US20110146546A1 - Method for burning refining residues - Google Patents

Method for burning refining residues Download PDF

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Publication number
US20110146546A1
US20110146546A1 US11/587,513 US58751307A US2011146546A1 US 20110146546 A1 US20110146546 A1 US 20110146546A1 US 58751307 A US58751307 A US 58751307A US 2011146546 A1 US2011146546 A1 US 2011146546A1
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US
United States
Prior art keywords
hearth
injectors
injection
residues
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.)
Abandoned
Application number
US11/587,513
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English (en)
Inventor
Jean-Xavier Morin
Christian Enault
Jean-Claude Foucher
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.)
General Electric Technology GmbH
Original Assignee
Alstom Technology 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 Alstom Technology AG filed Critical Alstom Technology AG
Assigned to ALSTOM TECHNOLOGY LTD reassignment ALSTOM TECHNOLOGY LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ENAULT, CHRISTIAN, FOUCHER, JEAN-CLAUDE, MORIN, JEAN-XAVIER
Publication of US20110146546A1 publication Critical patent/US20110146546A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/007—Supplying oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C1/00—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
    • F23C5/08—Disposition of burners
    • F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D1/00—Burners for combustion of pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/008—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for liquid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2214/00—Cooling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Definitions

  • the present invention relates to a method and a device for burning residues from refining petroleum with minimum emission of nitrogen oxides and dust.
  • gasification may be used, either integrated into a combined cycle or taking the form of a deep conversion process that converts the residues to an economically viable final residue such as petroleum coke, for example.
  • the object of the present invention is to propose a method for the combustion of the residues previously cited and an injection device, both of which may be used in existing installations, in particular in tangential heating boilers, and which significantly reduce the emission of pollutants, primarily oxides of nitrogen and unburned carbon dust.
  • the method according to the invention for the combustion of residues from the refining of petroleum in a boiler comprising a hearth and injectors is characterized in that gas containing oxygen is injected into the hottest region of said hearth which, situated in the immediate vicinity of the burner, is one of cyclonic flow, i.e. one in which the combustion gases are caused to rotate about a vertical axis to ensure that they are totally converted, leaving no unburned substances.
  • Injection into the very hot region of the hearth ensures high-temperature cracking of the residues and their conversion into basic compounds (CO, H 2 , CH 4 , CO 2 ) that are easily combustible and therefore less pollutant, because of the reduction of unburned carbon dust.
  • the method applies in particular to tangential heating boilers.
  • recycled flue gases are simultaneously injected into the hottest region of the hearth. Simultaneous injection of recycled flue gases imparts movement to the jet of gas containing oxygen encouraging penetration of said gas into the hearth and in particular into the cyclonic hottest region. Injecting recycled flue gases also facilitates the homogenization of the combustion products resulting from cracking of the residues in the hearth, and thereby prevents temperature peaks in the flue gases in the vicinity of the heat exchangers disposed over the combustion region. Increased production of oxides of nitrogen (NOx) in the hot region is compensated by the low production of nitrogen oxide resulting from staged combustion using either staged air or staged fuel.
  • NOx oxides of nitrogen
  • injection is effected by injectors disposed in the corners of the hearth.
  • the injection position will be determined as a function of the nature of the residue to be burned.
  • One or more injection levels may be provided as a function of the peak temperature in the hearth facing the barge-shaped arrangement of the fuel injector and as a function of the expected reduction in nitrogen oxides resulting from the staged combustion created in this way by combining injection of air and fuel and injection of recycled flue gases, oxygen and residue.
  • injection is effected by injectors on the lateral walls of the hearth.
  • the injectors are at the middle of each of the lateral walls of the hearth.
  • the injectors are on the four walls.
  • the injectors are on two facing walls.
  • the device in accordance with the invention for injecting gas into a boiler hearth is characterized in that it is installed in flue gas recirculation trunking and comprises concentric gas injection tubes. Combining two injections creates a hot conversion region. These devices may be installed at several locations in the hearth of the boiler.
  • the device is substantially perpendicular to the walls of the hearth in a horizontal plane.
  • the location, inclination and deviation in the horizontal plane of the device are adapted as a function of the architecture of the boiler to encourage penetration into the hot combustion vortex region.
  • the recirculated flue gas feed trunking may therefore be bent, which induces additional, substantially horizontal rotation of the incoming flow, and therefore creates or increases rotary flow about a substantially vertical axis of the flue gases recirculated into the hearth.
  • the device is substantially inclined vertically towards the bottom of the hearth.
  • the angle of inclination is preferably less than 45°.
  • the device comprises a cooling circuit.
  • the temperature at the tip of the injection device is such that it is necessary to cool it.
  • the device is swept by a gas to prevent it from becoming blocked by dust coming from the hearth.
  • the device is retractable. It is therefore possible to carry out maintenance with the boiler in operation.
  • the device comprises a gas pilot light which encourages self-ignition of the residue.
  • FIG. 1 is a view in vertical section of a boiler according to the invention
  • FIG. 2 is a view in section of the boiler according to the invention
  • FIG. 3 is a detailed view in section of an injector according to the invention in an injection position
  • FIG. 4 is a detailed view in section of the FIG. 3 injector in a retracted position
  • FIG. 5 is a detailed view in section of the injector pipe.
  • the boiler 1 comprises a hearth 2 to which is fed fuel 3 surrounded by hot air 4 .
  • Injectors 5 inject oxygen or gas containing oxygen 50 , the residue 51 , and (where applicable) recycled flue gases 52 .
  • a cooling liquid 53 such as water flows in the injectors 5 to cool them.
  • the injectors 5 are placed at the height of the hottest region 20 of the hearth 2 . Additional air is injected via the injector 6 to bring about staged combustion, in order to reduce the emission of oxides of nitrogen, the injectors 6 are located above the injectors 5 so that the flue gases remain between the two injection levels 5 and 6 for a period from 0.2 second to 5 seconds.
  • FIG. 2 shows the FIG. 1 boiler 1 from above, at the height of the hot region 20 .
  • the fuel 3 and the hot air 4 are injected in the corners of the boiler 1 .
  • the injectors 5 are placed at the middle of the lateral walls 21 of the hearth 2 , but they could be placed in the corners.
  • the injection of the fuel 3 in the corners creates a vertical axis vortex 200 to which the residue 51 and the gas 50 are steered.
  • the injector 5 shown in detail in FIG. 3 comprises a feed pipe 500 for oxygen (or a gas containing oxygen) 50 , a pipe 510 for the residue 51 , a feed pipe 530 for the cooling liquid 53 and a return pipe 531 for said liquid 53 .
  • the recycled flue gases 52 arrive via a pipe 520 .
  • the injector 5 is inclined downward at an angle of less than 45° to encourage penetration of the residue into the hot region 20 .
  • Below a region 22 for gasification of the residue 51 is a combustion region 23 and above it is a post-combustion region 24 .
  • the injection pipe 54 discharging into the hearth 2 is shown in FIG. 5 and is made up of four concentric cylinders; the residue 51 flows in the central cylinder 540 , the gas 50 enriched with oxygen flows between the cylinder 540 and the next cylinder 541 , and the cooling liquid 53 flows between the cylinders 541 , 542 and 543 , making a return trip in the pipe 54 with the outward flow between the outermost cylinders 542 and 543 to facilitate cooling and the return flow between the innermost cylinders 541 and 542 .
  • the flue gases 52 arrive via the pipe 520 and enter the pipe 521 of the injector 5 from which they are directed into the hearth 2 (see FIG. 3 ).
  • FIG. 4 shows the injector 5 in a retracted position, the assembly comprising the pipe 54 and the pipes 530 , 531 , 510 and 500 being retracted into the feed pipe 521 for the flue gases 52 so that this assembly of the injector 5 may be maintained in service.
  • the execution of the method is described next.
  • the fuel 3 and the hot air 4 are injected into the lower portion 23 of the hearth 2 .
  • Combustion develops and the region 20 above the burner 30 is the hottest region.
  • the residues 51 and the gas 50 enriched with oxygen are injected into this region 20 , in which the residues 51 are cracked and reduced to combustible basic compounds.
  • Simultaneous concentric injection of recycled flue gases 52 via the injectors 5 imparts movement to the jet of oxygen (or gas enriched with oxygen) 50 and to the residue 51 encouraging penetration of the residue 51 and the gas 50 into the vertical axis cyclonic flow region 200 of the hearth 2 and creates a hot conversion region encouraging the combustion of the residue 51 .
  • the number of injectors 5 to be installed in the hearth 2 is decided as a function of the properties of the residue 51 to be burned.
  • the injectors could be disposed at one or more levels as a function of the heat flow permitted by the walls 21 and the requirement to smoothe temperature peaks in the flue gases where they impinge on the exchanger bundles 7 .
  • the inclination of the injectors 5 and their deviation in the vertical direction is less than 45°.
  • the injection system 5 comprises a gas pilot light to encourage self-ignition of the residue 51 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
US11/587,513 2004-04-30 2005-04-28 Method for burning refining residues Abandoned US20110146546A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0450840A FR2869673B1 (fr) 2004-04-30 2004-04-30 Procede pour la combustion de residus de raffinage
FR0450840 2004-04-30
PCT/FR2005/050284 WO2005111498A1 (fr) 2004-04-30 2005-04-28 Procede pour la combustion de residus de raffinage

Publications (1)

Publication Number Publication Date
US20110146546A1 true US20110146546A1 (en) 2011-06-23

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US11/587,513 Abandoned US20110146546A1 (en) 2004-04-30 2005-04-28 Method for burning refining residues

Country Status (7)

Country Link
US (1) US20110146546A1 (fr)
EP (1) EP1740886A1 (fr)
CN (1) CN1977128B (fr)
CA (1) CA2564639C (fr)
FR (1) FR2869673B1 (fr)
MX (1) MXPA06012429A (fr)
WO (1) WO2005111498A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140038115A1 (en) * 2011-11-14 2014-02-06 Fei Chen Dense/Dilute Pulverized Coal Separator Structure of Single-fireball Octagonal Direct-flow Burner
WO2016055511A1 (fr) * 2014-10-07 2016-04-14 Linde Aktiengesellschaft Incinération de déchets
WO2016093341A1 (fr) * 2014-12-12 2016-06-16 川崎重工業株式会社 Système de combustion
JP2017190920A (ja) * 2016-04-14 2017-10-19 日工株式会社 バーナ装置及びその燃焼方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110925744B (zh) * 2019-12-11 2021-09-17 中国能源建设集团广东省电力设计研究院有限公司 冷烟再循环机组导热油回收旁路烟气热量系统及控制方法

Citations (11)

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Publication number Priority date Publication date Assignee Title
US4878442A (en) * 1988-06-17 1989-11-07 The United States Of America As Represented By The Department Of Energy Nox control for high nitric oxide concentration flows through combustion-driven reduction
US5020454A (en) * 1990-10-31 1991-06-04 Combustion Engineering, Inc. Clustered concentric tangential firing system
US5129333A (en) * 1991-06-24 1992-07-14 Aga Ab Apparatus and method for recycling waste
US5217363A (en) * 1992-06-03 1993-06-08 Gaz Metropolitan & Co., Ltd. And Partnership Air-cooled oxygen gas burner assembly
US5273212A (en) * 1991-12-05 1993-12-28 Hoechst Aktiengesellschaft Burner with a cooling chamber having ceramic platelets attached to a downstream face
US6260491B1 (en) * 1999-09-13 2001-07-17 Foster Wheeler Corporation Nozzle for feeding combustion providing medium into a furnace
US6325002B1 (en) * 1999-02-03 2001-12-04 Clearstack Combustion Corporation Low nitrogen oxides emissions using three stages of fuel oxidation and in-situ furnace flue gas recirculation
US6422160B1 (en) * 1998-02-18 2002-07-23 Loesche Gmbh Apparatus for the combustion of vanadium-containing fuels
US20030091948A1 (en) * 2001-01-11 2003-05-15 Bool Lawrence E. Combustion in a multiburner furnace with selective flow of oxygen
US6702569B2 (en) * 2001-01-11 2004-03-09 Praxair Technology, Inc. Enhancing SNCR-aided combustion with oxygen addition
US20050058958A1 (en) * 2003-09-16 2005-03-17 Hisashi Kobayashi Low NOx combustion using cogenerated oxygen and nitrogen streams

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD127936A1 (de) * 1976-09-03 1977-10-19 Paul Fischer Verfahren zur verbrennung von schlaemmen aus der abwasserreinigung
US6314896B1 (en) * 1999-06-10 2001-11-13 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for operating a boiler using oxygen-enriched oxidants
US7185595B2 (en) * 2001-09-07 2007-03-06 Air Products & Chemicals, Inc. Method for largely unsupported combustion of petroleum coke

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4878442A (en) * 1988-06-17 1989-11-07 The United States Of America As Represented By The Department Of Energy Nox control for high nitric oxide concentration flows through combustion-driven reduction
US5020454A (en) * 1990-10-31 1991-06-04 Combustion Engineering, Inc. Clustered concentric tangential firing system
US5129333A (en) * 1991-06-24 1992-07-14 Aga Ab Apparatus and method for recycling waste
US5273212A (en) * 1991-12-05 1993-12-28 Hoechst Aktiengesellschaft Burner with a cooling chamber having ceramic platelets attached to a downstream face
US5217363A (en) * 1992-06-03 1993-06-08 Gaz Metropolitan & Co., Ltd. And Partnership Air-cooled oxygen gas burner assembly
US6422160B1 (en) * 1998-02-18 2002-07-23 Loesche Gmbh Apparatus for the combustion of vanadium-containing fuels
US6325002B1 (en) * 1999-02-03 2001-12-04 Clearstack Combustion Corporation Low nitrogen oxides emissions using three stages of fuel oxidation and in-situ furnace flue gas recirculation
US6260491B1 (en) * 1999-09-13 2001-07-17 Foster Wheeler Corporation Nozzle for feeding combustion providing medium into a furnace
US20030091948A1 (en) * 2001-01-11 2003-05-15 Bool Lawrence E. Combustion in a multiburner furnace with selective flow of oxygen
US6699030B2 (en) * 2001-01-11 2004-03-02 Praxair Technology, Inc. Combustion in a multiburner furnace with selective flow of oxygen
US6702569B2 (en) * 2001-01-11 2004-03-09 Praxair Technology, Inc. Enhancing SNCR-aided combustion with oxygen addition
US20050058958A1 (en) * 2003-09-16 2005-03-17 Hisashi Kobayashi Low NOx combustion using cogenerated oxygen and nitrogen streams

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140038115A1 (en) * 2011-11-14 2014-02-06 Fei Chen Dense/Dilute Pulverized Coal Separator Structure of Single-fireball Octagonal Direct-flow Burner
WO2016055511A1 (fr) * 2014-10-07 2016-04-14 Linde Aktiengesellschaft Incinération de déchets
WO2016093341A1 (fr) * 2014-12-12 2016-06-16 川崎重工業株式会社 Système de combustion
JP2016114268A (ja) * 2014-12-12 2016-06-23 川崎重工業株式会社 燃焼システム
US10563863B2 (en) 2014-12-12 2020-02-18 Kawasaki Jukogyo Kabushiki Kaisha Combustion system
JP2017190920A (ja) * 2016-04-14 2017-10-19 日工株式会社 バーナ装置及びその燃焼方法

Also Published As

Publication number Publication date
CN1977128A (zh) 2007-06-06
CN1977128B (zh) 2011-11-09
CA2564639A1 (fr) 2005-11-24
FR2869673B1 (fr) 2010-11-19
WO2005111498A1 (fr) 2005-11-24
FR2869673A1 (fr) 2005-11-04
CA2564639C (fr) 2012-12-04
EP1740886A1 (fr) 2007-01-10
MXPA06012429A (es) 2007-01-31

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AS Assignment

Owner name: ALSTOM TECHNOLOGY LTD, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MORIN, JEAN-XAVIER;ENAULT, CHRISTIAN;FOUCHER, JEAN-CLAUDE;REEL/FRAME:019517/0407

Effective date: 20061204

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION