EP0290087B1 - Process and apparatus for the preparation of synthesis gas - Google Patents

Process and apparatus for the preparation of synthesis gas Download PDF

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Publication number
EP0290087B1
EP0290087B1 EP88200829A EP88200829A EP0290087B1 EP 0290087 B1 EP0290087 B1 EP 0290087B1 EP 88200829 A EP88200829 A EP 88200829A EP 88200829 A EP88200829 A EP 88200829A EP 0290087 B1 EP0290087 B1 EP 0290087B1
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EP
European Patent Office
Prior art keywords
lockhopper
slag
gas
valves
quench vessel
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
EP88200829A
Other languages
German (de)
French (fr)
Other versions
EP0290087A2 (en
EP0290087A3 (en
Inventor
Günter Klaus Eckstein
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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
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Publication of EP0290087A2 publication Critical patent/EP0290087A2/en
Publication of EP0290087A3 publication Critical patent/EP0290087A3/en
Application granted granted Critical
Publication of EP0290087B1 publication Critical patent/EP0290087B1/en
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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
    • C10J3/52—Ash-removing devices
    • C10J3/526—Ash-removing devices for entrained flow gasifiers
    • 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
    • C10J3/485—Entrained flow gasifiers
    • 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
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • 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
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/101—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids with water only
    • 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
    • C10J2200/00—Details of gasification apparatus
    • C10J2200/15—Details of feeding means
    • C10J2200/156—Sluices, e.g. mechanical sluices for preventing escape of gas through the feed inlet
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air
    • 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
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen

Definitions

  • the invention relates to a process for the preparation of synthesis gas by the partial combustion of a finely divided solid carbon-containing fuel with an oxygen-containing gas in a reactor wherein liquid slag formed during the partial combustion process is removed through an outlet in the bottom of the reactor and passed by gravity through a slag discharge means into a water bath or slag quenching vessel where it is solidified by quenching.
  • finely divided solid carbon-containing fuel is generally meant coal or another solid fuel, such as brown coal, peat, wood, coke, soot etc., but mixtures of liquid or gas and particulate solid fuels, are also possible.
  • a moderator is also introduced into the reactor.
  • the object of the moderator is to exercise a moderating effect on the temperature on the reactor. This is ensured by endothermic reaction between the moderator and the reactants and/or products of the synthesis gas preparation.
  • Suitable moderators are steam and carbon dioxide.
  • the gasification is advantageously carried out at a temperature in the range from 1200 to 1700 ° C and at a pressure in the range from 1 to 200 bar.
  • the reactor in which the preparation of synthesis gas takes place may have any suitable shape.
  • the supply of finely divided solid carbon-containing fuel and oxygen-containing gas to the reactor can take place in any manner suitable for the purpose and will not be described in detail.
  • Liquid slag formed in the partial combustion reaction drops down and is drained through the outlet located in the reactor bottom.
  • a quenching water bath or slag quench vessel located below the reactor and connected therewith in any way suitable for the purpose, in which water bath or slag quench vessel the slag descending due to its gravity, is captured, quenched, and forms clinker granules or agglomerations. After such granulation, the clinker is periodically or continuously removed from the said water bath or slag quench vessel by means of conventional arrangements.
  • This may for example be carried out by means of a lockhopper from which solidified slag is batchwise sluiced out of the gasification system.
  • the lockhopper is isolated from the gasification system by closing one or more valves in the connecting line between the slag quench vessel and the lockhopper.
  • the invention therefore provides a process for the preparation of synthesis gas by partial combustion of finely divided solid carbon-containing fuel with an oxygen-containing gas in a reactor, wherein liquid slag formed during the partial combustion process falls into a water bath or slag quench vessel where it solidifies and from there falls by gravity into a lockhopper from which the solidified slag is batchwise sluiced out of the gasification system, said lockhopper and slag -quench vessel being connected through one or more valves, comprising the steps of creating and maintaining a permanent gas bubble or gascap in the lockhopper, the pressure of the said gas bubble being lower than the pressure in the slag quench vessel, thus creating an initial downwards flow of water and slag during opening of the valves between the lockhopper and the slag quench vessel.
  • the invention also provides an apparatus for carrying out the above process comprising a slag quench vessel, connected through one or more valves to a lockhopper provided at its bottom with an outlet comprising one or more valves, and means for creating and maintaining a permanent gas bubble or gascap in the lockhopper.
  • the gas bubble in the lockhopper can be created by inserting downwardly a pipe of a certain length into the top of the lockhopper.
  • the gas bubble consists of an inert gas such as nitrogen.
  • the slag quench vessel 1 is part of a gasification system and is located below a reactor or gasification zone wherein the partial combustion process is carried out, and is connected thereto in any manner suitable for the purpose.
  • the gasification zone has not been represented for reasons of clarity.
  • the outlet 2 of the slag quench vessel 1 is connected by any suitable connecting line 3 to a lockhopper 4 located below the said slag quench vessel.
  • a lockhopper 4 located below the said slag quench vessel.
  • one or more valves 3a are provided in the line 3 in the line 3 in the line 3 in the line 3 in the line 3 in the line 3 in the line 3 in the line 3 one or more valves 3a are provided.
  • a permanent gas bubble or gascap 5 is maintained, at a pressure lower than the pressure in the slag quench vessel 1.
  • the gas bubble may for example consist of an inert gas such as nitrogen.
  • the lockhopper 4 is provided with an outlet 7 at its bottom and one or more valves 7a for discharging the solidified slag from the gasification system during a sluicing cycle.
  • the slag can be discharged to any means suitable for the purpose (not shown for reasons of clarity).
  • the gas bubble 5 in the lockhopper may be maintained by supplying inert gas (such as nitrogen) to the lockhopper 4 by means of a conduit or pipe 6 penetrating into the upper interior space of the lockhopper, as shown in fig. 1, or advantageously by means of a pipe 6a in fluid communication with the vertically disposed conduit between the slag quench vessel 1 and the lockhopper 4, as shown in fig. 2, and wherein said vertical conduit penetrates into the interior of said lockhopper a distance sufficient to maintain the gas bubble in the uppermost part of the lockhopper.
  • inert gas such as nitrogen
  • the gas bubble in the lockhopper having a lower pressure than the pressure in the slag quench vessel creates an initial downwards flow of water and slag thus resulting in a debridging action in the region A.
  • the gas bubble also allows a quick performance test of the valves. If the volume of the gas bubble changes with time this is an indication of valve leakages.
  • the pressure of the gas bubble in the lockhopper can be higher than the pressure of the discharge means outside the lockhopper. In this manner unloading of the lockhopper is facilitated and possible bridging at the outlet 7 of the lockhopper is reduced.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Gasification And Melting Of Waste (AREA)

Description

  • The invention relates to a process for the preparation of synthesis gas by the partial combustion of a finely divided solid carbon-containing fuel with an oxygen-containing gas in a reactor wherein liquid slag formed during the partial combustion process is removed through an outlet in the bottom of the reactor and passed by gravity through a slag discharge means into a water bath or slag quenching vessel where it is solidified by quenching.
  • The partial combustion of finely divided solid carbon-containing fuel with substantially pure oxygen as oxygen-containing gas yields synthesis gas mainly consisting of carbon monoxide and hydrogen. When the oxygen-containing gas is air or oxygen- enriched air, the synthesis gas formed of course also contains a substantial quantity of nitrogen. By finely divided solid carbon-containing fuel is generally meant coal or another solid fuel, such as brown coal, peat, wood, coke, soot etc., but mixtures of liquid or gas and particulate solid fuels, are also possible.
  • Advantageously, a moderator is also introduced into the reactor. The object of the moderator is to exercise a moderating effect on the temperature on the reactor. This is ensured by endothermic reaction between the moderator and the reactants and/or products of the synthesis gas preparation. Suitable moderators are steam and carbon dioxide.
  • The gasification is advantageously carried out at a temperature in the range from 1200 to 1700 °C and at a pressure in the range from 1 to 200 bar.
  • The reactor in which the preparation of synthesis gas takes place may have any suitable shape.
  • The supply of finely divided solid carbon-containing fuel and oxygen-containing gas to the reactor can take place in any manner suitable for the purpose and will not be described in detail.
  • Liquid slag formed in the partial combustion reaction drops down and is drained through the outlet located in the reactor bottom.
  • To remove the slag from the gasifying process, it is already known to arrange a quenching water bath or slag quench vessel located below the reactor and connected therewith in any way suitable for the purpose, in which water bath or slag quench vessel the slag descending due to its gravity, is captured, quenched, and forms clinker granules or agglomerations. After such granulation, the clinker is periodically or continuously removed from the said water bath or slag quench vessel by means of conventional arrangements.
  • This may for example be carried out by means of a lockhopper from which solidified slag is batchwise sluiced out of the gasification system.
  • During the sluicing cycle the lockhopper is isolated from the gasification system by closing one or more valves in the connecting line between the slag quench vessel and the lockhopper.
  • However, the slag which is produced in the meantime in the partial combustion process collects in the slag quench vessel above these valves where it shows a tendency for bridging at the narrow space just above the said valves.
  • However, it has appeared very difficult to have the slag to fall into the lockhopper after reconnecting the lockhopper to the gasification system.
  • Even water jet nozzles for agitation purposes proved to be not successful. Therefore, it is an object of the invention to provide a process and an apparatus for producing synthesis gas by the partial combustion of finely divided solid carbon-containing fuel wherein the liquid slag formed during the partial combustion process can be removed from the slag quench vessel easily in a very effective and efficient manner.
  • It is another object of the invention to provide a quick performance test of the valves between the slag quench vessel and the lockhopper.
  • The invention therefore provides a process for the preparation of synthesis gas by partial combustion of finely divided solid carbon-containing fuel with an oxygen-containing gas in a reactor, wherein liquid slag formed during the partial combustion process falls into a water bath or slag quench vessel where it solidifies and from there falls by gravity into a lockhopper from which the solidified slag is batchwise sluiced out of the gasification system, said lockhopper and slag -quench vessel being connected through one or more valves, comprising the steps of creating and maintaining a permanent gas bubble or gascap in the lockhopper, the pressure of the said gas bubble being lower than the pressure in the slag quench vessel, thus creating an initial downwards flow of water and slag during opening of the valves between the lockhopper and the slag quench vessel.
  • The invention also provides an apparatus for carrying out the above process comprising a slag quench vessel, connected through one or more valves to a lockhopper provided at its bottom with an outlet comprising one or more valves, and means for creating and maintaining a permanent gas bubble or gascap in the lockhopper.
  • In an advantageous embodiment of the invention the gas bubble in the lockhopper can be created by inserting downwardly a pipe of a certain length into the top of the lockhopper.
  • In another advantageous embodiment the gas bubble consists of an inert gas such as nitrogen.
  • The invention will now be described in more detail by way of example with reference to the accompanying drawings, in which figs. 1 and 2 schematically represent advantageous embodiments of the apparatus of the invention.
  • Referring now to figs. 1 and 2 a cross-section of a slag quench vessel 1 provided with an outlet 2 has been represented. The slag quench vessel 1 is part of a gasification system and is located below a reactor or gasification zone wherein the partial combustion process is carried out, and is connected thereto in any manner suitable for the purpose.
  • The gasification zone has not been represented for reasons of clarity. The outlet 2 of the slag quench vessel 1 is connected by any suitable connecting line 3 to a lockhopper 4 located below the said slag quench vessel. In the line 3 one or more valves 3a are provided.
  • In the lockhopper 4 a permanent gas bubble or gascap 5 is maintained, at a pressure lower than the pressure in the slag quench vessel 1. The gas bubble may for example consist of an inert gas such as nitrogen.
  • The lockhopper 4 is provided with an outlet 7 at its bottom and one or more valves 7a for discharging the solidified slag from the gasification system during a sluicing cycle. The slag can be discharged to any means suitable for the purpose (not shown for reasons of clarity). The gas bubble 5 in the lockhopper may be maintained by supplying inert gas (such as nitrogen) to the lockhopper 4 by means of a conduit or pipe 6 penetrating into the upper interior space of the lockhopper, as shown in fig. 1, or advantageously by means of a pipe 6a in fluid communication with the vertically disposed conduit between the slag quench vessel 1 and the lockhopper 4, as shown in fig. 2, and wherein said vertical conduit penetrates into the interior of said lockhopper a distance sufficient to maintain the gas bubble in the uppermost part of the lockhopper.
  • The operation of the system of the invention is as follows:
    • the liquid slag which is formed in the gasification system during the partial combustion process falls into the water bath or slag quench vessel 1 where it solidifies.
  • From the slag quench vessel 1 it falls by gravity into the lockhopper 4 from which the solidified slag is batchwise sluiced out of the gasification system. It will be clear to those skilled in the art that at appropriate times the valves 3a and 7a should be opened and closed respectively.
  • During the sluicing cycle the lockhopper 4 is isolated from the gasification system since the valves 3a between the slag quench vessel and the lockhopper are closed, whereas the valves 7a at the outlet 7 of the lockhopper 4 are opened. Thus, slag which is produced in the meantime, will collect in the slag quench vessel 1 above the valves 3a and has a tendency for bridging at the narrow space just above these valves ( schematically represented by the bridging region A).
  • According to the invention, after reconnecting the lockhopper 4 to the gasification system by closing the valves 7a and opening the valves 3a the gas bubble in the lockhopper having a lower pressure than the pressure in the slag quench vessel creates an initial downwards flow of water and slag thus resulting in a debridging action in the region A.
  • It will be appreciated that the gas bubble also allows a quick performance test of the valves. If the volume of the gas bubble changes with time this is an indication of valve leakages.
  • It will further be appreciated that the pressure of the gas bubble in the lockhopper can be higher than the pressure of the discharge means outside the lockhopper. In this manner unloading of the lockhopper is facilitated and possible bridging at the outlet 7 of the lockhopper is reduced.
  • Various modifications of the present invention will become apparent to those skilled in the art from the foregoing description and accompanying drawing. Such modifications are intended to fall within the scope of the appended claims.

Claims (6)

1. A process for the preparation of synthesis gas by partial combustion of finely divided solid carbon-containing fuel with an oxygen-containing gas in a reactor, wherein liquid slag formed during the partial combustion process falls into a water bath or slag quench vessel where it solidifies and from there falls by gravity into a lockhopper from which the solidified slag is batchwise sluiced out of the gasification system said lockhopper and slag quench vessel being connected through one or more valves, comprising the steps of creating and maintaining a permanent gas bubble or gascap in the lockhopper, the pressure of the gas bubble being lower than the pressure in the slag quench vessel, thus creating an initial downwards flow of water and slag during opening of the valves between the lockhopper and the slag quench vessel.
2. The process as claimed in claim 1 wherein the gas bubble is maintained by supplying gas to the lockhopper by means of a conduit or pipe extending into the upper interior space within the lockhopper.
3. The process as claimed in claim 1 or 2 wherein the gas bubble consists of an inert gas.
4. The process as claimed in claim 3 wherein the said inert gas is nitrogen.
5. An apparatus for carrying out the process as claimed in any one of claims 1-4 comprising a slag quench vessel, connected through one or more valves to a lockhopper provided at its bottom with an outlet, comprising one or more valves, and means for creating and maintaining a permanent gas bubble in the lockhopper.
6. The apparatus as claimed in claim 4 comprising a conduit or pipe extending into the upper interior space within the lockhopper.
EP88200829A 1987-05-05 1988-04-27 Process and apparatus for the preparation of synthesis gas Expired - Lifetime EP0290087B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3714915 1987-05-05
DE19873714915 DE3714915A1 (en) 1987-05-05 1987-05-05 METHOD AND DEVICE FOR THE PRODUCTION OF SYNTHESIS GAS

Publications (3)

Publication Number Publication Date
EP0290087A2 EP0290087A2 (en) 1988-11-09
EP0290087A3 EP0290087A3 (en) 1989-02-08
EP0290087B1 true EP0290087B1 (en) 1990-09-19

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Application Number Title Priority Date Filing Date
EP88200829A Expired - Lifetime EP0290087B1 (en) 1987-05-05 1988-04-27 Process and apparatus for the preparation of synthesis gas

Country Status (7)

Country Link
EP (1) EP0290087B1 (en)
JP (1) JP2609533B2 (en)
CN (1) CN1018187B (en)
AU (1) AU599786B2 (en)
CA (1) CA1336645C (en)
DE (2) DE3714915A1 (en)
ZA (1) ZA883134B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010006747A2 (en) 2008-07-15 2010-01-21 Uhde Gmbh Gasification device with continuous solid discharge

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001021736A1 (en) * 1999-09-21 2001-03-29 Shell Internationale Research Maatschappij B.V. Process to remove solid slag particles from a mixture of solid slag particles and water
US6755980B1 (en) 2000-09-20 2004-06-29 Shell Oil Company Process to remove solid slag particles from a mixture of solid slag particles and water
RU2007123396A (en) 2004-11-22 2008-12-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (NL) GAS FUEL DRIVING UNIT
CN1994865B (en) 2006-12-12 2011-05-18 华东理工大学 Gasification device for two-stage gasification coupled with heat recovery and washing and its uses
CN101003358B (en) 2006-12-12 2011-05-18 华东理工大学 Multi nozzle gasification furnace feeding in hydrocarbon-including plasma or powder state
DE102008005704A1 (en) * 2008-01-24 2009-07-30 Uhde Gmbh Process and installation for the removal of slag from a slag bath tank, in particular in synthesis gas recovery
US8349170B2 (en) * 2008-05-14 2013-01-08 Exxonmobil Research And Engineering Company FCC reactor and riser design for short contact-time catalytic cracking of hydrocarbons
DE102008033095A1 (en) * 2008-07-15 2010-01-28 Uhde Gmbh Apparatus for slag removal from a coal gasification reactor
DE102008035386A1 (en) 2008-07-29 2010-02-11 Uhde Gmbh Slag discharge from reactor for syngas recovery

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US3235313A (en) * 1964-05-18 1966-02-15 Koppers Co Inc Sluicing solid materials from spaces under superatmospheric pressure
DE2455127C2 (en) * 1974-11-21 1986-02-27 Shell Internationale Research Maatschappij B.V., Den Haag Process for discharging residues from a gasification chamber under increased pressure
BR8105270A (en) * 1980-11-12 1982-08-31 Texaco Development Corp PROCESS FOR THE PRODUCTION OF SYNTHESIS GAS SUBSTANTIALLY FREE OF PARTICLES
US4533363A (en) * 1984-01-20 1985-08-06 Texaco Development Corporation Production of synthesis gas
DE3507628A1 (en) * 1985-03-05 1986-09-18 Veba Oel Entwicklungs-Gesellschaft mbH, 4650 Gelsenkirchen METHOD AND DEVICE FOR EJECTING ASHES OR ALSO SLAG PARTIES FROM A PRESSURE GASIFICATION REACTOR
JPS61243896A (en) * 1985-04-23 1986-10-30 Mitsubishi Heavy Ind Ltd Method of discharging slag in gasifying oven
CA1320642C (en) * 1986-08-06 1993-07-27 M. Dale Mayes Slag removal system for a solid fuels gasification reactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010006747A2 (en) 2008-07-15 2010-01-21 Uhde Gmbh Gasification device with continuous solid discharge
DE102008033094A1 (en) 2008-07-15 2010-01-28 Uhde Gmbh Gasification device with continuous solids discharge
US8915980B2 (en) 2008-07-15 2014-12-23 Uhde Gmbh Gasification apparatus with continuous solids discharge

Also Published As

Publication number Publication date
AU599786B2 (en) 1990-07-26
EP0290087A2 (en) 1988-11-09
CN88102581A (en) 1988-11-16
CA1336645C (en) 1995-08-15
CN1018187B (en) 1992-09-09
ZA883134B (en) 1988-11-08
EP0290087A3 (en) 1989-02-08
DE3714915A1 (en) 1988-11-24
JP2609533B2 (en) 1997-05-14
JPS63286493A (en) 1988-11-24
AU1552588A (en) 1988-11-10
DE3860637D1 (en) 1990-10-25

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