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EP0251005B1 - Gaskühler für Synthesegas - Google Patents

Gaskühler für Synthesegas Download PDF

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Publication number
EP0251005B1
EP0251005B1 EP87108572A EP87108572A EP0251005B1 EP 0251005 B1 EP0251005 B1 EP 0251005B1 EP 87108572 A EP87108572 A EP 87108572A EP 87108572 A EP87108572 A EP 87108572A EP 0251005 B1 EP0251005 B1 EP 0251005B1
Authority
EP
European Patent Office
Prior art keywords
gas
pressure vessel
flue
collectors
gas cooler
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
Application number
EP87108572A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0251005A1 (de
Inventor
Georg Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Management AG
Original Assignee
Gebrueder Sulzer AG
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of EP0251005A1 publication Critical patent/EP0251005A1/de
Application granted granted Critical
Publication of EP0251005B1 publication Critical patent/EP0251005B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1838—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines the hot gas being under a high pressure, e.g. in chemical installations
    • F22B1/1846—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines the hot gas being under a high pressure, e.g. in chemical installations the hot gas being loaded with particles, e.g. waste heat boilers after a coal gasification plant
    • 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
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment

Definitions

  • the invention relates to a gas cooler with the features of the preamble of claim 1.
  • Such a gas cooler is known from FR-OS 2 513 741, in which the gas-carrying duct is designed as a lining made of refractory material which is firmly connected to the pipe socket.
  • the clear cross section of the gas inlet formed in this way and the diameter of the pipe socket are so small that it is not possible to disassemble the inner gas duct through the gas inlet or the pipe socket.
  • the synthesis gas loaded with solid impurities occurs at a temperature of e.g. 1500 ° C and a pressure of about 40 bar at the top of the cooler and leaves it at about 700 ° C, for example.
  • the throttle cables are therefore exposed to considerable corrosion.
  • a gas cooler for synthesis gas in which only one gas flue in the pressure vessel is provided in which bulkhead heating walls formed from curved tubes are arranged as additional heating surfaces. To remove the heating surfaces from the pressure vessel, its cover is removably connected to the lower part of the vessel.
  • the invention has for its object to improve a gas cooler of the type mentioned in such a way that inspection, cleaning and repair work can be carried out on the gas cables in a simple and inexpensive manner, without significant additional costs for its production.
  • this object is achieved by the features of the characterizing part of claim 1.
  • the inner gas train can be pulled out of the pressure vessel through the pipe socket independently of the outer gas train, after which an optimal accessibility of the inner gas train and those exposed to the hot gases Inside of the outer throttle cable is reached.
  • the inner gas train and the individual parts forming the outer gas train can be designed such that they each have a weight of approximately 25 tons; a weight that can be managed with the lifting devices that are already present in every system of this type.
  • a particular advantage of the invention is that the order in which the accelerator cables are made available corresponds to the actual need: the most heavily used and therefore most frequently in need of cleaning and overhaul is the most easily accessible internal gas cable, which shows the inside of the outer gas cable second in terms of accessibility, and the least stressed outer side of the outer throttle cable, as well as the inner side of the pressure vessel, are finally accessible.
  • the invention also has the additional advantage that when the inner throttle cable is removed from the pressure vessel, its collectors are taken along, so that any necessary pressure and tightness tests can also take place outside the pressure vessel. In the embodiment according to claim 3, this is also the case with respect to the outer throttle cable.
  • the gas cooler for synthesis gas has a prismatic, vertical inner gas duct 1 and a likewise prismatic, vertical outer gas duct 2, which are arranged coaxially in a circular cylindrical, vertical pressure vessel 3.
  • the gas passages 1 and 2 are formed from straight wall pipes 5 and 5 'running in the longitudinal direction of the gas passages, welded to one another in a gas-tight manner by means of webs 4 and through which water or steam flows.
  • a pipe socket 6 is attached coaxially with the gas cables 1 and 2.
  • a horizontal gas outlet connection 7 which penetrates the pressure vessel 3 and opens into the annular space between the two gas ducts 1, 2.
  • the inner throttle cable 1 opens into the annular space at its lower end.
  • the inner throttle cable 1 and the outer throttle cable 2 each have a regular, octagonal cross-section delimited by eight walls and are rotated by 22.5 ° to each other so that the largest possible cross-sectional area is available in the annulus between the two gas cables 1 and 2 for inspection purposes .
  • the wall pipes 5 each of a wall of the inner gas duct 1 open at the bottom into an inner distributor (inlet collector) 11 which is supplied with water via a horizontal first water line 13 which penetrates the pressure vessel 3 and the outer gas duct 2.
  • the wall tubes 5 of the inner throttle cable 1 each have an inward radial direction extending, deformation-absorbing C-shaped bend and open into eight inner collectors (outlet collectors) 12; one for each wall.
  • Each collector 12 is connected to a steam consumer (not shown) via a first steam line 14 penetrating the pressure vessel 3.
  • the wall pipes 5 'of the outer throttle cable 2 form a funnel, which they leave radially at the bottom, along a horizontal plane, and open into eight, one for each wall, outer manifolds (inlet collectors) 21.
  • Each outer distributor 21 is supplied with water via a horizontal, second water pipe 23 which pierces the pressure vessel.
  • the wall pipes 5 'of the outer throttle cable 2 open into eight collectors (outlet collectors) 22, likewise one per wall, each of which via a second steam line 24, like the inner collector 12, penetrating the pressure vessel 3, with one not shown Steam consumer is connected.
  • the inner gas cable 1 and the outer gas cable 2 are suspended independently of one another on the pressure vessel 3 by means of tie rods 8 and 8 '.
  • the tie rods 8 of the inner throttle cable 1 are each fastened to a detachable support element 15, which is connected by means of horizontal screws (not shown in FIG. 3) to a support 15 'welded to the wall of the pressure vessel 3 and to the pipe socket 6.
  • each tie rod 8 'of the outer throttle cable 2 is connected to a support element 25 welded directly onto the wall of the pressure vessel 3.
  • Adjusting nuts 16 allow simple adjustment of the tie rods 8, 8 'on the support elements 15 or 25.
  • d1 the largest horizontal extent of the inner throttle cable 1 is designated d1.
  • d2 the smallest, in the interior of its upper range measurable horizontal extent is the distance between two parallel headers 22, which is denoted by d2 in Fig. 1.
  • d3 the inner diameter of the pipe socket 6 is denoted by d3. Both d2 and d3 are chosen larger than d1, so that the inner throttle cable 1 can easily be lifted out of the gas cooler by means of a hoist 18 shown only symbolically in FIG. 1.
  • a gasification reactor 30 is detachably connected to the pipe socket 6 by means of a flange connection.
  • the interior of the gasification reactor 30 is in continuous communication with the interior of the first gas flue 1 via a gas-conducting channel 10 arranged coaxially with the pipe socket 6.
  • the channel 10 has a high heat resistance and heat insulating effect and is preferably made of a thin steel tube, which is lined with a thick insulating layer 10 ', which consists for example of a ramming compound.
  • the pressure vessel 3 In its lower area, the pressure vessel 3 forms a water bath 40 and is connected via a purification connection 41 to devices for the treatment of heavily soiled hot water, not shown. Fresh water is fed into the water bath 40 via a water supply line 42.
  • a vertical dip tube 43 coaxial with the throttle cables 1, 2, preferably carried by the outer throttle cable 2, extends from the latter into the water bath.
  • the eight vertical walls forming the outer throttle cable 2 are detachably connected to one another.
  • the outside Distributor 21 and the outer header 22 are firmly connected to the wall pipes 5 'of the outer throttle cable 2. It is therefore possible with relatively little effort to divide the outer throttle cable 2 into eight individual walls with associated collectors and distributors, which can be lifted out of the interior of the pressure vessel 3 through the pipe socket 6. Since the need for such work arises only exceptionally, and then only rarely for all walls at the same time, these are normally welded to one another with relatively thin, easily removable weld seams 17 (FIG. 4). Screw connections are also possible instead of the weld seams 17.
  • the gas cooler works as follows: Hot synthesis gas flows out of the gasification reactor 30 through the channel 10 into the interior of the inner gas flue 1. This is thus flowed through from top to bottom, heat from the synthesis gas radiating onto the wall pipes 5. In the lower area of the funnel, the synthesis gas is diverted into the interior of the second throttle cable 2 and now flows from bottom to top through the annular space between the inner gas cable 1 and the outer gas cable 2, thereby to the wall pipes 5 of the inner gas cable 1 and also to the Radiating wall pipes 5 'of the outer throttle cable 2. A substantial amount of the impurities carried by the synthesis gas settles during the flow described, partly on the water bath 40 and partly first on the surfaces of the gas passages 1 and 2, from where they flow into the bath 40.
  • the steam reaches consumers via the first and second steam lines 14 and 24, respectively.
  • the cooled synthesis gas leaves the gas cooler via the gas outlet connection 7.
  • the area located above the connection 7 between the inner gas train 1 and the outer gas train 2 and the pressure vessel 3 are filled with stagnant synthesis gas, with some heat being emitted through the outer wall of the outer gas train 2 this is dissipated. In this way, a certain pressure equalization occurs between the inside and outside of each throttle cable within the pressure vessel 3, so that these can be designed for relatively small pressure differences and only the pressure vessel 3 is stressed by the high internal pressure.
  • the gasification reactor 30 and the channel 10 are removed, thereby clearing the way for lifting the inner throttle cable 1.
  • This is then suspended from the hoist 18, after which the detachable support elements 15 are removed and the connections to the water pipes 13 (flange 13 ') and to the steam pipes 14 (flange 14') are released.
  • the inner throttle cable 1 can now be lifted out of the gas cooler through the pipe socket 6 and transported to a work station. Both the accelerator cable 1 and the interior of the second accelerator cable 2 are now easily accessible. The fact that the distributor 11 and the collector 12 with the inner throttle cable 1 are transported together, the throttle cable 1 can be tested for pressure and tightness before reinstallation.
  • the outer gas cable 2 can be completely or partially - after sanding the weld seams 17 between its walls - disassembled into individual walls which are then lifted out of the pressure vessel 3 with the aid of the lifting device 18 and transported to a work station.
  • the distributor 21 and collector 22 carried along can then be used to carry out any pressure and tightness tests before reinstallation.
  • the described embodiment of the gas cooler is preferred in practice because of its characteristic gas flow, because this results in advantageous conditions for separating the contaminants carried by the gas.
  • the vertical tie rods 8 of the inner throttle cable 1 not only result in considerably smaller mechanical stresses within the gas cooler, but also a problem-free centering of the inner throttle cable 1, which considerably simplifies its installation and removal.
  • the water pipes 13, 23 and the steam pipes 14, 24 are designed in such a way that they prevent or inhibit any tendency of the gas cables 1 and 2 to oscillate.
  • the wall tubes 5, 5 'bent radially in the direction of the interior of the throttle cable perform an important function, since relatively large deformations - as a result of thermal expansion and / or earthquakes, for example - can occur. In particular, blows are better absorbed during overhaul or assembly work.
  • the gas cooler is designed for relatively high outlet temperatures from the second gas passage connector, it may be advantageous to close the upper end of the annular space between the inner gas cable 1 and the outer gas cable 2 with a detachable cover and to equalize the pressure with the inside of the pressure vessel 3 to realize in other ways, for example by connecting the interior of the pressure vessel 3 with the cool part of a downstream second gas cooler and - along a cooling section - with the synthesis gas inlet, wherein a throttle body interrupts the connection to the second gas cooler in normal operation.
  • the detachable support elements 15 on the inner throttle cable 1 could also be detachable, and for this purpose the tie rod 8 could be fastened directly to the support 15 ′ which is firmly connected to the pressure vessel 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP87108572A 1986-07-02 1987-06-13 Gaskühler für Synthesegas Expired - Lifetime EP0251005B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2661/86 1986-07-02
CH2661/86A CH670501A5 (xx) 1986-07-02 1986-07-02

Publications (2)

Publication Number Publication Date
EP0251005A1 EP0251005A1 (de) 1988-01-07
EP0251005B1 true EP0251005B1 (de) 1991-03-27

Family

ID=4238744

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87108572A Expired - Lifetime EP0251005B1 (de) 1986-07-02 1987-06-13 Gaskühler für Synthesegas

Country Status (8)

Country Link
US (1) US4768470A (xx)
EP (1) EP0251005B1 (xx)
JP (1) JPS6325490A (xx)
CN (1) CN1012590B (xx)
AU (1) AU590865B2 (xx)
CH (1) CH670501A5 (xx)
DE (1) DE3768865D1 (xx)
ZA (1) ZA874763B (xx)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3505157A1 (de) * 1985-02-15 1986-08-21 Krupp Koppers GmbH, 4300 Essen Verfahren zum erzeugen elektrischer energie in einem kombinierten gas- und dampfturbinenkraftwerk mit vorgeschalteter kohlevergasungsanlage
US4948387A (en) * 1989-11-24 1990-08-14 Texaco Inc. Synthesis gas barrier and refractory support
DE4017219A1 (de) * 1990-05-29 1991-12-05 Babcock Werke Ag Vorrichtung zur vergasung von kohlenstoffhaltigen materialien
US5233943A (en) * 1990-11-19 1993-08-10 Texaco Inc. Synthetic gas radiant cooler with internal quenching and purging facilities
WO1994016038A1 (en) * 1992-12-30 1994-07-21 Combustion Engineering, Inc. Circular slag tap for a gasifier
US5803937A (en) * 1993-01-14 1998-09-08 L. & C. Steinmuller Gmbh Method of cooling a dust-laden raw gas from the gasification of a solid carbon-containing fuel
ES2083787T3 (es) * 1993-03-16 1996-04-16 Krupp Koppers Gmbh Aparato de gasificacion para gasificar a presion combustibles finamente divididos.
DE19533912C2 (de) * 1995-09-13 1998-09-24 Gutehoffnungshuette Man Feuerfestauskleidung für eine Synthesegasanlage
DE19714376C1 (de) * 1997-04-08 1999-01-21 Gutehoffnungshuette Man Synthesegaserzeuger mit Brenn- und Quenchkammer
US7587995B2 (en) * 2005-11-03 2009-09-15 Babcock & Wilcox Power Generation Group, Inc. Radiant syngas cooler
US8684070B2 (en) * 2006-08-15 2014-04-01 Babcock & Wilcox Power Generation Group, Inc. Compact radial platen arrangement for radiant syngas cooler
US8240366B2 (en) * 2007-08-07 2012-08-14 General Electric Company Radiant coolers and methods for assembling same
US8191617B2 (en) * 2007-08-07 2012-06-05 General Electric Company Syngas cooler and cooling tube for use in a syngas cooler
DE102011080838B3 (de) * 2011-08-11 2013-01-03 Siemens Aktiengesellschaft Flugstromvergaser aufweisend einen Kühlschirm mit seitlich durch den Druckmantel geführter Verrohrung
CN103013582B (zh) * 2012-12-11 2014-08-27 中国东方电气集团有限公司 带烟气激冷的一体化束状辐射预热混合式能源利用装置
US9321975B2 (en) * 2013-12-06 2016-04-26 General Electric Company System and method for cooling syngas within a gasifier system
DE102014201890A1 (de) * 2014-02-03 2015-08-06 Siemens Aktiengesellschaft Kühlung und Waschung eines Rohgases aus der Flugstromvergasung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR902653A (fr) * 1943-10-18 1945-09-10 Brandt Edgar Ets Appareil gazo-vapeur constitué par la combinaison d'une chaudière et d'un gazogène
DE2933514C2 (de) * 1979-08-18 1987-02-12 MAN Gutehoffnungshütte GmbH, 4200 Oberhausen Vorrichtung zum Behandeln von durch Kohlevergasung erzeugtem Synthesegas
CH653360A5 (de) * 1980-09-19 1985-12-31 Sulzer Ag Heissgaskuehler an einer kohlevergasungsanlage.
US4377132A (en) * 1981-02-12 1983-03-22 Texaco Development Corp. Synthesis gas cooler and waste heat boiler
FR2513741B1 (fr) * 1981-09-25 1986-05-16 Creusot Loire Chaudiere de recuperation equipant une installation de gazeification de combustibles solides
DE3208421A1 (de) * 1982-03-09 1983-09-15 Deutsche Babcock Anlagen Ag, 4200 Oberhausen Vorrichtung zum kuehlen eines in einem vergaser erzeugten gases
NL187177C (nl) * 1982-07-12 1991-06-17 Stork Ketel & App Vertikale stralingsketel.
CH661585A5 (de) * 1983-07-07 1987-07-31 Sulzer Ag Waermeuebertrager fuer gase, vorzugsweise synthesegaskuehler.

Also Published As

Publication number Publication date
CH670501A5 (xx) 1989-06-15
DE3768865D1 (de) 1991-05-02
EP0251005A1 (de) 1988-01-07
JPS6325490A (ja) 1988-02-02
CN87104200A (zh) 1988-01-13
AU590865B2 (en) 1989-11-16
CN1012590B (zh) 1991-05-08
ZA874763B (en) 1988-01-06
US4768470A (en) 1988-09-06
AU7499687A (en) 1988-01-07

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