EP2085696A1 - Brûleur - Google Patents

Brûleur Download PDF

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Publication number
EP2085696A1
EP2085696A1 EP08101177A EP08101177A EP2085696A1 EP 2085696 A1 EP2085696 A1 EP 2085696A1 EP 08101177 A EP08101177 A EP 08101177A EP 08101177 A EP08101177 A EP 08101177A EP 2085696 A1 EP2085696 A1 EP 2085696A1
Authority
EP
European Patent Office
Prior art keywords
burner
igniter
oxygen
gas
containing gas
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.)
Withdrawn
Application number
EP08101177A
Other languages
German (de)
English (en)
Inventor
Johannes Cornelis De Jong
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
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP08101177A priority Critical patent/EP2085696A1/fr
Publication of EP2085696A1 publication Critical patent/EP2085696A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details
    • F23D14/70—Baffles or like flow-disturbing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14004—Special features of gas burners with radially extending gas distribution spokes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14642—Special features of gas burners with jet mixers with more than one gas injection nozzles or orifices for a single mixing tube

Definitions

  • the present invention pertains to a gas burner comprising a burner igniter connected to a gas supply line, which is particularly suitable for use as an igniter or heat-up burner in partial oxidation reactors for the manufacture of synthesis gas by partial oxidation of a liquid or gaseous hydrocarbon-containing fuel.
  • Partial oxidation processes are used for the production of, e.g., pressurized synthesis gas, fuel gas or reducing gas.
  • gaseous or liquid hydrocarbon fuels and oxygen-containing gas are introduced into a reactor via a main gasification burner as for example described in WO-A-96/03345 .
  • a flame is maintained in which the fuel reacts with the oxygen-containing gas to form a gas comprising carbon monoxide and hydrogen.
  • the temperature of the reactor and its refractory lining should be raised to a level sufficiently high to enable self-ignition of the fuel with the oxygen-containing gas.
  • an auxiliary heat-up burner can be used.
  • the heat-up burner must have sufficiently high capacity to increase the temperature of the reactor and refractory lining to such high level that the mixture of oxygen-containing gas and hydrocarbon fuel spontaneously ignites when these reactants are introduced via the main gasification burner into the reactor.
  • the object of the invention is achieved with a burner comprising an igniter burner downstream a feed or supply for a flow of an oxygen-containing gas, which igniter burner is connected to a first fuel supply line, wherein the burner comprises one or more secondary fuel supply lines, each leading to a burner mouth at a distance downstream the igniter burner.
  • the fuel supply lines and the burner mouth connected to said supply line is also referred to as a spud.
  • the oxygen-containing gas flows along the igniter burner and the spuds, typically with high flow velocity.
  • the igniter burner When a fuel gas is supplied via the fuel supply line to the igniter burner and the spuds, the igniter burner is ignited and the resulting flame, in turn, ignites the burner mouths of the spuds resulting in an enforced combined stable flame.
  • upstream and downstream refer to the flow direction of the oxygen containing gas flow in the burner.
  • the burner comprises igniting means such as a spark plug, a hot wire, or combinations thereof, to ignite the combustible mixture of fuel gas and oxygen-containing gas.
  • igniting means such as a spark plug, a hot wire, or combinations thereof, to ignite the combustible mixture of fuel gas and oxygen-containing gas.
  • the igniting means are preferably built-in within the igniter burner.
  • the igniter burner can be provided with a flame detector. Flame detection can for example take place by scanning ionization or UV.
  • Gas flow control means can be configured to control the fuel flow and the flow of oxygen-containing gas to create a combustion zone of the igniter burner having the downstream burner mouths of the spuds within its reach.
  • the burner can comprise a duct encasing the igniter burner and the spuds, the duct comprising an upstream inlet for oxygen-containing gas.
  • the duct can be an openended tube with the igniter burner being disposed along the longitudinal axis of the duct. The igniter burner and the spuds receive oxygen-containing gas from the stream flowing through the duct.
  • the burner mouth of one or more of the gas spuds is individually surrounded by a conical disk, widening in flow direction.
  • the burner mouth of the gas spud is provided with nozzle openings directed to guide the gas flow along the interior side of the conical disk.
  • the resulting divergent gas flow and the flow of oxygen containing gas creates a vacuum downstream of the gas spud.
  • the hot mixture of combustion flue gases will, as a result of this vacuum, flow back in the direction of the conical disk. This is found to result in a very stable flame.
  • the cone angle ⁇ is the angle between the longitudinal axis of the duct and the conical wall.
  • the cone angle ⁇ is within the range of 40 and 80 degrees.
  • the burner can comprise a single spud, but generally more spuds will be used, e.g., 3 - 12 spuds, preferably at equal distances and in a symmetrical arrangement relative to the igniter burner and the duct.
  • the fuel gas flow velocity and the flow velocity of the oxygen-containing gas can be varied within the operating range to meet the required thermal capacity. Excess air can be used to reduce the temperature of the burner exhaust gases.
  • the aerodynamic design of the burner and the distribution of fuel gas to ignition burner and spuds is made such that the spuds are within reach of the flame of the igniter burner such that the separate spuds are ignited by said flame.
  • the oxygen-containing gas can for example be ambient air, oxygen-enriched air, i.e., more than 21 mole % oxygen, or the like.
  • the fuel to be used is preferably a combustible gas, such as LPG or natural gas.
  • the duct will generally be a tubular body with a longitudinal axis, e.g. an open cylinder.
  • the igniter burner will generally be disposed centrally within the duct, e.g., along the longitudinal axis.
  • the inlet for the supply of oxygen-containing gas is located in the duct upstream the igniter burner. This creates a flow around the igniter burner and the spuds, along the duct wall.
  • the flow of oxygen-containing gas is guided to form an annular layer along the duct wall, which effectively cools the duct wall, the wall of the igniter burner and also the conical disks of the gas spuds.
  • spokes, vanes or eddy plates or the like can be used to influence the flow pattern of the oxygen-containing gas.
  • the burner according to the invention is particularly useful as a high duty, compact auxiliary burner or heat-up burner for a partial oxidation reactor.
  • the burner can be an integral part of such a main gasification burner, e.g. as a retractable part if so desired.
  • Figure 1 shows a burner 1 with a cylindrical tubular duct 2 in cross section encasing an igniter burner 3 shown in side view.
  • a gas supply line 4 is connected to the igniter burner 3 for the supply of a gaseous fuel.
  • An oxygen-containing gas enters the duct 2 via an upstream inlet (not shown).
  • arrows O indicate the flow direction of the oxygen-containing gas along the longitudinal axis 15 of the burner, whereas the arrows F indicate the flow direction of the fuel gas.
  • Gas supply line 4 of the igniter burner 3 leads to an open burner end 5 discharging the gas into a combustion zone 6.
  • the branching lines 7 are bent to form gas supply lines of equal length parallel with the longitudinal axis of the duct 2.
  • the branching lines 7 have open burner mouths 9 each being provided with a conical disk 8.
  • a fixed spark plug (not shown) is mounted on the igniter burner 3 sufficiently close to the combustion zone to enable ignition of a flame.
  • a flame detection rod 10 is mounted on igniter burner 3 to detect the presence or absence of a flame.
  • Oxygen-containing gas such as ambient air flows from the inlet along the igniter burner 3, branching supply lines 7 and conical disks 8.
  • FIG 2 gas is discharged from the spuds 7 with an outflow direction along the interior wall of the conical disks 8 to form a divergent conical gas outflow.
  • the flow of oxygen containing gas is guided by the conical disks 8.
  • Figure 2 also shows the cone angle ⁇ as the angle between the longitudinal axis 15 of the duct (2) and the conical wall 16 of conical disk 8.
  • the cone angle ⁇ is within the range of 40 and 80 degrees
  • the interior wall of the duct 2 is constantly cooled by a stable flow of oxygen-containing gas. This prevents overheating of the duct wall.
  • the spark plug When a fuel gas flow exits from the igniter burner 3 and oxygen-containing gas flows along the igniter burner 3, the spark plug can be activated to ignite a flame 11. While the fuel gas flows from the spuds 7 into the flow of oxygen-containing gas, the flame 11 ignites the gas discharged by the spuds 7 to form a front line of flames 12.
  • a concave partition 13 points towards the flame zone and abuts the conical disk 8 under right angles.
  • the partition 13 is provided with nozzle openings 14 adjacent the conical disk 8, guiding the fuel gas flow along the wall of the conical disk 8 to create a low pressure along the center line of the gas spud 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
EP08101177A 2008-01-31 2008-01-31 Brûleur Withdrawn EP2085696A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08101177A EP2085696A1 (fr) 2008-01-31 2008-01-31 Brûleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08101177A EP2085696A1 (fr) 2008-01-31 2008-01-31 Brûleur

Publications (1)

Publication Number Publication Date
EP2085696A1 true EP2085696A1 (fr) 2009-08-05

Family

ID=39651083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101177A Withdrawn EP2085696A1 (fr) 2008-01-31 2008-01-31 Brûleur

Country Status (1)

Country Link
EP (1) EP2085696A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012072667A1 (fr) 2010-12-01 2012-06-07 Shell Internationale Research Maatschappij B.V. Brûleur
JP2015183882A (ja) * 2014-03-20 2015-10-22 株式会社日本サーモエナー 先混合式ガスバーナを備えた燃焼装置
EP3301370A1 (fr) * 2016-09-30 2018-04-04 Deutsches Zentrum Für Luft- Und Raumfahrt E.V. (DLR) Tête de brûleur, système de brûleur et utilisation du système de brûleur
EP4163251A1 (fr) 2021-10-11 2023-04-12 Casale Sa Réacteur pour l'oxydation partielle d'hydrocarbures
RU2852013C2 (ru) * 2021-10-11 2025-12-02 Касале Са Реактор для частичного окисления углеводородов

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996003345A1 (fr) 1994-07-22 1996-02-08 Shell Internationale Research Maatschappij B.V. Procede de fabrication d'un gaz de synthese par oxydation partielle d'un combustible contenant un hydrocarbure gazeux a l'aide d'un bruleur co-annulaire a orifices multiples
US5551869A (en) * 1995-03-07 1996-09-03 Brais, Martres Et Associes Inc. Gas staged burner
DE10144472A1 (de) * 2001-09-10 2003-03-27 Gaswaerme Inst E V Atmosphärischer Brenner und Verfahren zu dessen Betrieb
EP1783426A1 (fr) * 2005-11-07 2007-05-09 Riello S.p.A. Tête de combustion pour brûleur à gaz
DE102006005386A1 (de) * 2006-02-03 2007-08-16 Uhde Gmbh Gasbrenner mit optimierter Düsenanordnung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996003345A1 (fr) 1994-07-22 1996-02-08 Shell Internationale Research Maatschappij B.V. Procede de fabrication d'un gaz de synthese par oxydation partielle d'un combustible contenant un hydrocarbure gazeux a l'aide d'un bruleur co-annulaire a orifices multiples
US5551869A (en) * 1995-03-07 1996-09-03 Brais, Martres Et Associes Inc. Gas staged burner
DE10144472A1 (de) * 2001-09-10 2003-03-27 Gaswaerme Inst E V Atmosphärischer Brenner und Verfahren zu dessen Betrieb
EP1783426A1 (fr) * 2005-11-07 2007-05-09 Riello S.p.A. Tête de combustion pour brûleur à gaz
DE102006005386A1 (de) * 2006-02-03 2007-08-16 Uhde Gmbh Gasbrenner mit optimierter Düsenanordnung

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012072667A1 (fr) 2010-12-01 2012-06-07 Shell Internationale Research Maatschappij B.V. Brûleur
CN103228990A (zh) * 2010-12-01 2013-07-31 国际壳牌研究有限公司 燃烧器
JP2015183882A (ja) * 2014-03-20 2015-10-22 株式会社日本サーモエナー 先混合式ガスバーナを備えた燃焼装置
EP3301370A1 (fr) * 2016-09-30 2018-04-04 Deutsches Zentrum Für Luft- Und Raumfahrt E.V. (DLR) Tête de brûleur, système de brûleur et utilisation du système de brûleur
EP4163251A1 (fr) 2021-10-11 2023-04-12 Casale Sa Réacteur pour l'oxydation partielle d'hydrocarbures
WO2023061786A1 (fr) 2021-10-11 2023-04-20 Casale Sa Réacteur pour l'oxydation partielle d'hydrocarbures
CN117980253A (zh) * 2021-10-11 2024-05-03 卡萨尔公司 用于部分氧化碳氢化合物的反应器
RU2852013C2 (ru) * 2021-10-11 2025-12-02 Касале Са Реактор для частичного окисления углеводородов

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