EP0363812A3 - Verfahren und Anlage zur Dampferzeugung, insbesondere in Heizkraftwerken - Google Patents

Verfahren und Anlage zur Dampferzeugung, insbesondere in Heizkraftwerken Download PDF

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Publication number
EP0363812A3
EP0363812A3 EP19890118445 EP89118445A EP0363812A3 EP 0363812 A3 EP0363812 A3 EP 0363812A3 EP 19890118445 EP19890118445 EP 19890118445 EP 89118445 A EP89118445 A EP 89118445A EP 0363812 A3 EP0363812 A3 EP 0363812A3
Authority
EP
European Patent Office
Prior art keywords
fluidized bed
free space
generating steam
low temperatures
installation
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Withdrawn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
EP19890118445
Other languages
English (en)
French (fr)
Other versions
EP0363812A2 (de
Inventor
Fritz Dipl.-Ing. Schinkel
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.)
HANNOVER-BRAUNSCHWEIGISCHE STROM-VERSORGUNGS-AKTIENGESELLSCHAFT
Original Assignee
HANNOVER-BRAUNSCHWEIGISCHE STROM-VERSORGUNGS-AKTIENGESELLSCHAFT
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 HANNOVER-BRAUNSCHWEIGISCHE STROM-VERSORGUNGS-AKTIENGESELLSCHAFT filed Critical HANNOVER-BRAUNSCHWEIGISCHE STROM-VERSORGUNGS-AKTIENGESELLSCHAFT
Publication of EP0363812A2 publication Critical patent/EP0363812A2/de
Publication of EP0363812A3 publication Critical patent/EP0363812A3/de
Withdrawn legal-status Critical Current

Links

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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/002—Fluidised bed combustion apparatus for pulverulent solid fuel

Abstract

Bei der Dampferzeugung in Heizkraftwerken wird, um die Nachbehandlung von Rauchgasen zur Schadstoffreduktion zu vermeiden, die Wirbelschichttechnik eingesetzt. Dabei er­ folgt die Kohleverbrennung bei relativ niedrigen Tempera­ turen um 850° C, wobei in der Wirbelschicht (1) aus Kohle und Kalk kein bzw. kaum thermisches Stickoxid gebildet wird und sich bildendes SO₂ zu Kalziumsulfat umgesetzt wird. Durch die niedrigen Temperaturen ergibt sich jedoch ein höherer Ausstoß an CO, besonders im Teillastbetrieb. Um diesen zu reduzieren, wird dem Frei­ raum (3) über dem Wirbelbett (2) zusätzlich Wärme (4) zugeführt, wo­ durch eine gezielte Beeinflussung der Freiraumtemperatur unabhängig von der der Wirbelschicht erzielt und die Um­ setzung von CO zu CO₂ erheblich gesteigert werden kann. Durch Drosselung (6) der dem Wirbelbett zuzuführenden Luft­ menge unter die stöchiometrisch erforderliche zusätzli­ che Luftzufuhr zum Freiraum unter gleichzeitiger Wärmezu­ fuhr kann weiterhin eine Reduzierung der NOx-Werte er­ reicht werden.
EP19890118445 1988-10-10 1989-10-04 Verfahren und Anlage zur Dampferzeugung, insbesondere in Heizkraftwerken Withdrawn EP0363812A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834801 1988-10-10
DE3834801 1988-10-10

Publications (2)

Publication Number Publication Date
EP0363812A2 EP0363812A2 (de) 1990-04-18
EP0363812A3 true EP0363812A3 (de) 1991-02-27

Family

ID=6364978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890118445 Withdrawn EP0363812A3 (de) 1988-10-10 1989-10-04 Verfahren und Anlage zur Dampferzeugung, insbesondere in Heizkraftwerken

Country Status (1)

Country Link
EP (1) EP0363812A3 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3933286A1 (de) * 1989-10-05 1991-04-18 Steinmueller Gmbh L & C Verfahren zur minderung des gehaltes an stickoxiden in den rauchgasen einer feuerung
US5043150A (en) * 1990-04-17 1991-08-27 A. Ahlstrom Corporation Reducing emissions of N2 O when burning nitrogen containing fuels in fluidized bed reactors
US5634329A (en) * 1992-04-30 1997-06-03 Abb Carbon Ab Method of maintaining a nominal working temperature of flue gases in a PFBC power plant
SE470222B (sv) * 1992-05-05 1993-12-06 Abb Carbon Ab Förfarande för upprätthållande av nominell arbetstemperatur på rökgaserna i en PFBC-kraftanläggning
DE4224959A1 (de) * 1992-07-24 1994-01-27 Ver Energiewerke Ag Verfahren und Anordnung zum Betreiben eines Kombikraftwerkes
SE9601392L (sv) 1996-04-12 1997-10-13 Abb Carbon Ab Förfarande för förbränning och förbränningsanläggning

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023268A (en) * 1978-04-08 1979-12-28 Worsley & Co Ltd G P Fluidized bed furnaces
US4308810A (en) * 1980-04-09 1982-01-05 Foster Wheeler Energy Corporation Apparatus and method for reduction of NOx emissions from a fluid bed combustion system through staged combustion
US4543894A (en) * 1983-05-17 1985-10-01 Union Oil Company Of California Process for staged combustion of retorted oil shale
GB2192141A (en) * 1986-07-04 1988-01-06 Politechnika Slaska Im Wincent Combustion of solid fuels

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232526B2 (ja) * 1982-11-02 1990-07-20 Babcock Hitachi Kk Ryudosoboira
JPS59167608A (ja) * 1983-03-15 1984-09-21 Babcock Hitachi Kk 流動層燃焼装置
JPS61173012A (ja) * 1985-01-24 1986-08-04 Hitachi Zosen Corp 流動床ボイラ

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023268A (en) * 1978-04-08 1979-12-28 Worsley & Co Ltd G P Fluidized bed furnaces
US4308810A (en) * 1980-04-09 1982-01-05 Foster Wheeler Energy Corporation Apparatus and method for reduction of NOx emissions from a fluid bed combustion system through staged combustion
US4308810B1 (de) * 1980-04-09 1993-08-03 Foster Wheeler Energy Corp
US4543894A (en) * 1983-05-17 1985-10-01 Union Oil Company Of California Process for staged combustion of retorted oil shale
GB2192141A (en) * 1986-07-04 1988-01-06 Politechnika Slaska Im Wincent Combustion of solid fuels

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 381 (M-547)[2438], 19. Dezember 1986; & JP-A-61 173 012 (HITACHI) 04-08-1986 *
PATENT ABSTRACTS OF JAPAN, Band 8, Nr. 191 (M-322)[1628], 4. September 1984; & JP-A-59 81 408 (BABCOCK) 11-05-1984 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 22 (M-354)[1745], 30. Januar 1985; & JP-A-59 167 608 (BABCOCK) 21-09-1984 *

Also Published As

Publication number Publication date
EP0363812A2 (de) 1990-04-18

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