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EP0367966A1 - Brûleur pour la gazéification des combustibles solides à grains fins ou pulvérulents - Google Patents

Brûleur pour la gazéification des combustibles solides à grains fins ou pulvérulents Download PDF

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Publication number
EP0367966A1
EP0367966A1 EP89117730A EP89117730A EP0367966A1 EP 0367966 A1 EP0367966 A1 EP 0367966A1 EP 89117730 A EP89117730 A EP 89117730A EP 89117730 A EP89117730 A EP 89117730A EP 0367966 A1 EP0367966 A1 EP 0367966A1
Authority
EP
European Patent Office
Prior art keywords
channel
gasification
fuel
injection lance
feed channel
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.)
Granted
Application number
EP89117730A
Other languages
German (de)
English (en)
Other versions
EP0367966B1 (fr
Inventor
Karl-Heinz Dutz
Lothar Semrau
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 EP0367966A1 publication Critical patent/EP0367966A1/fr
Application granted granted Critical
Publication of EP0367966B1 publication Critical patent/EP0367966B1/fr
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
    • C10J3/50—Fuel charging devices
    • C10J3/506—Fuel charging 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
    • C10J2300/00—Details of gasification processes
    • C10J2300/12—Heating the gasifier
    • C10J2300/1223—Heating the gasifier by burners

Definitions

  • the invention relates to a gasification burner for a system for the gasification of fine-grained to dust-like solid fuels, which has a gasification reactor, with a central first feed channel for primary oxidizing agents, a surrounding ring fuel channel for the fuels which are introduced with a carrier gas, the fuel -Ringkanal surrounding second annular feed channel for secondary oxidant, and with cooling channels and optionally at least one moderator gas ring channel, wherein a majority of the gasification burners burn with their fuel / reactant jet into the gasification reactor and the fuel / reactant jets in the gasification reactor a primary reaction zone of high temperature form and an essentially carbon monoxide and hydrogen-containing raw gas is withdrawn from the gasification reactor.
  • the basic structure of the gasification burner is symmetrical.
  • the gasification is carried out as pressure gasification.
  • the solid fuels are in particular coal, coke, petroleum coke and the like. Oxygen and / or air and, if appropriate, water vapor are used in particular as oxidizing agents.
  • the carrier gas is an inert gas, such as nitrogen or carbon dioxide, or dedusted raw gas.
  • reactant denotes both the oxidizing agent and reaction products which have already formed, and if appropriate also moderator gas and carrier gas.
  • the raw gas leaving the reactor is known to carry fly dust, which, for. B. carries in an amount of up to 15 wt .-% fuel. The dust is removed from the raw gas with suitable dedusting devices. Its disposal is complex.
  • fly dust In order to dispose of the fly dust, it is known to return the fly dust to the gasification process. Its fuel component is to be burned, and the fly dust is to be melted down. As part of known measures (EP 0 072 457 B1, EP 0 109 109 B1), the fly dust is mixed with the fresh fuel and fed to the gasification burners together with the fuel. This is complex and requires special processing of the fly ash, namely extensive and complicated technical facilities with large safety precautions. The pore space or gap space of the flying dust is filled with the raw gas containing carbon monoxide and hydrogen, which has to be diluted or removed only below the danger limit by repeated application and pumping with inert gas.
  • the loading of the raw gas separated from the fly dust is also cumbersome and complex, since it often contains sulfur and, for reasons of environmental protection, cannot be flared or otherwise burned and 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. It is also known to return the fly dust to the gasification reactor (DE 2 909 008 C2), specifically via feed nozzles separate from the gasification burners. This affects the gasification reaction and has hardly found its way into practice. In practice, it is rather common (DE-AS 2 325 204) to blow up the flying dust in a reactor onto the slag, the residual carbon generally also going into the slag.
  • Gasification burners are known in various embodiments. In particular, practice knows those of the structure described at the beginning. It is common to integrate such gasification burners and pilot burners.
  • the invention has for its object to provide a gasification burner of the structure described above and the intended purpose described above, with the fly dust, in particular the accumulated in the plant for gasifying the solid fuels, can be returned without disturbing the gasification process in this.
  • the invention teaches that a tubular injection lance is arranged in the first feed channel, which is surrounded by oxidizing agent, and that a fly dust / carrier gas stream can be injected into the core of the fuel / reactant jet through the injection lance.
  • a fly dust / carrier gas stream can be injected into the core of the fuel / reactant jet through the injection lance.
  • the injection lance is preferably inserted axially into the first feed channel. This leads to a symmetrical, circular fuel-reagent jet.
  • the invention makes use of the fact that a fuel / reactant jet emerging from a gasification burner, in particular a rotationally symmetrical fuel / reactant jet, is very stable in terms of gas dynamics and can carry a flow of fly ash into the primary reaction zone.
  • the gasification reaction begins in the fuel / reactant flow and is not disturbed by the flying dust, as in the primary reaction zone, which also contributes to the fact that its residual carbon is also gasified.
  • the volume flow of airborne dust must not be chosen too large.
  • the primary reaction zone the dust is hardly discharged more than usual and without the recirculation described. It does not accumulate.
  • a special fly dust disposal is no longer necessary when working with gasification burners according to the invention, the fly dust is rather melted into slag.
  • the arrangement will be such that the injection lance opens into the area of the mouth of the first feed channel, the fuel channel and the second feed channel in the burner front.
  • a preferred embodiment of the invention which allows adjustment to different operating conditions, is characterized in that the injection lance and thus its mouth are adjustable in the axial direction.
  • the primary oxidant can flow around the injection lance.
  • this embodiment also ensures that the fly dust arrives in the primary reaction zone and does not interfere with the gasification process.
  • the situation is more stable if the injection lance is surrounded by an oxidant channel and this is surrounded by the first supply channel.
  • the design be such that the oxidant channel has a mouth that runs parallel to the axis of the gasification burner, the first feed channel has an outward mouth, and the second feed channel has an inward mouth.
  • the second feed channel with a plurality of orifices distributed equidistantly over the circumference.
  • the mouth can also be designed as an annular gap. As in the context of the known measures, it is advisable to arrange a cooling channel between the first supply channel and the fuel ring channel.
  • a preferred embodiment is characterized in that the injection lance is 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. In this area, it is generally possible to recycle all of the fly dust, with its proportion of fuel, which occurs in a plant for the gasification of fine-grained to dust-like solid fuels.
  • the gasification burner shown in the figures is for a system, not shown, for gasification from fine-grained to dust-like against solid fuels.
  • the plant has a gasification reactor.
  • a majority of the gasification burners burn with their fuel / reactant jet into the gasification reactor and are generally distributed equidistantly around the circumference of the gasification reactor.
  • the fuel / reactant jets form a high temperature primary reaction zone in the gasification reactor. It is understood that a raw gas is withdrawn from the gasification reactor.
  • the basic structure of the gasification burner includes a first feed channel 1 for the primary oxidizing agent, a surrounding fuel ring channel 2 for the fuels that are introduced with a carrier gas, a second annular feed channel 3 for secondary oxidizing agent and cooling channels 4 surrounding the fuel ring channel 2, and optionally at least one moderator gas ring channel 5.
  • the injection lance 6 In the first feed channel 1 there is a tubular injection lance 6 which is surrounded by oxidizing agent.
  • a flight dust / carrier gas stream can be injected into the core of the fuel / reactant jet through the injection lance 6.
  • the carrier gas is, for example, raw gas.
  • the injection lance 6 opens in the area of the mouths of the first feed channel 1, the fuel ring channel 2 and the second feed channel 3 and thus, as it were, in the front of the gasification burner.
  • a funnel-shaped training follows.
  • the injection lance 6 runs in the axis of the gasification burner. It can be axially adjustable in the direction of the double arrow, which allows adaptation to different operating conditions.
  • the injection lance 6 is surrounded by an oxidant channel 7 and this is surrounded by the first supply channel 1.
  • the oxidizing agent channel 7 has an opening 8 which is directed parallel to the axis of the gasification burner and accordingly the oxidizing agent emerges from an oxidizing channel, enveloping the flue dust flow.
  • the first feed channel 1 in contrast, has an outwardly directed mouth 9.
  • the mouth 10 of the second feed channel 3, on the other hand, is directed inward, as is also common in the gasification burners described at the outset. It is within the scope of the invention to provide the second feed channel 3 with a plurality of orifices 11 distributed equidistantly over the circumference, as was indicated in FIG. 2.
  • An annular cooling channel 4 is located between the first supply channel 1 and the fuel ring channel 2.
  • a flame monitor 12 was indicated, with which the gasification burner can be monitored in a known manner.
  • An outer cooling jacket 13 with further cooling channels 4 follows. It is within the scope of the invention to arrange an insulated ignition electrode 14 in the injection lance 6, as was indicated by dash-dotted lines at the mouth of the injection lance 6.
  • the injection lance 6, the oxidant channel 7, the first feed channel 1 and the cooling channel 4 are located in or on a unitary component which is illustrated by close hatching and is adjustable in the axial direction.
  • the gasification burner according to the invention consists, as it were, of two independent assemblies, which are also interchangeable. By exchanging an adaptation to different operating conditions is possible.
  • the oxidizing agent oxygen required for the gasification of the fine-grained to dust-like fuel is divided into two streams, the primary and the secondary gasification oxygen, whose mass ratios between primary and secondary can be 1: 1.15 to 1.3.
  • the arrangement is such that the oxygen flow from the first feed channel strikes the fuel flow at an inflow angle of 0 to 20 ° to the central axis of the gasification burner.
  • the exit velocity of 60 to 120 m / s of the primary oxygen also serves to accelerate the fuel from a low initial velocity to the velocity which corresponds to or approximates the axial velocity of the secondary oxygen. This emerges at an angle of 20 to 50 ° to the central axis of the gasification burner at a speed of 40 to 100 m / s.
  • the flame monitor 12 is of particular importance. It makes it possible to determine whether caked-on particles of particulate matter have formed.
  • the gasification burner according to the invention can also be used as a pilot burner, in particular in coal gasification plants.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Gasification And Melting Of Waste (AREA)
EP89117730A 1988-11-05 1989-09-26 Brûleur pour la gazéification des combustibles solides à grains fins ou pulvérulents Expired - Lifetime EP0367966B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3837586A DE3837586A1 (de) 1988-11-05 1988-11-05 Vergasungsbrenner fuer eine anlage fuer die vergasung von festen brennstoffen
DE3837586 1988-11-05

Publications (2)

Publication Number Publication Date
EP0367966A1 true EP0367966A1 (fr) 1990-05-16
EP0367966B1 EP0367966B1 (fr) 1992-12-09

Family

ID=6366554

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117730A Expired - Lifetime EP0367966B1 (fr) 1988-11-05 1989-09-26 Brûleur pour la gazéification des combustibles solides à grains fins ou pulvérulents

Country Status (8)

Country Link
EP (1) EP0367966B1 (fr)
CN (1) CN1020502C (fr)
DD (1) DD286031A5 (fr)
DE (2) DE3837586A1 (fr)
DK (1) DK169526B1 (fr)
ES (1) ES2036776T3 (fr)
PL (1) PL163597B1 (fr)
ZA (1) ZA897382B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437698A1 (fr) * 1989-12-19 1991-07-24 Krupp Koppers GmbH Procédé pour faire fonctionner une installation de gazéification de combustibles solides
WO2012041808A1 (fr) * 2010-10-01 2012-04-05 Shell Internationale Research Maatschappij B.V. Brûleur pour la gazéification d'un combustible solide

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1323261C (zh) * 2005-06-24 2007-06-27 北京航天动力研究所 一种可燃粉体旋流燃烧器
DE102006060867B4 (de) * 2006-12-22 2020-07-02 Khd Humboldt Wedag Gmbh Drehofenbrenner
US20130160856A1 (en) * 2011-12-22 2013-06-27 General Electric Company Multi-port injector system and method
DE102013106656A1 (de) * 2013-06-25 2015-01-08 Brinkmann Industrielle Feuerungssysteme Gmbh Brennerlanze und Verfahren zum Betreiben einer Brennerlanze für industrielle Thermoprozesse
CN105090944B (zh) * 2015-07-08 2017-11-10 安徽科达洁能股份有限公司 燃烧器、气流床气化炉及气流床气化炉的燃烧方法
DE102017204581A1 (de) * 2017-03-20 2018-09-20 Technische Universität Bergakademie Freiberg Brennerkopf zur Anordnung im Kopf eines Vergasers zur Primäroxidation gasförmiger Vergasungsstoffe in Vergasern nach dem Prinzip der autothermen Reformierung (ATR) oder der nichtkatalytischen Partialoxidation (POX)
DE202017107794U1 (de) 2017-12-20 2018-01-22 Choren Industrietechnik GmbH Brennerspitze und Pilotbrenner

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253385A1 (de) * 1972-10-31 1974-05-09 Texaco Development Corp Verfahren und brenner zur synthesegasherstellung
US4113445A (en) * 1977-01-31 1978-09-12 Texaco Development Corporation Process for the partial oxidation of liquid hydrocarbonaceous fuels
EP0098043A2 (fr) * 1982-06-29 1984-01-11 Texaco Development Corporation Brûleur et procédé d'oxydation partielle
US4443230A (en) * 1983-05-31 1984-04-17 Texaco Inc. Partial oxidation process for slurries of solid fuel
DE3440088A1 (de) * 1984-11-02 1986-05-07 Veba Oel Entwicklungs-Gesellschaft mbH, 4650 Gelsenkirchen Brenner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480559A (en) * 1983-01-07 1984-11-06 Combustion Engineering, Inc. Coal and char burner
DD251476A3 (de) * 1985-11-12 1987-11-18 Freiberg Brennstoffinst Kohlenstaubbrenner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2253385A1 (de) * 1972-10-31 1974-05-09 Texaco Development Corp Verfahren und brenner zur synthesegasherstellung
US4113445A (en) * 1977-01-31 1978-09-12 Texaco Development Corporation Process for the partial oxidation of liquid hydrocarbonaceous fuels
EP0098043A2 (fr) * 1982-06-29 1984-01-11 Texaco Development Corporation Brûleur et procédé d'oxydation partielle
US4443230A (en) * 1983-05-31 1984-04-17 Texaco Inc. Partial oxidation process for slurries of solid fuel
DE3440088A1 (de) * 1984-11-02 1986-05-07 Veba Oel Entwicklungs-Gesellschaft mbH, 4650 Gelsenkirchen Brenner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0437698A1 (fr) * 1989-12-19 1991-07-24 Krupp Koppers GmbH Procédé pour faire fonctionner une installation de gazéification de combustibles solides
WO2012041808A1 (fr) * 2010-10-01 2012-04-05 Shell Internationale Research Maatschappij B.V. Brûleur pour la gazéification d'un combustible solide
US8545726B2 (en) 2010-10-01 2013-10-01 Shell Oil Company Burner for the gasification of a solid fuel
AU2011310704B2 (en) * 2010-10-01 2015-05-21 Air Products And Chemicals, Inc. A burner for the gasification of a solid fuel
US10066832B2 (en) 2010-10-01 2018-09-04 Air Products And Chemicals, Inc. Burner for the gasification of a solid fuel

Also Published As

Publication number Publication date
ES2036776T3 (es) 1993-06-01
DE58902964D1 (de) 1993-01-21
CN1042596A (zh) 1990-05-30
DD286031A5 (de) 1991-01-10
DK169526B1 (da) 1994-11-21
PL163597B1 (pl) 1994-04-29
EP0367966B1 (fr) 1992-12-09
DE3837586A1 (de) 1990-05-10
ZA897382B (en) 1990-07-25
DK548589D0 (da) 1989-11-03
CN1020502C (zh) 1993-05-05
DK548589A (da) 1990-05-06
DE3837586C2 (fr) 1992-02-20

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