DE4224959A1 - Method to operate combination power station - uses part flue gas flow, which is branched-off in substoichiometric combustion area, in front of secondary air supply - Google Patents

Method to operate combination power station - uses part flue gas flow, which is branched-off in substoichiometric combustion area, in front of secondary air supply

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Publication number
DE4224959A1
DE4224959A1 DE4224959A DE4224959A DE4224959A1 DE 4224959 A1 DE4224959 A1 DE 4224959A1 DE 4224959 A DE4224959 A DE 4224959A DE 4224959 A DE4224959 A DE 4224959A DE 4224959 A1 DE4224959 A1 DE 4224959A1
Authority
DE
Germany
Prior art keywords
fluidized bed
flue gas
gas
air supply
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Withdrawn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
DE4224959A
Other languages
German (de)
Inventor
Horst Dipl Phys Wetzel
Franz Dr Phil Bauer
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.)
VEAG Vereinigte Energiewerke AG
Original Assignee
VEAG Vereinigte Energiewerke 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 VEAG Vereinigte Energiewerke AG filed Critical VEAG Vereinigte Energiewerke AG
Priority to DE4224959A priority Critical patent/DE4224959A1/en
Priority to PCT/EP1993/001522 priority patent/WO1994002711A1/en
Priority to EP93914662A priority patent/EP0651854B1/en
Priority to SK85-95A priority patent/SK8595A3/en
Priority to DE59301985T priority patent/DE59301985D1/en
Priority to AU44185/93A priority patent/AU4418593A/en
Priority to AT93914662T priority patent/ATE135794T1/en
Priority to CZ95113A priority patent/CZ11395A3/en
Priority to RU95105440/06A priority patent/RU95105440A/en
Priority to DK93914662.7T priority patent/DK0651854T3/en
Priority to ZA934691A priority patent/ZA934691B/en
Publication of DE4224959A1 publication Critical patent/DE4224959A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/205—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products in a fluidised-bed combustor
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • 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 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The method is for use with a power station with circulating fluidized combustion for solid fuels, esp. lignite. Flue gas is directly afterheated together with a part flue gas flow, and supplied as hot gas to the gas turbine. The part flow is branched-off in front of the secondary air supply, in the substoichiometric area of the fluidized combustion. The combustion gas channel is connected to the substoichiometric combustion area, via ring conduit with extraction points. USE/ADVANTAGE - Combustion gas with high-calorific values is generated and used, resulting in optimum afterburning of flue gas for max. entry temperature into gas turbine.

Description

Die Erfindung betrifft ein Verfahren und eine Anordnung zum Betreiben eines Kombikraftwerkes mit einer zirkulierenden Wirbelschichtfeuerung für feste Brennstoffe, insbesondere Braunkohle.The invention relates to a method and an arrangement for Operating a combined cycle power plant with a circulating one Fluidised bed firing for solid fuels, in particular Brown coal.

Zur Erzielung hoher Eintrittstemperaturen für das der Gas­ turbine zugeführte Heißgas wird dieses mit einem aus der Wirbelschichtfeuerung abgezweigten und gereinigten Rauchgas­ teilstrom in einer Zusatzfeuerung direkt nacherhitzt (DE-OS 36 13 300).To achieve high inlet temperatures for the gas The hot gas supplied to the turbine is extracted from the Fluidized bed combustion branched and cleaned flue gas Partial flow is reheated directly in an additional furnace (DE-OS 36 13 300).

Diese Verfahrensweise hat zwar den Vorteil, daß mit nur einem Brennstoff der Betrieb der Wirbelschichtfeuerung und der Zu­ satzfeuerung gewährleistet ist.This procedure has the advantage that with only one Fuel the operation of the fluidized bed and the Zu set firing is guaranteed.

Von Nachteil ist, daß bei einer zirkulierenden Wirbelschicht­ feuerung ein hoher anlagen- und betriebsführungstechnischer Aufwand erforderlich ist, weil die Gewinnung des Brenngases für die Nacherhitzung im Brennstoff-Asche-Kanal und im Be­ reich der Brennstoffzufuhr erfolgt. Eine Steuerung der erfor­ derlichen Verbrennungsluft ist nicht ohne weiteres möglich, so daß nur eine ungenügende Ausnutzung des Brenngases aus dem Rauchgasteilstrom erreichbar ist.The disadvantage is that with a circulating fluidized bed firing a high level of plant and operational management Effort is required because the extraction of the fuel gas for reheating in the fuel-ash duct and in the loading Rich fuel supply takes place. A control of the requ combustion air is not easily possible, so that only insufficient use of the fuel gas from the Partial flue gas flow is accessible.

Darüber hinaus ist die Enthalpie des Rauchgases der Wirbel­ schichtfeuerung nur ungenügend genutzt.In addition, the enthalpy of the flue gas is the vortex stratified combustion is used insufficiently.

Der Erfindung liegt die Aufgabe zugrunde, das Brenngas mit hochkalorischen Werten zu gewinnen und zu nutzen, d. h. eine optimale Nachverbrennung des Rauchgases für eine maximale Eintrittstemperatur in die Gasturbine zu erreichen. The invention is based, with the fuel gas to gain and use high calorific values, d. H. a optimal afterburning of the flue gas for a maximum To reach the inlet temperature in the gas turbine.  

Dies wird dadurch erreicht, daß erfindungsgemäß der Rauchgas­ teilstrom im unterstöchiometrisch gefahrenen Bereich der Wir­ belschichtfeuerung vor der Sekundärluftzuführung abgezweigt wird.This is achieved in that the flue gas according to the invention Partial flow in the sub-stoichiometric area of the We Layered-bed firing branched off before the secondary air supply becomes.

Zur Realisierung ist erfindungsgemäß der Brenngaskanal in den unterstöchiometrisch gefahrenen Bereich der Wirbelschicht­ feuerung vor der Sekundärluftzuführung eingebunden.According to the invention, the fuel gas duct is implemented in FIGS sub-stoichiometrically driven area of the fluidized bed combustion integrated before the secondary air supply.

An einem Ausführungsbeispiel wird die Erfindung näher erläu­ tert. Die Zeichnung zeigt das Prinzipbild der zirkulierenden Wirbelschichtfeuerung mit Einbindung des Brenngaskanals.The invention is explained in more detail using an exemplary embodiment tert. The drawing shows the principle of the circulating Fluid bed combustion with integration of the fuel gas duct.

Die zirkulierende Wirbelschichtfeuerung 1 weist den Anström­ boden 2, die Brennstoffaufgabe 3, die Primärluftzuführung 4, die Sekundärluftzuführung 5 sowie die Tertiärluftzuführung 6 und den Rauchgaskanal 7 auf. Der Rauchgaskanal 7 ist in die Reinigungs- und Trenneinrichtung 8 eingebunden.The circulating fluidized bed combustion 1 has the inflow floor 2 , the fuel feed 3 , the primary air supply 4 , the secondary air supply 5 and the tertiary air supply 6 and the flue gas duct 7 . The flue gas duct 7 is integrated in the cleaning and separating device 8 .

Der Brennstoff-Asche-Gemischkanal 10 ist mit der Wirbel­ schichtfeuerung 1 verbunden.The fuel-ash mixture channel 10 is connected to the fluidized bed combustion 1 .

Der Tauchrohrkanal 9 der Reinigungs- und Trenneinrichtung 8 ist über die Nachverbrennungseinrichtung 11 und dem Heißgas­ kanal 24 mit dem Eintritt der mit dem Verdichter 29 gekoppelten Gasturbine 12 verbunden.The dip tube channel 9 of the cleaning and separating device 8 is connected via the afterburning device 11 and the hot gas channel 24 to the inlet of the gas turbine 12 coupled to the compressor 29 .

Die Primär-, Sekundär- und Tertiärluftzuführungen 4; 5; 6 sind mit der Verbrennungsluftleitung 13 und diese mit dem Austritt des Verdichters 29 verbunden.The primary, secondary and tertiary air inlets 4 ; 5 ; 6 are connected to the combustion air line 13 and this to the outlet of the compressor 29 .

Die Nachverbrennungseinrichtung 11 ist über den Brenngaska­ nal 14 mit der Ringleitung 15 verbunden. The afterburning device 11 is connected via the Brenngaska channel 14 to the ring line 15 .

Die Ringleitung 15 ist über die Entnahmestellen 16 in den un­ terstöchiometrisch gefahrenen Bereich 17 der Wirbelschicht­ feuerung 1 vor der Sekundärluftzuführung 5 eingebunden.The ring line 15 is connected via the tapping points 16 in the un terstoichiometrically driven area 17 of the fluidized bed firing 1 before the secondary air supply 5 .

Im Brenngaskanal 14 ist die Brenngasreinigung 26 und deren Rückführung 27 in den Brennstoff-Asche-Gemischkanal 28 einge­ bunden.In the fuel gas channel 14 , the fuel gas purification 26 and its return 27 in the fuel-ash mixture channel 28 is connected.

Die Wirkungsweise ist folgende:The mode of action is as follows:

Über die Brennstoffaufgabe 3 wird körnige Braunkohle ober­ halb des Anströmbodens 2 und über die Primärluftzuführung 4 Verbrennungsluft 19 unterhalb des Anströmbodens 2 einge­ bracht.About the fuel task 3 granular lignite above half of the inflow floor 2 and 4 via the primary air supply combustion air 19 below the inflow floor 2 is introduced.

Die Verbrennungsluft wirbelt den über den Anströmboden 2 be­ findlichen Brennstoff auf, verbrennt und/oder vergast diesen, so daß die entstehende Gasatmosphäre einen hohen CO-Gehalt aufweist.The combustion air whirls the fuel on the inflow base 2 , burns and / or gasifies it, so that the resulting gas atmosphere has a high CO content.

Über die Sekundär- und Tertiärluftzuführungen 5; 6 wird wei­ tere Verbrennungsluft 19 eingebracht, so daß der Brennstoff emissionsfrei verbrennt und als Rauchgas 20 über den Rauch­ gaskanal 7 aus der Wirbelschichtfeuerung 1 ausgetragen wird.Via the secondary and tertiary air feeds 5 ; 6 Wei tere combustion air 19 is introduced so that the fuel burns emission-free and is discharged as flue gas 20 via the smoke gas channel 7 from the fluidized bed furnace 1 .

Das Rauchgas 20 wird in die Reinigungs- und Trenneinrichtung 8 gefördert und dort die im Rauchgas 20 befindlichen Brenn­ stoff- und Ascheteilchen abgetrennt.The flue gas 20 is conveyed into the cleaning and separating device 8 and there the fuel and ash particles located in the flue gas 20 are separated.

Das Brennstoff-Asche-Gemisch 21 wird in die Wirbelschicht­ feuerung 1 zurückgeführt.The fuel-ash mixture 21 is fed back into the fluidized bed combustion 1 .

Das gereinigte Rauchgas 22 gelangt in die Nachverbrennungs­ einrichtung 11, wird dort mit dem Brenngas 23 nachverbrannt dem Eintritt der Gasturbine 12 zugeführt. The cleaned flue gas 22 passes into the afterburning device 11 , where it is afterburned with the fuel gas 23 and fed to the inlet of the gas turbine 12 .

Das Brenngas 23 wird aus dem unterstöchiometrisch gefahrenen Bereich 17 der Wirbelschichtfeuerung 1 vor der Sekundärluft­ zuführung 5 über die Entnahmestellen 16 abgezogen, über die Ringleitung 15 in den Brenngaskanal 14 gefördert und in der Brenngasreinigung 26 gereinigt. Das abgetrennte Brennstoff- Asche-Gemisch 28 wird über die Rückführung 27 in die Wirbel­ schichtfeuerung 1 zurückgeführt. Dadurch wird das Brenngas 23 staubarm der Nachverbrennungseinrichtung 11 zugeführt.The fuel gas 23 is withdrawn from the sub-stoichiometrically driven area 17 of the fluidized bed furnace 1 in front of the secondary air supply 5 via the tapping points 16 , conveyed via the ring line 15 into the fuel gas duct 14 and cleaned in the fuel gas cleaning device 26 . The separated fuel-ash mixture 28 is fed back via the recirculation 27 into the fluidized bed combustion 1 . As a result, the fuel gas 23 is fed to the afterburning device 11 with low dust.

Das so gewonnene und bereitgestellte Brenngas 23 ist derart hochkalorisch, daß durch die Nachverbrennungseinrichtung 11 das hohe Temperaturen aufweisende Heißgas 25 erzeugt wird.The fuel gas 23 thus obtained and provided is so highly caloric that the hot gas 25 having high temperatures is generated by the afterburning device 11 .

Damit ist die durch die Heißgasreinigung festliegende Rauch­ gastemperaturgrenze von 900°C bis 1000°C erheblich über­ schreitbar, so daß das Heißgas 25 mit Temperaturen über 1100°C erzeugbar ist.Thus, the fixed by the hot gas cleaning smoke gas temperature limit of 900 ° C to 1000 ° C significantly above, so that the hot gas 25 can be generated at temperatures above 1100 ° C.

Durch die Erfindung werden folgende Vorteile erreicht:The following advantages are achieved by the invention:

  • 1. Erhöhung des Wirkungsgrades durch die erreichbaren Ein­ trittstemperaturen für die Gasturbine und Minderung der CO-Belastung.1. Increase the efficiency through the achievable on entering temperatures for the gas turbine and reducing the CO pollution.
  • 2. Verringerung der CO2-Emission.2. Reduction of CO 2 emissions.
  • 3. Intensive Nutzung der Rauchgas-Enthalpie in der Gasturbi­ ne.3. Intensive use of the flue gas enthalpy in the gas turbine no
  • 4. Es wird nur ein Brennstoff für die Wirbelschichtfeuerung und für die Nachverbrennungseinrichtung durch Nutzung der CO-haltigen Gasatmosphäre von Sekundärluftzuführung benö­ tigt. 4. It only becomes a fuel for fluidized bed combustion and for the afterburning facility by using the Use a CO-containing gas atmosphere from the secondary air supply does.  
  • 5. Schutz der Gasturbine vor Verschmutzungen durch Brenn­ stoff- und Ascheteilchen.5. Protection of the gas turbine against contamination by burning fabric and ash particles.
  • 6. Die Aufteilung der Rauchgasströme läßt kleinere Anlagen­ komponenten zu.6. The division of the flue gas streams leaves smaller plants components too.
  • 7. Sehr gute verbrennungs- und regelungstechnische Beherr­ schung des Gesamtprozesses.7. Very good combustion and control engineering master creation of the overall process.

Aufstellung der verwendeten BezugszeichenList of the reference symbols used

 1 Wirbelschichtfeuerung
 2 Anströmboden
 3 Brennstoffaufgabe
 4 Primärluftzuführung
 5 Sekundärluftzuführung
 6 Tertiärluftzuführung
 7 Rauchgaskanal
 8 Reinigungs- und Trenneinrichtung
 9 Tauschrohrkanal
10 Brennstoff-Asche-Gemischkanal
11 Nachverbrennungseinrichtung
12 Gasturbine
13 Verbrennungsluftleitung
14 Brenngaskanal
15 Ringleitung
16 Entnahmestelle
17 unterstöchiometrischer Bereiche
18 Braunkohle
19 Verbrennungsluft
20 Rauchgas
21 Brennstoff-Asche-Gemisch
22 Rauchgas
23 Brenngas
24 Heißgaskanal
25 Heißgas
26 Brenngasreinigung
27 Rückführung
28 Brennstoff-Asche-Gemisch
29 Verdichter 1 fluidized bed firing
2 inflow floor
3 fuel feed
4 primary air supply
5 secondary air supply
6 tertiary air supply
7 flue gas duct
8 cleaning and separating device
9 exchange tube channel
10 fuel-ash mixture channel
11 afterburning device
12 gas turbine
13 Combustion air line
14 fuel gas duct
15 ring line
16 tapping point
17 substoichiometric areas
18 lignite
19 Combustion air
20 flue gas
21 Fuel-ash mixture
22 flue gas
23 fuel gas
24 hot gas duct
25 hot gas
26 Fuel gas cleaning
27 repatriation
28 Fuel-ash mixture
29 compressors

Claims (4)

1. Verfahren zum Betreiben eines Kombikraftwerkes mit einer zirkulierenden Wirbelschichtfeuerung für feste Brennstoffe, insbesondere Braunkohle, wobei Rauchgas mit einem aus der mit Primär-, Sekundär- und Tertiärluftzuführungen versehenen zir­ kulierenden Wirbelschichtfeuerung abgezweigten und gereinig­ ten Rauchgasteilstrom direkt nacherhitzt und als Heißgas der Gasturbine zugeführt wird, gekennzeichnet dadurch, daß der Rauchgasteilstrom im unterstöchio­ metrisch gefahrenen Bereich der Wirbelschichtfeuerung vor der Sekundärluftzuführung abgezweigt wird.1. A method for operating a combined cycle power plant with a circulating fluidized bed combustion for solid fuels, in particular lignite, flue gas being directly reheated and cleaned as a hot gas from the gas turbine using a circulating fluidized bed combustion which is branched off from the circulating fluidized bed combustion system and provided with primary, secondary and tertiary air supplies , characterized in that the flue gas partial flow is branched off in the substoichio metrically driven area of the fluidized bed combustion before the secondary air supply. 2. Verfahren nach Anspruch 1, gekennzeichnet dadurch, daß der Rauchgasteilstrom über Entnahmestellen aus dem Bereich abgezweigt wird.2. The method according to claim 1, characterized in that the partial flue gas flow via tapping points from the area is branched off. 3. Anordnung zum Betreiben, eines Kombikraftwerkes mit ei­ ner zirkulierenden Wirbelschichtfeuerung für feste Brennstof­ fe, insbesondere Braunkohle, wobei eine Rauchgaskanal der mit Primär-, Sekundär- und Tertiärluftzuführungen versehene Wirbelschichtfeuerung über eine Reinigungseinrichtung und ei­ ner Nachverbrennungseinrichtung mit dem Eintritt einer Gas­ turbine, die Reinigungseinrichtung über einen Brennstoff- Asche-Gemischkanal und die Nachverbrennungseinrichtung über einen Brenngaskanal mit der Wirbelschichtfeuerung verbunden sind, gekennzeichnet dadurch, daß der Brenngaskanal in den unterstöchiometrisch gefahrenen Bereich der Wirbelschicht­ feuerung vor der Sekundärluftzuführung eingebunden ist.3. Arrangement for operating a combined cycle power plant with an egg circulating fluidized bed firing for solid fuel fe, especially lignite, with a flue gas duct the with primary, secondary and tertiary air supply Fluidized bed firing via a cleaning device and egg ner afterburner with the entry of a gas turbine, the cleaning device over a fuel Ash mixture channel and the afterburner a fuel gas duct connected to the fluidized bed furnace are characterized in that the fuel gas channel in the sub-stoichiometrically driven area of the fluidized bed combustion is integrated before the secondary air supply. 4. Anordnung nach Anspruch 3, gekennzeichnet dadurch, daß der Brenngaskanal über mit einer Ringleitung verbundenen Ent­ nahmestellen eingebunden ist.4. Arrangement according to claim 3, characterized in that the fuel gas duct via Ent connected with a ring line is involved.
DE4224959A 1992-07-24 1992-07-24 Method to operate combination power station - uses part flue gas flow, which is branched-off in substoichiometric combustion area, in front of secondary air supply Withdrawn DE4224959A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE4224959A DE4224959A1 (en) 1992-07-24 1992-07-24 Method to operate combination power station - uses part flue gas flow, which is branched-off in substoichiometric combustion area, in front of secondary air supply
PCT/EP1993/001522 WO1994002711A1 (en) 1992-07-24 1993-06-16 Process and arrangement for operating a combined power station
EP93914662A EP0651854B1 (en) 1992-07-24 1993-06-16 Process for operating a combined power station
SK85-95A SK8595A3 (en) 1992-07-24 1993-06-16 Process and arrangment for operating a combined power station
DE59301985T DE59301985D1 (en) 1992-07-24 1993-06-16 METHOD FOR OPERATING A COMBINED POWER PLANT
AU44185/93A AU4418593A (en) 1992-07-24 1993-06-16 Process and arrangement for operating a combined power station
AT93914662T ATE135794T1 (en) 1992-07-24 1993-06-16 METHOD FOR OPERATING A COMBINED POWER PLANT
CZ95113A CZ11395A3 (en) 1992-07-24 1993-06-16 Operation of combined power station
RU95105440/06A RU95105440A (en) 1992-07-24 1993-06-16 Combined-cycle plant operating process and device
DK93914662.7T DK0651854T3 (en) 1992-07-24 1993-06-16 Method of operation of a cogeneration plant
ZA934691A ZA934691B (en) 1992-07-24 1993-06-30 Operation of power station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4224959A DE4224959A1 (en) 1992-07-24 1992-07-24 Method to operate combination power station - uses part flue gas flow, which is branched-off in substoichiometric combustion area, in front of secondary air supply

Publications (1)

Publication Number Publication Date
DE4224959A1 true DE4224959A1 (en) 1994-01-27

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DE4224959A Withdrawn DE4224959A1 (en) 1992-07-24 1992-07-24 Method to operate combination power station - uses part flue gas flow, which is branched-off in substoichiometric combustion area, in front of secondary air supply

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ZA (1) ZA934691B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19622299C2 (en) * 1996-05-21 2000-10-12 Ver Energiewerke Ag Method for operating a pressure-charged circulating fluidized bed furnace for generating a workable gas for the gas turbine of a combined cycle power plant
DE4236512C2 (en) * 1992-10-26 2001-05-10 Ver Energiewerke Ag Method for operating a combined cycle power plant, wherein flue gas from a boiler is cleaned with a fluidized bed combustion operated stoichiometrically in gasifier-like operation, afterburned with the supply of clean air and fed to a gas turbine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3204672A1 (en) * 1982-02-11 1983-08-18 Deutsche Babcock Anlagen Ag, 4200 Oberhausen COMBINED GAS / STEAM TURBINE PROCESS
DE2927240C2 (en) * 1979-07-05 1985-10-31 Kiener-Pyrolyse Gesellschaft für thermische Abfallverwertung mbH, 7000 Stuttgart Method and device for gasifying lumpy fuels with pre-carbonization and cracking of the carbonization gases in the gas generator
DE3642396A1 (en) * 1986-12-11 1988-06-16 Siemens Ag STEAM GENERATOR SYSTEM WITH A CIRCULATING FLUID BED
EP0363812A2 (en) * 1988-10-10 1990-04-18 Hannover-Braunschweigische Strom-Versorgungs-Aktiengesellschaft Method and installation for generating steam, especially in heat power plants
US4955190A (en) * 1988-03-10 1990-09-11 Foster Wheeler Development Corporation Method for driving a gas turbine utilizing a hexagonal pressurized fluidized bed reactor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2927240C2 (en) * 1979-07-05 1985-10-31 Kiener-Pyrolyse Gesellschaft für thermische Abfallverwertung mbH, 7000 Stuttgart Method and device for gasifying lumpy fuels with pre-carbonization and cracking of the carbonization gases in the gas generator
DE3204672A1 (en) * 1982-02-11 1983-08-18 Deutsche Babcock Anlagen Ag, 4200 Oberhausen COMBINED GAS / STEAM TURBINE PROCESS
DE3642396A1 (en) * 1986-12-11 1988-06-16 Siemens Ag STEAM GENERATOR SYSTEM WITH A CIRCULATING FLUID BED
US4955190A (en) * 1988-03-10 1990-09-11 Foster Wheeler Development Corporation Method for driving a gas turbine utilizing a hexagonal pressurized fluidized bed reactor
EP0363812A2 (en) * 1988-10-10 1990-04-18 Hannover-Braunschweigische Strom-Versorgungs-Aktiengesellschaft Method and installation for generating steam, especially in heat power plants

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4236512C2 (en) * 1992-10-26 2001-05-10 Ver Energiewerke Ag Method for operating a combined cycle power plant, wherein flue gas from a boiler is cleaned with a fluidized bed combustion operated stoichiometrically in gasifier-like operation, afterburned with the supply of clean air and fed to a gas turbine
DE19622299C2 (en) * 1996-05-21 2000-10-12 Ver Energiewerke Ag Method for operating a pressure-charged circulating fluidized bed furnace for generating a workable gas for the gas turbine of a combined cycle power plant

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