DE4202018C1 - Combustion chamber for gas turbine plant - has two catalyst holders consisting of honeycomb segments with flame holder downstream of them. - Google Patents

Combustion chamber for gas turbine plant - has two catalyst holders consisting of honeycomb segments with flame holder downstream of them.

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Publication number
DE4202018C1
DE4202018C1 DE19924202018 DE4202018A DE4202018C1 DE 4202018 C1 DE4202018 C1 DE 4202018C1 DE 19924202018 DE19924202018 DE 19924202018 DE 4202018 A DE4202018 A DE 4202018A DE 4202018 C1 DE4202018 C1 DE 4202018C1
Authority
DE
Germany
Prior art keywords
flame holder
catalyst
downstream
segments
turbine plant
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 - Fee Related
Application number
DE19924202018
Other languages
German (de)
Inventor
Viktor Dr.-Ing. 7500 Karlsruhe De Scherer
Timothy Dr. 6902 Sandhausen De Griffin
Wolfgang Dipl.-Ing. 6908 Wiesloch De Weisenstein
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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.)
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Publication date
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Priority to DE19924202018 priority Critical patent/DE4202018C1/en
Application granted granted Critical
Publication of DE4202018C1 publication Critical patent/DE4202018C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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 
    • F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
    • F23R3/18—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/40—Continuous combustion chambers using liquid or gaseous fuel characterised by the use of catalytic means
    • 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 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/13002—Catalytic combustion followed by a homogeneous combustion phase or stabilizing a homogeneous combustion phase

Abstract

To expand the stability area of a catalytically supported combustion system, a flame holder (3) designed as a twisted or truncated element is arranged directly downstream of a catalyst (2). It induces a recirculation zone (5) in the gas flow and sets up homogeneous combustion further downstream. Pref. the catalyst comprises a sequence of honeycombed segments (6) differing in cell density so that fuel (B) can be imparted to the gap between the segments. The flame holder is pref. coated with catalytically active material. USE/ADVANTAGE - Turbine plant. Downstream flame holder enlarges stability range and reduces CO and unburnt hydrocarbon emissions.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Erweite­ rung des Stabilitätsbereiches einer katalytisch unterstütz­ ten Verbrennung. Das Verfahren ist beispielsweise geeignet zur Erhöhung des Stabilitätsbereiches einer Verbrennung im Gasgenerator eines Gasturbinensystems.The invention relates to a method for expansion the stability range of a catalytic support combustion. The method is suitable, for example to increase the stability range of a combustion in Gas generator of a gas turbine system.

Aus der Veröffentlichung Lavid, M., Cerkanowicz, A.E., "Catalytic Flame Stabilizaton", 4th Workshop on Catalytic Combustion, Cincinnati, Ohio, 1980, Seite 43 bis 61, ist es bekannt, eine Gasphasenreaktion, also eine Flamme, durch Anordnung eines Katalysators zu stabilisieren. In einer solchen Anordnung wird ein Teil des Brennstoffs im z. B. wa­ benförmigen Katalysator umgesetzt, der Rest stromab des Ka­ talysators. Die Verwendung eines Katalysators erlaubt es, sehr magere Gemische ohne Stabilitätsprobleme zu verbren­ nen, was mit einer normalen Flamme ohne Katalysatoreinsatz nicht möglich wäre. From the publication Lavid, M., Cerkanowicz, A.E., "Catalytic Flame Stabilizaton", 4th Workshop on Catalytic Combustion, Cincinnati, Ohio, 1980, pages 43-61, it is known a gas phase reaction, i.e. a flame Stabilize arrangement of a catalyst. In a such an arrangement is a part of the fuel in z. B. wa ben-shaped catalyst implemented, the rest downstream of the Ka talysators. The use of a catalyst allows very lean mixtures without burning stability problems what with a normal flame without catalyst would not be possible.  

Allerdings ist die Gasphasenreaktion stromab des Katalysa­ tors sehr turbulenzarm. Der Regelbereich der Luftzahl, also des Brennstoff-Luftverhältnisses, und der Katalysatorein­ trittstemperatur ist somit für eine stabile Reaktion eng begrenzt.However, the gas phase reaction is downstream of the catalytic converter tors very low turbulence. The control range of the air ratio, so the air-fuel ratio, and the catalyst temperature is narrow for a stable reaction limited.

Bei einer aus Patent Abstract JP-OS 59-56 019 bekannten Anordnung ist stromab des Katalysators eine mit Löchern versehene Schirmplatte angeordnet. Es wird ein Aufheizen dieser Lochplatte und auch der Reaktorwände stromauf der Lochplatte angestrebt. Die aus dem Katalysator austretenden Gase werden durch die von den Wänden und der Platte aus­ gehenden Strahlungsheizung erhitzt und sollen dadurch oxi­ diert werden.In a known from Patent Abstract JP-OS 59-56 019 The arrangement is one with holes downstream of the catalyst provided shield plate arranged. It will heat up this perforated plate and also the reactor walls upstream of the Perforated plate aimed. The exiting from the catalyst Gases are released from the walls and the plate outgoing radiant heating is heated and should thereby oxi be dated.

Aus dem Patent Abstract JP-OS 57-1 15 609 ist eine Katalysa­ toranordnung mit mehreren Katalysatorschichten unterschied­ licher Zelldichte bekannt. Damit wird eine vergrößerte Oberfläche für den Gaskontakt geschaffen.From the patent abstract JP-OS 57-1 15 609 is a catalytic converter Difference in gate arrangement with several catalyst layers Licher cell density known. This will be an enlarged one Surface created for gas contact.

Ein Brennwertgerät für Kohlenwasserstoffe mit zweistufiger Ausbildung der Verbrennungsvorrichtung ist aus der DE-PS 33 32 572 bekannt. Zwischen einem ausgangsseitig der ersten Stufe angeordneten Wärmetauscher und der zweiten Stufe wird Sekundärluft zugeführt. Damit soll eine praktisch vollstän­ dige Verbrennung bei relativ niedriger Temperatur erzielt werden.A condensing boiler for hydrocarbons with two stages Training of the combustion device is from DE-PS 33 32 572 known. Between the output side of the first Stage arranged heat exchanger and the second stage Secondary air supplied. This is supposed to be practically complete combustion achieved at a relatively low temperature will.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Erweiterung des Stabilitätsbereiches einer katalytisch unterstützten Verbrennung anzugeben.The invention has for its object a method for Extension of the stability range of a catalytic to indicate supported combustion.

Diese Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren zur Erweite­ rung des Stabilitätsbereiches einer katalytisch unterstütz­ ten Verbrennung, wobei unmittelbar stromab eines Katalysa­ tors ein Flammhalter in Form eines Drallkörpers oder Stumpfkörpers angeordnet wird, der eine Rezirkulationszone im Gasstrom induziert und weiter stromab eine homogene Verbrennung bewirkt.According to the invention, this object is achieved by a method for expanding the stability range of a catalytic support combustion, immediately downstream of a catalytic converter tors a flame holder in the form of a swirl body or  Stump body is arranged, which is a recirculation zone induced in the gas flow and further downstream a homogeneous Combustion causes.

Vorteilhafte Ausgestaltungen sind in Unteransprüchen ange­ geben.Advantageous embodiments are set out in the subclaims give.

Mit der Erfindung wird außer einer Erweiterung des stabilen Regelbereiches für die Verbrennung auch eine vorteilhafte Verringerung der Emission von Kohlenmonoxid und von unver­ brannten Kohlenwasserstoffen erzielt.In addition to an expansion of the stable Control range for combustion also an advantageous one Reduction of carbon monoxide and non-carbon emissions burned hydrocarbons.

Die Wirkungsweise der mit der Erfindung vorgeschlagenen An­ ordnung eines Flammhalters in Form eines Drallkörpers oder Stumpfkörpers stromab eines Katalysators wird nachstehend anhand der Zeichnung erläutert. Flammhalter sind an sich von konventionellen Brennern her bekannt, also von Brennern ohne Katalysator.The operation of the proposed with the invention arrangement of a flame holder in the form of a swirl or The stump body downstream of a catalyst is shown below explained using the drawing. Flame holders are in themselves known from conventional burners, i.e. from burners without catalyst.

In der Zeichnung ist schematisch ein Gasgenerator 1 zur Er­ zeugung von Heißgas dargestellt, dem verdichtete Luft L und Brennstoff B, z. B. Gas oder Öl, zugeführt ist und der einen Katalysator 2 enthält. Unmittelbar stromab des Katalysators 2 ist ein Flammhalter 3 in Form eines Drallkörpers oder ei­ nes Stumpfkörpers angeordnet.In the drawing, a gas generator 1 for generating hot gas, the compressed air L and fuel B, z. B. gas or oil, and which contains a catalyst 2 . Immediately downstream of the catalyst 2 is a flame holder 3 in the form of a swirl body or egg nes stump body.

Das am Eingang des Katalysators 2 befindliche Brenn­ stoff-Luftgemisch wird entzündet und verbrennt teilweise im Katalysator 2, ein anderer Teil in einer homogenen Verbren­ nungszone 4 stromab. Der Flammhalter 3 induziert eine Re­ zirkulatioszone 5, in der die Flammgeschwindigkeit und die Gaströmungsgeschwindigkeit von gleicher Größenordnung sind. Es wird dadurch eine Erhöhung der mittleren Verweilzeit der Gase in der heißen Verbrennungszone und eine intensive, turbulente Quervermischung der Gase erreicht.The fuel-air mixture located at the entrance to the catalyst 2 is ignited and partially burns in the catalyst 2 , another part in a homogeneous combustion zone 4 downstream. The flame holder 3 induces a recirculation zone 5 in which the flame speed and the gas flow speed are of the same order of magnitude. This results in an increase in the mean residence time of the gases in the hot combustion zone and an intensive, turbulent cross-mixing of the gases.

Der Katalysator 2 kann aus mehreren in Strömungsrichtung hintereinander angeordneten Segmenten 6 aufgebaut sein, die unterschiedliche Zelldichten aufweisen können. Die Segmente 6 können voneinander beabstandet sein und es kann Brenn­ stoff B zwischen den Segmenten 6 zugeführt werden.The catalytic converter 2 can be constructed from a plurality of segments 6 arranged one behind the other in the flow direction, which can have different cell densities. The segments 6 can be spaced apart and fuel B can be supplied between the segments 6 .

Gemäß einer weiteren Ausgestaltung kann der Flammhalter 3 mit einer Beschichtung aus katalytisch aktivem Material versehen werden, um ein Quenchen der Reaktionen an kalten Materialwänden zu vermeiden.According to a further embodiment, the flame holder 3 can be provided with a coating of catalytically active material in order to avoid quenching of the reactions on cold material walls.

Claims (4)

1. Verfahren zur Erweiterung des Stabilitätsbereichs einer katalytisch unterstützten Verbrennung, dadurch ge­ kennzeichnet, daß unmittelbar stromab eines Katalysators (2) ein Flammhalter (3) in Form eines Drallkörpers oder Stumpfkörpers angeordnet wird, der eine Rezirkulationszone (5) im Gasstrom induziert und weiter stromab eine homogene Verbrennung bewirkt.1. A method for expanding the stability range of a catalytically assisted combustion, characterized in that a flame holder ( 3 ) in the form of a swirl body or stump body is arranged immediately downstream of a catalyst ( 2 ), which induces a recirculation zone ( 5 ) in the gas stream and further downstream homogeneous combustion. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Katalysator (2) eine Anordnung mit mehreren hinter­ einander angeordneten, vorzugsweise wabenförmigen Segmenten (6) mit unterschiedlichen Zelldichten eingesetzt wird.2. The method according to claim 1, characterized in that an arrangement with a plurality of successively arranged, preferably honeycomb-shaped segments ( 6 ) with different cell densities is used as the catalyst ( 2 ). 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß zwischen den Segmenten (6) des Katalysators (2) dem Gasstrom Brennstoff (B) zugegeben wird.3. The method according to claim 2, characterized in that between the segments ( 6 ) of the catalyst ( 2 ) the gas stream fuel (B) is added. 4. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein Flammhalter (3) verwendet wird, der mit katalytisch aktivem Material beschichtet ist.4. The method according to any one of the preceding claims, characterized in that a flame holder ( 3 ) is used, which is coated with catalytically active material.
DE19924202018 1992-01-25 1992-01-25 Combustion chamber for gas turbine plant - has two catalyst holders consisting of honeycomb segments with flame holder downstream of them. Expired - Fee Related DE4202018C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924202018 DE4202018C1 (en) 1992-01-25 1992-01-25 Combustion chamber for gas turbine plant - has two catalyst holders consisting of honeycomb segments with flame holder downstream of them.

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DE19924202018 DE4202018C1 (en) 1992-01-25 1992-01-25 Combustion chamber for gas turbine plant - has two catalyst holders consisting of honeycomb segments with flame holder downstream of them.

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DE4202018C1 true DE4202018C1 (en) 1993-04-29

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4426351A1 (en) * 1994-07-25 1996-02-01 Abb Research Ltd Combustion chamber
EP0745180A1 (en) * 1994-03-02 1996-12-04 Catalytica, Inc. Improved process and catalyst structure employing integral heat exchange with optional downstream flameholder
NL1004051C2 (en) * 1996-09-17 1998-03-18 Gastec Nv Catalytic radiation burner.
WO2000073701A1 (en) * 1999-05-28 2000-12-07 Precision Combustion, Inc. A swirling flashback arrestor
EP1334307A2 (en) * 2000-10-27 2003-08-13 Catalytica Energy Systems, Inc. Method of thermal nox reduction in catalytic combustion systems
EP1255077A3 (en) * 2001-04-30 2004-01-07 ALSTOM (Switzerland) Ltd Device for the combustion of a gaseous mixture of fuel and oxidant
EP1439349A1 (en) * 2003-01-14 2004-07-21 Alstom Technology Ltd Combustion method and burner for carrying out the method
CH695793A5 (en) * 2001-10-01 2006-08-31 Alstom Technology Ltd Combustion method, in particular for methods of generation of electric power and / or heat.
RU2716992C2 (en) * 2018-08-27 2020-03-17 Федеральное государственное бюджетное образовательное учреждение высшего образования Иркутский государственный университет путей сообщения (ФГБОУ ВО ИрГУПС) Annular combustion chamber of gas turbine engine and method of arrangement of working process therein

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332572C2 (en) * 1983-09-09 1986-10-30 Insumma Projektgesellschaft mbH, 8500 Nürnberg Condensing boiler for hydrocarbons

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3332572C2 (en) * 1983-09-09 1986-10-30 Insumma Projektgesellschaft mbH, 8500 Nürnberg Condensing boiler for hydrocarbons

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Patents Abstracts of Japan, M-312, 25.7.1984, Vol.8,Nr.160, 59-56019 (A) *
Patents Abtracts of Japan, M-166, 22.10.1982, Vol.6,Nr.210, 57-115609(A) *
US-Buch "Catalytic Flame Stabilization, 4th Workshop on Catalytic Combustion", Cincinnati, Ohio, 1980, S. 43-61 *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0745180A1 (en) * 1994-03-02 1996-12-04 Catalytica, Inc. Improved process and catalyst structure employing integral heat exchange with optional downstream flameholder
EP0745180A4 (en) * 1994-03-02 1998-02-18 Catalytica Inc Improved process and catalyst structure employing integral heat exchange with optional downstream flameholder
DE4426351B4 (en) * 1994-07-25 2006-04-06 Alstom Combustion chamber for a gas turbine
US5626017A (en) * 1994-07-25 1997-05-06 Abb Research Ltd. Combustion chamber for gas turbine engine
DE4426351A1 (en) * 1994-07-25 1996-02-01 Abb Research Ltd Combustion chamber
NL1004051C2 (en) * 1996-09-17 1998-03-18 Gastec Nv Catalytic radiation burner.
WO1998012476A1 (en) * 1996-09-17 1998-03-26 Gastec N.V. Catalytic radiant heater
WO2000073701A1 (en) * 1999-05-28 2000-12-07 Precision Combustion, Inc. A swirling flashback arrestor
EP1334307A2 (en) * 2000-10-27 2003-08-13 Catalytica Energy Systems, Inc. Method of thermal nox reduction in catalytic combustion systems
EP1334307A4 (en) * 2000-10-27 2007-07-04 Kawasaki Heavy Ind Ltd Method of thermal nox reduction in catalytic combustion systems
EP1255077A3 (en) * 2001-04-30 2004-01-07 ALSTOM (Switzerland) Ltd Device for the combustion of a gaseous mixture of fuel and oxidant
CH695793A5 (en) * 2001-10-01 2006-08-31 Alstom Technology Ltd Combustion method, in particular for methods of generation of electric power and / or heat.
EP1439349A1 (en) * 2003-01-14 2004-07-21 Alstom Technology Ltd Combustion method and burner for carrying out the method
US6896509B2 (en) 2003-01-14 2005-05-24 Alstom Technology Ltd Combustion method and burner for carrying out the method
RU2716992C2 (en) * 2018-08-27 2020-03-17 Федеральное государственное бюджетное образовательное учреждение высшего образования Иркутский государственный университет путей сообщения (ФГБОУ ВО ИрГУПС) Annular combustion chamber of gas turbine engine and method of arrangement of working process therein

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