EP2218965A1 - Brenner mit niedrigen NOx-Werten - Google Patents

Brenner mit niedrigen NOx-Werten Download PDF

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Publication number
EP2218965A1
EP2218965A1 EP09152909A EP09152909A EP2218965A1 EP 2218965 A1 EP2218965 A1 EP 2218965A1 EP 09152909 A EP09152909 A EP 09152909A EP 09152909 A EP09152909 A EP 09152909A EP 2218965 A1 EP2218965 A1 EP 2218965A1
Authority
EP
European Patent Office
Prior art keywords
ports
primary
fuel gas
combustion zone
fuel
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Withdrawn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
EP09152909A
Other languages
English (en)
French (fr)
Inventor
Erwin Platvoet
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.)
Total Petrochemicals Research Feluy SA
Original Assignee
Total Petrochemicals Research Feluy SA
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 Total Petrochemicals Research Feluy SA filed Critical Total Petrochemicals Research Feluy SA
Priority to EP09152909A priority Critical patent/EP2218965A1/de
Priority to PCT/EP2010/051791 priority patent/WO2010092150A1/en
Priority to EP10704803A priority patent/EP2396596A1/de
Priority to US13/148,496 priority patent/US20120037146A1/en
Publication of EP2218965A1 publication Critical patent/EP2218965A1/de
Withdrawn legal-status Critical Current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
    • F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • 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
    • F23D14/48—Nozzles
    • 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
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/20—Burner staging

Definitions

  • the present invention relates to a low NOx burner.
  • Nitrogen oxides NO and NO2 are produced in three different ways in furnaces and boilers:
  • the burner apparatus includes a refractory burner tile having a base portion and a wall portion, the wall portion extending into the furnace, surrounding a central area of the base portion and having exterior sides which are slanted. Means are attached to the burner tile for mixing a portion of the fuel gas with the air and discharging the resulting mixture into a primary burning zone in the furnace from within the space defined by the wall portion of the burner tile. At least one secondary fuel gas nozzle means positioned for discharging the remaining portion of the fuel gas adjacent to an external slanted side of the wall portion whereby the fuel gas mixes with flue gases and air in the furnace and burns in a secondary burning zone therein.
  • US 5,275,552 is very close to US 5,195,884 .
  • a problem of these fuel tips is overheating and internal fouling/coking caused by thermal cracking of the fuel. This applies especially to the staged fuel tips. They are typically exposed to the furnace radiation because they need to entrain flue gas in order to create a fuel rich combustion zone. In order to minimize radiation exposure it is necessary to minimze the exposed surface and keep the tips short.
  • the present invention simplifies the design by combining the primary and secondary fuel stages into one single riser, without increasing the fouling tendency.
  • Basis of the design is a bluff body attached to the burner tip, located close to the ports which deliver the primary fuel gas, said bluff body is designed to produce, in the vicinity of the said ports, an air speed as low as possible, advantageously lower than the flame speed, such as the said fuel gas is given sufficient residence time to ignite.
  • the bluff body also provides near-burner recirculations, which improves ignition and flame stability.
  • Secondary ports, to deliver the secondary fuel gas are located in the flue gas zone (or outside the combustion zone) in order to create a fuel-rich zone.
  • US 4,604,048 (and also US 4,645,449 ) relates to a burner in which fuel is discharged from a nozzle disposed within a burner housing, air is introduced into the housing which is mixed with the fuel and the resulting fuel-air mixture is ignited and combusted.
  • a first portion of the fuel is discharged from the nozzle through one or more orifices therein whereby the fuel mixes with air and provides an ignition zone adjacent the nozzle.
  • a second portion of the fuel is discharged from the nozzle by way of one or more additional orifices whereby the second portion of fuel is distributed in a turbulent pattern which exposes the fuel to a quantity of air in excess of that required for the stoichiometric burning thereof and causes the fuel to burn in a primary combustion zone.
  • the present invention is a burner tip for the combustion of fuel gas in the combustion zone of a furnace, comprising a burner tube having a longitudinal axis and having a dowstream end and an upstream end for receiving the fuel gas, wherein, the furnace comprises means to introduce an effective amount of air into the combustion zone to cause the combustion of the fuel gas, the burner tube extends through an opening in the wall or floor into the combustion zone, the burner tube comprises a plurality of primary ports to deliver the primary fuel gas in the combustion zone, said primary ports are located in the combustion zone in order to create the fuel-lean combustion zone, a bluff body is attached to the tube, located close to the primary ports which deliver the primary fuel gas and between said ports and the upstream end of the burner tube, the bluff body is designed to produce, in the vicinity of the ports which deliver the primary fuel gas, an air speed as low as possible, advantageously lower than the flame speed, such as the said primary fuel gas is given sufficient residence time to ignite, the burner tube comprises a plurality of secondary ports to deliver the secondary fuel gas
  • the flame stabilization is ensured by the bluff body, for example fins or a perforated plate, which has been welded to the tip just below the primary fuel ports.
  • the flame stabilizer creates a recirculation zone for the air in which the primary fuel is given sufficient residence time to ignite.
  • the purpose of said secondary ports and optional subsequent ports to deliver the fuel gas is to stage the combustion zone into fuel-lean and fuel-rich zones. This approach reduces the NOx formation chemistry
  • the bluff body can be any shape which produce, in the vicinity of the ports which deliver the primary fuel gas, an air speed as low as possible, advantageously lower than the flame speed, such as the said primary fuel gas is given sufficient residence time to ignite.
  • the bluff body can be a plurality of fins or a cone having a symetrical axis essentially in line with the longitudinal axis of the burner tube.
  • the fins and/or the cone can be made of a solid or perforated plate.
  • the burner tip is reduced in diameter after each fuel gas injection to maintain a high velocity inside the tip.
  • a burner tip having primary ports and secondary ports has a reduced diameter between the primary ports and secondary ports as compared with the section between the upstream end and the primary ports.
  • the reduction in diameter is done gradually (e.g. over a length of about 3 to about 4 diameters) in order to prevent recirculations and dead zones.
  • the internal diameters are advantageously chosen such that a minimum fuel gas velocity of about 30 m/s, preferably about 40 m/s is achieved over the entire length of the burner tip. This means that if tertiary fuel ports are added, the tip is again reduced in diameter.
  • Figure 1 shows an example with primary and secondary fuel ports and a conical perforated plate type flame stabilizer.

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)
EP09152909A 2009-02-16 2009-02-16 Brenner mit niedrigen NOx-Werten Withdrawn EP2218965A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09152909A EP2218965A1 (de) 2009-02-16 2009-02-16 Brenner mit niedrigen NOx-Werten
PCT/EP2010/051791 WO2010092150A1 (en) 2009-02-16 2010-02-12 LOW NOx BURNER
EP10704803A EP2396596A1 (de) 2009-02-16 2010-02-12 BRENNER MIT NIEDRIGEN NOx-WERTEN
US13/148,496 US20120037146A1 (en) 2009-02-16 2010-02-12 Low nox burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09152909A EP2218965A1 (de) 2009-02-16 2009-02-16 Brenner mit niedrigen NOx-Werten

Publications (1)

Publication Number Publication Date
EP2218965A1 true EP2218965A1 (de) 2010-08-18

Family

ID=40833467

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09152909A Withdrawn EP2218965A1 (de) 2009-02-16 2009-02-16 Brenner mit niedrigen NOx-Werten
EP10704803A Withdrawn EP2396596A1 (de) 2009-02-16 2010-02-12 BRENNER MIT NIEDRIGEN NOx-WERTEN

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10704803A Withdrawn EP2396596A1 (de) 2009-02-16 2010-02-12 BRENNER MIT NIEDRIGEN NOx-WERTEN

Country Status (3)

Country Link
US (1) US20120037146A1 (de)
EP (2) EP2218965A1 (de)
WO (1) WO2010092150A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20131223A1 (it) * 2013-07-22 2015-01-23 Ceba S R L Bruciatore radiale
CN112856407A (zh) * 2021-01-15 2021-05-28 浙江大学 一种贫燃富燃交替式催化燃烧器及运行方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8733543B2 (en) * 2011-05-12 2014-05-27 Pro-Cyl, Llc Environmentally friendly fuel gas within a refillable and non-corrosive gas cylinder
US9038576B2 (en) 2013-05-22 2015-05-26 Plum Combustion, Inc. Ultra low NOx burner using distributed direct fuel injection
JP6310580B2 (ja) 2014-06-30 2018-04-11 チュビタック （ターキー ビリムセル ヴィ テクノロジク アラスティルマ クルム）Ｔｕｂｉｔａｋ （Ｔｕｒｋｉｙｅ Ｂｉｌｉｍｓｅｌ Ｖｅ Ｔｅｋｎｏｌｏｊｉｋ Ａｒａｓｔｉｒｍａ Ｋｕｒｕｍｕ） ハイブリッド均質触媒燃焼システム

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604048A (en) 1985-05-06 1986-08-05 John Zink Company Methods and apparatus for burning fuel with low NOx formation
US4645449A (en) 1985-05-06 1987-02-24 John Zink Company Methods and apparatus for burning fuel with low nox formation
EP0314910A2 (de) * 1987-11-04 1989-05-10 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Brennersystem zur NOx-armen Verbrennung von schwerem Heizöl
US5195884A (en) 1992-03-27 1993-03-23 John Zink Company, A Division Of Koch Engineering Company, Inc. Low NOx formation burner apparatus and methods
US5275552A (en) 1992-03-27 1994-01-04 John Zink Company, A Division Of Koch Engineering Co. Inc. Low NOx gas burner apparatus and methods
US5813846A (en) * 1997-04-02 1998-09-29 North American Manufacturing Company Low NOx flat flame burner
US20040006991A1 (en) * 2002-07-15 2004-01-15 Peter Stuttaford Fully premixed secondary fuel nozzle with improved stability and dual fuel capability
US6695609B1 (en) 2002-12-06 2004-02-24 John Zink Company, Llc Compact low NOx gas burner apparatus and methods
US7198482B2 (en) 2004-02-10 2007-04-03 John Zink Company, Llc Compact low NOx gas burner apparatus and methods
EP1852656A1 (de) * 2006-04-04 2007-11-07 Nauchno-proizvodstvennoe predpriatie "EST" Verfahren zur Kraftstoffverbrennung und Verbrennungsvorrichtung

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US3349826A (en) * 1965-06-09 1967-10-31 Babcock & Wilcox Co Combination oil and gas burner
US3586242A (en) * 1969-12-22 1971-06-22 Carrier Corp Fuel burning apparatus
CH532752A (it) * 1971-02-25 1973-01-15 Finterm Spa Testa di combustione per bruciatori
US3732059A (en) * 1971-05-28 1973-05-08 Zink Co John Burner for gaseous fuels in reduced oxygen and/or significant velocity atmosphere
CA1066608A (en) * 1974-11-18 1979-11-20 Akito Komori Fuel combustion apparatus
US4157890A (en) * 1977-09-26 1979-06-12 John Zink Company NOx abatement in gas burning where air is premixed with gaseous fuels prior to burning
US4162140A (en) * 1977-09-26 1979-07-24 John Zink Company NOx abatement in burning of gaseous or liquid fuels
US4383820A (en) * 1980-10-10 1983-05-17 Technology Application Services Corporation Fuel gas burner and method of producing a short flame
JPS60223910A (ja) * 1984-04-23 1985-11-08 Babcock Hitachi Kk ガスバ−ナ構造
FR2622277B1 (fr) * 1987-10-23 1990-02-23 Mecanique Gle Foyers Turbine S Bruleur a gaz pour le chauffage d'un courant d'air ou autre gaz comburant
JP2678529B2 (ja) * 1991-03-11 1997-11-17 三洋電機株式会社 ガスバーナー
KR960005758B1 (ko) * 1991-05-07 1996-05-01 산요덴끼 가부시끼가이샤 가스 버어너
JP3526938B2 (ja) * 1994-12-26 2004-05-17 東京瓦斯株式会社 フラットフレームバーナ
US5863192A (en) * 1995-04-19 1999-01-26 Tokyo Gas Company, Ltd. Low nitrogen oxides generating method and apparatus
WO1998051966A1 (en) * 1997-05-13 1998-11-19 Maxon Corporation Low-emissions industrial burner
FR2804748B1 (fr) * 2000-02-04 2002-04-12 Pillard Chauffage Perfectionnement aux bruleurs a gaz pour le chauffage d'un gaz circulant dans un conduit
US6773256B2 (en) * 2002-02-05 2004-08-10 Air Products And Chemicals, Inc. Ultra low NOx burner for process heating
DE102006005386B4 (de) * 2006-02-03 2009-04-09 Uhde Gmbh Gasbrenner mit optimierter Düsenanordnung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4604048A (en) 1985-05-06 1986-08-05 John Zink Company Methods and apparatus for burning fuel with low NOx formation
US4645449A (en) 1985-05-06 1987-02-24 John Zink Company Methods and apparatus for burning fuel with low nox formation
EP0314910A2 (de) * 1987-11-04 1989-05-10 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Brennersystem zur NOx-armen Verbrennung von schwerem Heizöl
US5195884A (en) 1992-03-27 1993-03-23 John Zink Company, A Division Of Koch Engineering Company, Inc. Low NOx formation burner apparatus and methods
US5275552A (en) 1992-03-27 1994-01-04 John Zink Company, A Division Of Koch Engineering Co. Inc. Low NOx gas burner apparatus and methods
US5813846A (en) * 1997-04-02 1998-09-29 North American Manufacturing Company Low NOx flat flame burner
US20040006991A1 (en) * 2002-07-15 2004-01-15 Peter Stuttaford Fully premixed secondary fuel nozzle with improved stability and dual fuel capability
US6695609B1 (en) 2002-12-06 2004-02-24 John Zink Company, Llc Compact low NOx gas burner apparatus and methods
US7198482B2 (en) 2004-02-10 2007-04-03 John Zink Company, Llc Compact low NOx gas burner apparatus and methods
EP1852656A1 (de) * 2006-04-04 2007-11-07 Nauchno-proizvodstvennoe predpriatie "EST" Verfahren zur Kraftstoffverbrennung und Verbrennungsvorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20131223A1 (it) * 2013-07-22 2015-01-23 Ceba S R L Bruciatore radiale
CN112856407A (zh) * 2021-01-15 2021-05-28 浙江大学 一种贫燃富燃交替式催化燃烧器及运行方法
CN112856407B (zh) * 2021-01-15 2022-03-18 浙江大学 一种贫燃富燃交替式催化燃烧器及运行方法

Also Published As

Publication number Publication date
US20120037146A1 (en) 2012-02-16
WO2010092150A1 (en) 2010-08-19
EP2396596A1 (de) 2011-12-21

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