EP0370201B1 - Verfahren zum Betrieb einer Anlage für die Vergasung fester Brennstoffe sowie für diesen Betrieb eingerichtete Anlage - Google Patents

Verfahren zum Betrieb einer Anlage für die Vergasung fester Brennstoffe sowie für diesen Betrieb eingerichtete Anlage Download PDF

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Publication number
EP0370201B1
EP0370201B1 EP89117731A EP89117731A EP0370201B1 EP 0370201 B1 EP0370201 B1 EP 0370201B1 EP 89117731 A EP89117731 A EP 89117731A EP 89117731 A EP89117731 A EP 89117731A EP 0370201 B1 EP0370201 B1 EP 0370201B1
Authority
EP
European Patent Office
Prior art keywords
gasification
flue dust
fuel
process according
dust
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
EP89117731A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0370201A1 (de
Inventor
Karl-Heinz Dutz
Adolf Linke
Norbert Ullrich
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers GmbH
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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of EP0370201A1 publication Critical patent/EP0370201A1/de
Application granted granted Critical
Publication of EP0370201B1 publication Critical patent/EP0370201B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C10J3/485—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
    • C10K1/02—Dust removal
    • C10K1/026—Dust removal by centrifugal forces
    • 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
    • C10J2300/12—Heating the gasifier
    • C10J2300/1223—Heating the gasifier by burners
    • 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
    • C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water

Definitions

  • the invention relates generally to the gasification of fine-grained to dust-like solid fuels.
  • Solid fuels refer in particular to hard coal, coke, petroleum coke and the like.
  • the gasification takes place with oxygen and / or air and possibly water vapor in the entrained flow and leads to a raw gas consisting mainly of carbon monoxide and hydrogen.
  • the raw gas carries with it dust that has a share of residual carbon.
  • the gasification is pressure gasification.
  • the invention relates to a method for operating a system for the gasification of fine-grained and dust-like solid fuels with a gasification reactor, which is equipped with gasification burners, device for the separation of dust from the raw gas, dust collection container and device for the recycling of dust into the gasification reactor, the gasification burner having a Burn the rotationally symmetrical fuel / reactant jet into the gasification reactor at the gasification burner outlet and a primary reaction zone of high temperature is formed by the fuel / reactant jets in the gasification reactor. It also relates to a system that is specially set up for operation in accordance with this method. - In the expression fuel / reactant jet, reactant denotes both the oxidizing agent and reaction products already formed and, if appropriate, also moderator gas and carrier gas.
  • the fly dust is mixed with the fresh fuel and fed to the gasification burners together with the fuel special treatment of the dust, namely extensive and complicated technical facilities with large safety precautions.
  • the pore space or gap space of the flue dust extracted from the raw gas is filled with the raw gas containing carbon monoxide and hydrogen, which has to be diluted or removed only below the hazard limit by repeated application and pumping with inert gas.
  • the treatment of the raw gas separated from the flying dust is also cumbersome and complex, since it often contains sulfur and, for reasons of environmental protection, cannot be flared, burned or released into the atmosphere. Incidentally, it disturbs that the fly dust added to the fresh fuel reduces the calorific value of the fuel, which influences the thermodynamics and the reaction kinetics of the gasification process.
  • the invention has for its object to carry out the method described in such a way that, without special treatment of the fly dust and without disturbing the thermodynamics or reaction kinetics of the gasification process, a sufficiently complete integration of the fly dust into the slag can be achieved, with simultaneous combustion of the Residual carbon.
  • the invention teaches that the fly dust with its raw gas and residual carbon content is introduced into the axis of at least one fuel / reactant jet by a conveying gas stream, introduced into the primary reaction zone and melted in the jet.
  • the flying dust is introduced through the axis of the respective gasification burner.
  • the gasification reaction already begins in the fuel-reactant stream and is not disturbed by the flying dust here or in the primary reaction zone, which contributes to the fact that its residual carbon is also gasified.
  • the volume flow of airborne dust must not be chosen too large.
  • the usual high temperatures of, for example, 2000 ° C. and more arise in the primary reaction zone, which are required for the melting of the flying dust.
  • the fly dust is scarcely discharged from the primary reaction zone more than usual and without the fly dust recirculation described. The fly dust does not accumulate in the untreated raw gas, so that the described cycle management is possible.
  • gasification burners which have a feed channel for primary oxygen which is coaxial with the gasification burner axis and a surrounding ring channel for have the fuel supply and an annular channel surrounding it indirectly or directly for the supply of secondary oxygen.
  • the invention recommends feeding the fly dust in the axis of the feed channel for the primary oxygen through a special feed channel.
  • the primary oxygen flow can be divided into two concentric partial flows.
  • the gasification burners are set up for supplying a flow of flue dust that is smaller by a factor of 0.01 to 0.15 than the fuel flow. This applies practically proportionally to other designs of the gasification burner.
  • the invention also relates to a plant which is particularly suitable for carrying out the method. It is explained in more detail below with the aid of a drawing. - The only drawing shows the diagram of a system according to the invention.
  • the basic structure of the plant shown in the figure consists of a gasification reactor 1, which is equipped with gasification burners 2, a device 3 for separating the dust from the raw gas, a dust collecting container 4 with a device for returning the dust into the gasification reactor 1.
  • the gasification burners 2 burn with a fuel / reactant jet 5 which is rotationally symmetrical at the gasification burner outlet into the gasification reactor 1 into it and create a primary reaction zone 6 of high temperature.
  • the gasification burners 2 have a central feed duct 7 for the flying dust. This is surrounded by an annular channel 8 for the supply of primary oxygen.
  • the arrangement is also such that the central feed channels 7 are connected to the dust collector 4 via a metering device 9. - It goes without saying that the gasification burner 2 can otherwise be set up as usual in the gasification of solid fuels.
  • the raw gas loaded with the dust comes through the line 10 into the device 3 for the dust separation, which is designed as a separating cyclone.
  • the dust is separated here.
  • the separated fly dust which still contains raw gas in its pore space or gap space, falls through line 11 into the fly dust collection container 4.
  • the dosing device 9 is operated from this fly dust collection container 4. It includes two allotment containers 12. Periodically, the two allotment containers 12 are filled via lines 13 from the dust collection container 4 by free fall.
  • the feed container 12, which is filled with fly dust is pressurized through a line 14 with purified raw gas or inert gas, which is only slightly above the pressure in the gasification reactor 1.
  • the airborne dust is introduced through the lines 15 under sufficient pressure via the line 16 into the lines which open into the gasification burners 2. They open into the central feed channel 7 for the fly dust, which is surrounded by the ring channel 8 for the feed of primary oxygen.
  • the lines 17 are expansion lines for the respective empty emptying containers 12 and lead into the line 18 outgoing from the device 3 for the dust collection for the cleaned raw gas.

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)
  • Gasification And Melting Of Waste (AREA)
  • Processing Of Solid Wastes (AREA)
  • Air Supply (AREA)
  • Hydrogen, Water And Hydrids (AREA)
EP89117731A 1988-11-05 1989-09-26 Verfahren zum Betrieb einer Anlage für die Vergasung fester Brennstoffe sowie für diesen Betrieb eingerichtete Anlage Expired - Lifetime EP0370201B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3837587 1988-11-05
DE3837587A DE3837587C1 (da) 1988-11-05 1988-11-05

Publications (2)

Publication Number Publication Date
EP0370201A1 EP0370201A1 (de) 1990-05-30
EP0370201B1 true EP0370201B1 (de) 1992-06-17

Family

ID=6366555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117731A Expired - Lifetime EP0370201B1 (de) 1988-11-05 1989-09-26 Verfahren zum Betrieb einer Anlage für die Vergasung fester Brennstoffe sowie für diesen Betrieb eingerichtete Anlage

Country Status (8)

Country Link
EP (1) EP0370201B1 (da)
CN (1) CN1025867C (da)
DD (1) DD285990A5 (da)
DE (3) DE3837587C1 (da)
DK (1) DK548489A (da)
ES (1) ES2033504T3 (da)
PL (1) PL161778B1 (da)
ZA (1) ZA897381B (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132770A1 (de) * 1991-10-02 1993-04-08 Kurt Kugler Flugstaubentsorgung, minimierung der als sonderabfall zu entsorgenden flugstaubmenge
DE4407651C1 (de) * 1994-03-08 1995-10-26 Rheinische Braunkohlenw Ag Verfahren zur Erzeugung von Synthesegas
US7540891B2 (en) 2003-10-31 2009-06-02 Shell Oil Company System and method for stripping toxigas from a powder
PL224212B1 (pl) 2012-10-12 2016-11-30 Sarre Piotr Sposób zgazowania surowców węglonośnych, karbonizatów i węgli oraz układ urządzeń do prowadzenia tego procesu

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL171691C (nl) * 1973-02-26 1983-05-02 Shell Int Research Werkwijze voor de bereiding van waterstof en/of koolmonoxide bevattende gassen door onvolledige verbranding van brandstoffen en afscheiding van de daarbij gevormde vaste stofdeeltjes.
US3929429A (en) * 1974-09-26 1975-12-30 Texaco Inc Fuel gas from solid carbonaceous fuels
US4168956A (en) * 1977-08-18 1979-09-25 Combustion Engineering, Inc. Method of operating a coal gasifier
DE2947222A1 (de) * 1979-11-23 1981-05-27 Carbon Gas Technologie GmbH, 4030 Ratingen Verfahren zur vergasung von festem, staubfoermig bis stueckigem kohlestoffhaltigem material
DE3132506A1 (de) * 1981-08-18 1983-03-03 Hoechst Ag, 6000 Frankfurt Verfahren und vorrichtung zur herstellung von synthesegas
EP0109109B1 (en) * 1982-11-11 1987-08-05 Shell Internationale Researchmaatschappij B.V. Process for the partial combustion of solid fuel with fly ash recycle
US4480559A (en) * 1983-01-07 1984-11-06 Combustion Engineering, Inc. Coal and char burner

Also Published As

Publication number Publication date
DE58901693D1 (de) 1992-07-23
ES2033504T3 (es) 1993-03-16
DE3941816A1 (de) 1991-06-20
CN1025867C (zh) 1994-09-07
PL161778B1 (pl) 1993-07-30
DE3837587C1 (da) 1990-05-23
DK548489D0 (da) 1989-11-03
ZA897381B (en) 1990-07-25
EP0370201A1 (de) 1990-05-30
CN1042560A (zh) 1990-05-30
DK548489A (da) 1990-05-06
DD285990A5 (de) 1991-01-10

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