EP0307764B1 - Vorrichtung zum Eintrag von Gasen in Brennräume sowie Verfahren zur Minderung von Schadstoffen bei Verbrennungsvorgängen - Google Patents

Vorrichtung zum Eintrag von Gasen in Brennräume sowie Verfahren zur Minderung von Schadstoffen bei Verbrennungsvorgängen

Info

Publication number
EP0307764B1
EP0307764B1 EP88114523A EP88114523A EP0307764B1 EP 0307764 B1 EP0307764 B1 EP 0307764B1 EP 88114523 A EP88114523 A EP 88114523A EP 88114523 A EP88114523 A EP 88114523A EP 0307764 B1 EP0307764 B1 EP 0307764B1
Authority
EP
European Patent Office
Prior art keywords
gas
combustion
collecting pipe
combustion space
gases
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
EP88114523A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0307764A1 (de
Inventor
Klaus-Peter Dr. Ochel
Joachim Krupp
Josef Heger
Martin Schweitzer
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.)
Bayer AG
Erdoelchemie GmbH
Original Assignee
Bayer AG
Erdoelchemie 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 Bayer AG, Erdoelchemie GmbH filed Critical Bayer AG
Publication of EP0307764A1 publication Critical patent/EP0307764A1/de
Application granted granted Critical
Publication of EP0307764B1 publication Critical patent/EP0307764B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/84—Flame spreading or otherwise shaping
    • 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
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
    • F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel

Definitions

  • the present invention relates to a combustion chamber with at least one gas collection tube for introducing aerosols, gases and / or gas-solid mixtures and a method for reducing the pollutants or pollutants occurring in the combustion of gases, aerosols and / or gas-solid mixtures in a combustion chamber.
  • an exhaust gas containing nitrogen compounds is disposed of in a 2-stage combustion chamber, the first combustion chamber being operated with a lack of oxygen and the second with a corresponding excess of oxygen.
  • a heat exchanger is placed between the two combustion chambers. Plants with 2-stage combustion are from R. Römer, W. Leukel, A. Stoeckel, G. Hemmer: Influencing nitrogen oxide formation from fuel-bound nitrogen by means of firing measures, Chem.-Ing.-Techn. MS 875/81 or 0. Carlowitz, H. Wiebe, U. Gravemeier Combustion of vapors containing ammonia and nitrogen oxides in a swirl combustor system, VDI reports No. 423/81, known.
  • incinerators are primarily used to reduce pollutants, although a significantly lower amount of flue gas is under discussion compared to power plant firing systems.
  • An upstream connection of a pre-combustion chamber operated with insufficient air to a steam boiler with forced circulation is ruled out due to the changed heat release and the associated change in the local heat transfer.
  • suitable burners can reduce NO x emissions.
  • Targeted air and fuel supply create zones within the burner flame in which there is a lack of air and accordingly the CO that is suitable for NO x reduction is created.
  • the effect of these burners is further increased in that the addition of oxygen-depleted combustion air, which is usually available as a mixture of fresh air and recirculated flue gas, both reduces the flame temperature and the oxygen supply at a suitable point.
  • This technology can only be used for small volume flows of exhaust gas containing nitrogen compounds. This exhaust gas would have to be supplied in the primary region of the flame, since otherwise there is no or only very incomplete mixing with the reducing agent required for reducing the NO x resulting from the exhaust gas.
  • a self-stabilized burner is known from FR-A-2456285.
  • the fuel gases are released against the pre-combustion chamber through an umbrella-like attachment after leaving a gas collecting tube.
  • the flame then leaves the burner at a free jet angle.
  • the object of the invention was therefore to provide a device which makes it possible to easily reduce the NO x generated in the combustion of exhaust gases in combustion chambers.
  • the guidance of the gas flow can be optimized by the annular extension (3).
  • This cooling device protects the device according to the invention against incident heat. It can consist of cooling coils through which liquid flows, which are preferably designed in a meandering shape.
  • a particularly preferred embodiment of the combustion chamber according to the invention consists in that one or more entry elements (5) are fitted in the gas collecting tube (1). Additional gas flows, such as air or oxygen, can be introduced here.
  • One or more fuel gas introduction elements (6) can also be attached to the gas samel tube (1) in such a way that the fuel gas can reach the outlet area (7) of the gas collection tube (1).
  • the gas supply (5) and (6) can be carried out eccentrically or in another manner which improves the mixing.
  • the device itself can be heated to 800 ° C to 1000 ° C by direct or indirect heating, e.g. electrical heating of the outer jacket of the device. This gives the possibility of pyrolyzing and thus cleaning products that bake in the device when the gas flow is switched off.
  • a preferred embodiment of the combustion chamber according to the invention thus consists in that a burner (8) for cleaning purposes is installed in the gas collecting tube (1).
  • This invention also relates to a method for reducing the pollutants resulting from the combustion of gases, aerosols and / or gas-solid mixtures in a combustion chamber according to one of claims 1 to 4, characterized in that the exit velocities of the gases, aerosols and / or Gas / solid mixtures are 18 m / s to 80 m / s, preferably 20 m / s to 40 m / s.
  • the method according to the invention it is possible, for example, to determine the conversion rate of a nitrogenous exhaust gas when it is disposed of in steam boilers or others To significantly reduce the boiler using waste heat.
  • the exhaust gas upstream of the 1st burner level is introduced into the combustion chamber of a steam boiler by the device according to the invention in such a way that optimal mixing and residence time conditions are created.
  • the device according to the invention it is also possible to optimally adjust the exhaust gas to the combustion conditions even by admixing gaseous fuel and gaseous oxygen carriers.
  • the amount of flue gas coming from the flue gas can be up to approx. 50% of the total flue gas amount if the flue gas has a corresponding calorific value.
  • the exhaust gas itself can contain up to several 10,000 ppm of nitrogen compounds, for example HCN, which are thermally split and react to a considerable extent with oxygen to form NO or NO2. In the first tests, the NO x reduction was between 61% with a share of 13% and 48% with a share of the exhaust gas of 32% of the flue gas volume flow mentioned.
  • the exhaust gas containing nitrogen compounds was introduced into the combustion chamber of a steam boiler with a cross section of 4 m ⁇ 4 m via 34 pipes of size DN 100 arranged in a central feed mushroom, about 2 m below the first burner level, consisting of 4 corner burners.
  • the pipes in the feed mushroom formed an angle of 20 ° to the axis of the combustion chamber.
  • the entry of the low calorific value exhaust gas with 0.8 MI / m3 to 1.2 MI / m3, typically up to 4% hydrocyanic acid and oxygen, 89% nitrogen and max.
  • measured by conventional mushroom-shaped distributor NOx levels was m3 at a boiler part load and about 65,000 / h flue gas 8 installed in 2 burner planes gas burner of the NO x content based and calculated according to GFAVO, with the inventive device at initiation of 10,000 m3 / h exhaust gas reduced by 61% and at 30,000 m3 / h by 48% under the same operating conditions.
  • the residual oxygen content at the end of the furnace was 1%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
  • Treating Waste Gases (AREA)
EP88114523A 1987-09-17 1988-09-06 Vorrichtung zum Eintrag von Gasen in Brennräume sowie Verfahren zur Minderung von Schadstoffen bei Verbrennungsvorgängen Expired - Lifetime EP0307764B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873731205 DE3731205A1 (de) 1987-09-17 1987-09-17 Vorrichtung zum eintrag von gasen in brennraeume sowie verfahren zur minderung von schadstoffen bei verbrennungsvorgaengen
DE3731205 1987-09-17

Publications (2)

Publication Number Publication Date
EP0307764A1 EP0307764A1 (de) 1989-03-22
EP0307764B1 true EP0307764B1 (de) 1991-08-28

Family

ID=6336202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114523A Expired - Lifetime EP0307764B1 (de) 1987-09-17 1988-09-06 Vorrichtung zum Eintrag von Gasen in Brennräume sowie Verfahren zur Minderung von Schadstoffen bei Verbrennungsvorgängen

Country Status (4)

Country Link
US (1) US4856985A (ja)
EP (1) EP0307764B1 (ja)
JP (1) JPH01208611A (ja)
DE (2) DE3731205A1 (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2292452B (en) * 1994-07-26 1998-03-25 Airoil Flaregas Ltd A flare tip structure and a method of disposal of waste gas utilising such a structure
DE19501914C1 (de) * 1995-01-23 1996-04-04 Centrotherm Elektrische Anlage Vorrichtung zur Reinigung von Abgasen
US6073445A (en) * 1999-03-30 2000-06-13 Johnson; Arthur Methods for producing hydro-electric power
US6224369B1 (en) * 1999-06-02 2001-05-01 David H. Moneyhun Device and method for burning vented fuel
US7811081B2 (en) * 2008-04-18 2010-10-12 Moneyhun Equipment Sales & Service Off-gas flare
JP5657335B2 (ja) * 2010-10-18 2015-01-21 株式会社桂精機製作所 オイルミスト除去用バーナ及びそれを用いた油煙発生源となる装置
US20150104752A1 (en) * 2013-10-15 2015-04-16 Jlcc, Inc. Smokeless flare burner
US9416966B2 (en) 2014-07-25 2016-08-16 Flame Commander Corp. Venturi nozzle for a gas combustor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3468634A (en) * 1966-03-23 1969-09-23 Air Preheater Concentric tube odor eliminator
US3501255A (en) * 1968-03-25 1970-03-17 Bobby H Greene Gas burner apparatus
GB1274637A (en) * 1969-03-27 1972-05-17 Zink Co John Process for disposal of oxides of nitrogen
US3649206A (en) * 1970-06-01 1972-03-14 Air Liquide Apparatus for cracking and burning hydrocarbons
US3994671A (en) * 1975-03-14 1976-11-30 Combustion Unlimited Incorporated Flare gas burner
US3995986A (en) * 1975-03-14 1976-12-07 Straitz John F Iii Flare gas burner
US4145979A (en) * 1978-01-23 1979-03-27 Envirotech Corporation Afterburner assembly
CA1110157A (en) * 1978-08-08 1981-10-06 David A. Chesters Flame stabiliser
FR2456285A1 (fr) * 1979-05-11 1980-12-05 Fofumi Fours Fumisterie Indle Bruleur a gaz
US4538982A (en) * 1982-04-05 1985-09-03 Mcgill Incorporated Flare gas combustion apparatus

Also Published As

Publication number Publication date
DE3864481D1 (de) 1991-10-02
US4856985A (en) 1989-08-15
JPH01208611A (ja) 1989-08-22
DE3731205A1 (de) 1989-03-30
EP0307764A1 (de) 1989-03-22

Similar Documents

Publication Publication Date Title
DE2461078C2 (de) Verfahren zur Verringerung des Gehalts an Stickstoffoxiden, Kohlenmonoxid und Kohlenstoff in einem Abgas, sowie Feuerungsanlage zur Durchführung des Verfahrens
DE102006005464B3 (de) Verfahren zur primärseitigen Stickoxidminderung in einem zweistufigen Verbrennungsprozess
DE2421452B2 (de) Vorrichtung zum Verfeuern von Kohlenstaub
DE3915992A1 (de) Verfahren zur reduktion von stickstoffoxiden
DE2615369A1 (de) Verfahren zur rauchgaskonditionierung in abfallverbrennungsanlagen mit waermeverwertung, insbesondere fuer kommunalen und industriellen muell, und vorrichtung zur ausfuehrung des verfahrens
EP0307764B1 (de) Vorrichtung zum Eintrag von Gasen in Brennräume sowie Verfahren zur Minderung von Schadstoffen bei Verbrennungsvorgängen
EP1013995A2 (de) Verfahren zur thermischen Behandlung von nicht brennbaren Flüssigkeiten
DE3040830C2 (de) Verfahren zur Verminderung der NO↓X↓ -Emission bei der Verbrennung von stickstoffhaltigen Brennstoffen
DE2352204B2 (de) Verbrennungseinrichtung zur verbrennung von stoerstoffen in abgasen
EP1319151A1 (de) Verfahren zur regenerierung von schwefelhaltigem reststoff und zur durchführung des verfahrens geeigneter zerstäubungsbrenner
EP3428534A1 (de) Hochwarmfestes, hoch erosionsbeständiges lanzensystem, reaktionsraum enthaltend das lanzensystem und verfahren zur verringerung der konzentration von schadstoffen in verbrennungsgasen
EP2691701B1 (de) Verfahren zur optimierung des ausbrands von abgasen einer verbrennungsanlage
DE3615759A1 (de) Verfahren zur verminderung des kohlenstoffgehalts von aus einer feuerung stammender flugasche
EP0132584A2 (de) Verfahren und Anlage zum Vermindern der Schadstoffemissionen in Rauchgasen von Feuerungsanlagen
EP0460160B1 (de) Verfahren zur verringerung der stickoxidemission bei der verfeuerung von festen brennstoffen
AT390208B (de) Verfahren zur entfernung von stickoxiden
EP0484777B1 (de) Verfahren zur Stabilisierung eines Verbrennungsvorganges
DE2449798C2 (de) Wirbelschichtofen für die Verbrennung von teilweise entwässertem Schlamm
DE4422535A1 (de) Verfahren zum Betrieb einer Feuerungsanlage
EP0288031B2 (de) Verfahren und Feuerungsanlage zur Reduzierung von Stickoxidwerten bei öl- oder gasbetriebenen Feuerungsanlagen
DE10339133B4 (de) Verfahren zur NOx-Minderung in Feuerräumen und Vorrichtung zur Durchführung des Verfahrens
DE3627086A1 (de) Verfahren und anordnung zum entfernen von stickstoffoxiden aus rauchgasen
DE2626203C2 (de) Vorrichtung zum Entfernen von Ammoniak aus einer Ammoniak enthaltenden Beschickung
DE3446788A1 (de) Flammenverdampfungsbrenner mit vorbrennkammer
DE19520720C2 (de) Verfahren und Anlage zur Erzeugung von Dampf

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19880906

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

17Q First examination report despatched

Effective date: 19900118

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

REF Corresponds to:

Ref document number: 3864481

Country of ref document: DE

Date of ref document: 19911002

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920817

Year of fee payment: 5

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920825

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19930906

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930906

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940601

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050906