947A (de) * | 1952-03-01 | |||
US3232726A (en) * | 1962-03-28 | 1966-02-01 | Pullman Inc | Quenching |
US3227527A (en) * | 1963-03-04 | 1966-01-04 | Universal Oil Prod Co | High temperature reactor |
US3414247A (en) * | 1966-06-07 | 1968-12-03 | Chemical Construction Corp | Synthesis gas quencher |
US4279622A (en) * | 1979-07-13 | 1981-07-21 | Texaco Inc. | Gas-gas quench cooling and solids separation process |
DE3427088A1 (de) * | 1984-07-18 | 1986-01-30 | Korf Engineering GmbH, 4000 Düsseldorf | Vorrichtung zum abkuehlen eines heissen produktgases |
DE3808729A1 (de) * | 1988-03-16 | 1989-10-05 | Krupp Koppers Gmbh | Verfahren und vorrichtung zur abkuehlung des aus einem vergasungsreaktor austretenden heissen produktgases |
DE3941591A1 (de) * | 1989-12-16 | 1991-06-20 | Caloric Ges Apparatebau | Verfahren und vorrichtung zur abkuehlung von co-reichem synthesegas |
US5106590A (en) * | 1990-05-11 | 1992-04-21 | Davy Mckee (London) Limited | Gas mixer and distributor with heat exchange between incoming gases |
DE9306050U1 (de) * | 1993-01-14 | 1993-06-24 | L. & C. Steinmueller Gmbh, 5270 Gummersbach, De | |
DE4310447A1 (de) * | 1993-03-31 | 1994-10-06 | Krupp Koppers Gmbh | Verfahren zur Kühlung von durch Vergasung gewonnenem Rohgas |
US5464597A (en) * | 1994-02-18 | 1995-11-07 | Foster Wheeler Energy Corporation | Method for cleaning and cooling synthesized gas |
-
1994
- 1994-10-28 ES ES94117069T patent/ES2121132T3/es not_active Expired - Lifetime
- 1994-10-28 EP EP94117069A patent/EP0716138B1/de not_active Expired - Lifetime
- 1994-10-28 DE DE59406983T patent/DE59406983D1/de not_active Expired - Fee Related
-
1995
- 1995-09-12 JP JP7233641A patent/JP2779339B2/ja not_active Expired - Lifetime
- 1995-09-20 US US08/531,032 patent/US5824121A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0716138A1 (de) | 1996-06-12 |
JP2779339B2 (ja) | 1998-07-23 |
JPH08302363A (ja) | 1996-11-19 |
DE59406983D1 (de) | 1998-10-29 |
ES2121132T3 (es) | 1998-11-16 |
US5824121A (en) | 1998-10-20 |
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