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WO1994008180A1 - Procede et dispositif permettant d'utiliser l'energie provenant des gaz de fumee de centrales electriques fonctionnant au charbon - Google Patents

Procede et dispositif permettant d'utiliser l'energie provenant des gaz de fumee de centrales electriques fonctionnant au charbon Download PDF

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Publication number
WO1994008180A1
WO1994008180A1 PCT/EP1993/002685 EP9302685W WO9408180A1 WO 1994008180 A1 WO1994008180 A1 WO 1994008180A1 EP 9302685 W EP9302685 W EP 9302685W WO 9408180 A1 WO9408180 A1 WO 9408180A1
Authority
WO
WIPO (PCT)
Prior art keywords
flue gas
acid
heat exchanger
scrubber
flue
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.)
Ceased
Application number
PCT/EP1993/002685
Other languages
German (de)
English (en)
Inventor
Bernd Krödel
Bernhard Hinze
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
Publication of WO1994008180A1 publication Critical patent/WO1994008180A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/507—Sulfur oxides by treating the gases with other liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers

Definitions

  • the invention relates to a method and an arrangement for the use of energy from flue gases in coal-fired power plants, the flue gases being cleaned in a flue gas scrubber and discharged into a cooling tower.
  • a device for shifting energy for a desulfurization system in which a heat exchanger is incorporated in the flue gas stream upstream of the scrubber, which is connected by a positively guided fluidized heat transfer medium to a further heat exchanger incorporated in the clean gas flow behind the scrubber, in the sense of a fluid exchanger, in which Flue gas flow between a heat exchanger and the scrubber as well as in the clean gas flow between the scrubber and another heat exchanger, a heat exchanger operating at a lower temperature level with hoses or pipes made of a corrosion-resistant and anti-adhesive plastic and all gas-wetted parts of the low-temperature heat exchanger with a corrosion-resistant anti-adhesive is integrated Plastic covered or coated (DE-PS 34 19 735).
  • the acid-proof heat exchangers made of "Teflon" tube bundles are arranged in the flue gas duct in front of the scrubber. Flue gas cooling is only carried out up to 130 ° C, which is why the flue gas must still be quenched before the SO2 integration in the scrubber. A deliberate change in the water balance of the washer is not achieved.
  • Flue gas cooling implemented in the acid dew point area but the possibilities of simplifying the system are not used.
  • a method for using the excess heat in the flue gas which is not required for the operation of a flue gas desulfurization system and which is fed to an air preheater and an electrostatic precipitator in front of the desulfurization system, the air preheating being divided into two air preheaters which are arranged upstream or downstream of the electrostatic filter in the main flue gas stream and that a partial flow of the flue gas corresponding to the excess heat is branched off before each air preheater for steam generation.
  • low-pressure steam is generated with the supply of the low-pressure steam in a separate saturated steam tuxbine.
  • the process has a very large additional system scope.
  • the invention has for its object to use the energy content of flue gases from coal-fired power plants in and below the acid dew point range.
  • the flue gas cooling takes place continuously up to the most favorable range for SO2 integration from ⁇ 180 ° C to> 50 ° C, preferably 60 ° C.
  • the heat exchanger is discontinuously cleaned of acid-ash contamination with the suspension, which is also used for flue gas scrubbing.
  • the heat energy extracted from the flue gas is used for preheating combustion air and / or machine condensate and / or feed water by means of heat displacement in the power plant process.
  • the arrangement according to the invention is characterized in that the acid-proof heat exchanger known per se and provided with a cleaning system is arranged in the flue gas inlet area of the scrubber via a combined scrubber sump, which also serves as an acid collecting pan.
  • This arrangement means that the flue gas cooler as an acid-proof heat exchanger and the flue gas scrubber form a unit in terms of plant technology.
  • This system-technical unit helps to shorten the entire smoke gas tract and thus to reduce the enclosed space.
  • the efficiency of power generation is further increased.
  • the application according to the invention achieves a significant reduction in the water requirement in the flue gas scrubber, since an additional quenching is wholly or partly dispensed with. It is no longer necessary to reheat the cooled flue gases after the flue gas scrubber by introducing them into the cooling tower.
  • the flue gas scrubber 1 has the flue gas inlet 2 with the extension 4 in its lower region.
  • the extension 4 opens into the chamber 5 of the flue gas scrubber 1.
  • the holder 7 for receiving the acid-proof heat exchanger 8 is arranged in the head region 6 of the chamber 5.
  • the acid-proof heat exchanger 8 is surrounded by the cleaning system 9.
  • the combined scrubber sump / acid collecting tray 3 is arranged in the lower area of the flue gas scrubber 1.
  • the laundry sump / acid collecting tray 3 is connected via line 10 to the spray levels 11 of the flue gas scrubber 1 and via line 12 to the cleaning system 9.
  • acid-proof heat exchangers 8 are arranged, so that flue gas cooling takes place by indirect heat transfer.
  • the cleaning system 9 is grouped around the heat exchanger segments for a discontinuous cleaning with suspension, which is brought in from the washing sump 3 via line 12. After leaving the heat exchanger 8, the flue gases flow through the spray levels 11, in which the final SO 2 washing takes place. The acids flowing off on the tubes of the heat exchanger 8 drip into the common laundry sump 3, which additionally serves as an acid collecting pan and as an acid neutralization basin. This arrangement helps due to the targeted continuous acid condensation and
  • the cleaned flue gases leaving the flue gas scrubber 1 are further cooled in an additional heat exchanger (not shown in the drawing) by preferably 10 K by preheating combustion air, as a result of which further flue gas energy can be converted into useful energies at higher temperatures and thus higher exergy.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)
  • Chimneys And Flues (AREA)

Abstract

L'invention concerne un procédé et un dispositif permettant d'utiliser l'énergie provenant des gaz de fumée de centrales électriques fonctionnant au charbon, selon lequel les gaz de fumée sont épurés dans un épurateur de gaz (1) et sont acheminés dans une tour de refroidissement. L'invention vise à permettre d'utiliser le contenu énergétique des gaz de fumée de centrales électriques fonctionnant au charbon au niveau et au-dessous du point de condensation acide. Cet objectif est atteint par le fait que les gaz de fumée sont refroidis dans la zone d'entrée de l'épurateur de gaz par l'échangeur thermique (8) qui résiste aux acides, jusqu'à une température inférieure au point de condensation acide. Les acides qui dégouttent sont enlevés du bassin de l'épurateur de gaz et sont neutralisés. Les gaz de fumée refroidis sont acheminés directement dans la zone d'épuration et sont conduits dans la tour de refroidissement sans réchauffage.
PCT/EP1993/002685 1992-10-02 1993-10-01 Procede et dispositif permettant d'utiliser l'energie provenant des gaz de fumee de centrales electriques fonctionnant au charbon Ceased WO1994008180A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4233685.6 1992-10-02
DE4233685A DE4233685C2 (de) 1992-10-02 1992-10-02 Verfahren und Anordnung zur Energienutzung von Rauchgasen in kohlegefeuerten Kraftwerken

Publications (1)

Publication Number Publication Date
WO1994008180A1 true WO1994008180A1 (fr) 1994-04-14

Family

ID=6469827

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002685 Ceased WO1994008180A1 (fr) 1992-10-02 1993-10-01 Procede et dispositif permettant d'utiliser l'energie provenant des gaz de fumee de centrales electriques fonctionnant au charbon

Country Status (5)

Country Link
CN (1) CN1104755A (fr)
DE (1) DE4233685C2 (fr)
SI (1) SI9300516A (fr)
TR (1) TR27383A (fr)
WO (1) WO1994008180A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105617849A (zh) * 2015-12-28 2016-06-01 山东天健水处理科技有限公司 一种多功能尾气吸收塔

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751851A1 (de) * 1997-11-22 1999-05-27 Babcock Anlagen Gmbh Aerosolminderung
CN1311891C (zh) * 2002-12-12 2007-04-25 上海电力学院 冷凝式烟气脱硫方法及其装置
CN101357294B (zh) * 2007-08-04 2012-05-30 山东省冶金设计院股份有限公司 一种可再生脱硫的工艺方法及其用途
CN101362047B (zh) * 2007-08-04 2012-05-09 山东省冶金设计院股份有限公司 可再生脱硫的工艺方法及其用途
CN101637692B (zh) * 2008-07-30 2011-12-21 山东省冶金设计院股份有限公司 用于烧结机的可再生脱硫的工艺方法
US8236093B2 (en) * 2009-09-16 2012-08-07 Bha Group, Inc. Power plant emissions control using integrated organic rankine cycle
CN102384482A (zh) * 2011-11-23 2012-03-21 金艺 无烟气排放的常压加热炉
RU2505341C1 (ru) * 2012-06-15 2014-01-27 Общество с ограниченной ответственностью "НПО Пылеочистка" Способ очистки газов
US20140112834A1 (en) * 2012-10-23 2014-04-24 Babcock & Wilcox Power Generation Group, Inc. System and method for controlling scale build-up in a wfgd
CN104406185A (zh) * 2014-10-31 2015-03-11 惠州市拓丰实业有限公司 一种锅炉烟气梯级余热回收节能器
CN105157051B (zh) * 2015-08-24 2018-01-05 上海华向节能环保科技有限公司 氟塑料余热回收与超低排放一体化装置
PL234424B1 (pl) * 2017-06-27 2020-02-28 N Ergia Spolka Z Ograniczona Odpowiedzialnoscia Instalacja odzysku ciepła i mokrego oczyszczania niskotemperaturowych spalin zwłaszcza w wodnorurowych kotłach energetycznych
CN108361682B (zh) * 2017-12-29 2019-07-12 吉林省同心热力有限责任公司 一种防雾霾式节能型燃烧炉或锅炉

Citations (6)

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WO1983001827A1 (fr) * 1981-11-23 1983-05-26 Monro, Richard, J. Generateur de chaleur ameliore
WO1985003342A1 (fr) * 1984-01-27 1985-08-01 Jacob Weitman Dispositif de recuperation thermique
DE3419735A1 (de) * 1984-05-26 1985-11-28 GEA Luftkühlergesellschaft Happel GmbH & Co, 4630 Bochum Energieverschiebungseinrichtung fuer eine entschwefelungsanlage
DE3446552A1 (de) * 1984-12-17 1986-06-26 Donald Dipl.-Ing. 1000 Berlin Herbst Vorrichtung zur waermerueckgewinnung und waesche von heissen, mit umweltschaedlichen verunreinigungen belasteten gasen
WO1987005686A1 (fr) * 1986-03-19 1987-09-24 Alfa-Laval Thermal Ab Procede et appareil servant a recuperer la chaleur provenant de gaz de fumee et a nettoyer lesdits gaz
DE4002434A1 (de) * 1990-01-27 1991-08-01 Gea Luftkuehler Happel Gmbh Verfahren und vorrichtung zur entstickung und entschwefelung von heissen abgasen, insbesondere aus feuerungen

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US4660511A (en) * 1986-04-01 1987-04-28 Anderson J Hilbert Flue gas heat recovery system
DE3637973A1 (de) * 1986-11-07 1988-05-19 Friedhelm Drumann Verfahren und vorrichtung zum reinigen und waermerueckgewinnung von abgasen
DE3934513C2 (de) * 1989-10-17 1996-06-13 Brueckner Trockentechnik Gmbh Abluftreinigungsanlage
DE4023540A1 (de) * 1990-07-25 1992-03-05 Krc Umwelttechnik Gmbh Verfahren zur reinigung von mit rauchgas angestroemten einbauflaechen zweistufiger rauchgasentschwefelungsanlagen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001827A1 (fr) * 1981-11-23 1983-05-26 Monro, Richard, J. Generateur de chaleur ameliore
WO1985003342A1 (fr) * 1984-01-27 1985-08-01 Jacob Weitman Dispositif de recuperation thermique
DE3419735A1 (de) * 1984-05-26 1985-11-28 GEA Luftkühlergesellschaft Happel GmbH & Co, 4630 Bochum Energieverschiebungseinrichtung fuer eine entschwefelungsanlage
DE3446552A1 (de) * 1984-12-17 1986-06-26 Donald Dipl.-Ing. 1000 Berlin Herbst Vorrichtung zur waermerueckgewinnung und waesche von heissen, mit umweltschaedlichen verunreinigungen belasteten gasen
WO1987005686A1 (fr) * 1986-03-19 1987-09-24 Alfa-Laval Thermal Ab Procede et appareil servant a recuperer la chaleur provenant de gaz de fumee et a nettoyer lesdits gaz
DE4002434A1 (de) * 1990-01-27 1991-08-01 Gea Luftkuehler Happel Gmbh Verfahren und vorrichtung zur entstickung und entschwefelung von heissen abgasen, insbesondere aus feuerungen

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105617849A (zh) * 2015-12-28 2016-06-01 山东天健水处理科技有限公司 一种多功能尾气吸收塔
CN105617849B (zh) * 2015-12-28 2018-06-29 山东天健水处理科技有限公司 一种多功能尾气吸收塔

Also Published As

Publication number Publication date
TR27383A (tr) 1995-02-02
DE4233685C2 (de) 1998-02-12
CN1104755A (zh) 1995-07-05
DE4233685A1 (de) 1994-04-07
SI9300516A (en) 1994-06-30

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