ES2044347T3 - Desazuframiento de gases de combustion. - Google Patents

Desazuframiento de gases de combustion.

Info

Publication number
ES2044347T3
ES2044347T3 ES90115531T ES90115531T ES2044347T3 ES 2044347 T3 ES2044347 T3 ES 2044347T3 ES 90115531 T ES90115531 T ES 90115531T ES 90115531 T ES90115531 T ES 90115531T ES 2044347 T3 ES2044347 T3 ES 2044347T3
Authority
ES
Spain
Prior art keywords
combustion gases
sulphite
overflow
oxidation
calcium
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
ES90115531T
Other languages
English (en)
Inventor
Ronald Joseph Rathi
Lewis Bendl Benson
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.)
Dravo Lime Co
Original Assignee
Dravo Lime Co
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 Dravo Lime Co filed Critical Dravo Lime Co
Application granted granted Critical
Publication of ES2044347T3 publication Critical patent/ES2044347T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/464—Sulfates of Ca from gases containing sulfur oxides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

UN METODO PARA ELIMINAR BIOXIDO DE AZUFRE PROCEDENTE DE GASES DE LA COMBUSTION, CON OXIDACION DE SULFITO DE CALCIO EN LA DESCARGA PROCEDENTE DE UN SISTEMA DE DEPURACION DE LIQUIDOS, PARA OBTENER YESO, OXIDIZA EL SULFITO EN UN DESBORDAMIENTO ESPESADOR, A UN PH ENTRE 4''0 Y 6''5. EL SULFITO DE CALCIO SE OXIDIZA A UN SULFATO DE CALCIO QUE SE PRECIPITA DESDE UN MEDIO ACUOSO, Y SE SEPARA, EN TANTO QUE EL MEDIO ACUOSO ACIDICO SE RECICLA A UNA FASE DE ACIDIFICACION ANTERIOR A LA OXIDACION. PUEDE DESCARGARSE UNA PORCION POSTERIOR MENOR DE MEZCLA LAVADORA, DESDE LA UNIDAD LAVADORA DE LIQUIDO, A UN PH DE 4''5 A 6''0 Y TAMBIEN TRATADA CON ACIDO OXIDIZADO Y EL YESO RESULTANTE SEPARADO.
ES90115531T 1989-08-18 1990-08-13 Desazuframiento de gases de combustion. Expired - Lifetime ES2044347T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/395,667 US4976936A (en) 1989-08-18 1989-08-18 Flue gas desulfurization with oxidation of calcium sulfite in FGD discharges

Publications (1)

Publication Number Publication Date
ES2044347T3 true ES2044347T3 (es) 1994-01-01

Family

ID=23563985

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90115531T Expired - Lifetime ES2044347T3 (es) 1989-08-18 1990-08-13 Desazuframiento de gases de combustion.

Country Status (6)

Country Link
US (1) US4976936A (es)
EP (1) EP0414094B1 (es)
AT (1) ATE89764T1 (es)
CA (1) CA2023434C (es)
DE (1) DE69001729T2 (es)
ES (1) ES2044347T3 (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018131A1 (en) * 1990-05-14 1991-11-28 Materials-Concepts-Research Limited Process to produce hydrogen and/or hemihydrate calcium sulphate from calcium sulphite
DE4034497C1 (es) * 1990-10-30 1992-02-13 Metallgesellschaft Ag, 6000 Frankfurt, De
US5082639A (en) * 1990-11-06 1992-01-21 Dravo Lime Company Sulfur dioxide removal from gases using a modified lime
US5433925A (en) * 1991-05-24 1995-07-18 Freeport-Mcmoran Inc. Method and apparatus for removing sulfur dioxide from gas streams
FR2697846B1 (fr) * 1992-11-10 1995-01-20 Total Raffinage Distribution Utilisation comme charge pour polymères de chaux sulfatée provenant de la désulfuration par voie sèche de fumées.
US5270026A (en) * 1992-12-11 1993-12-14 Dravo Lime Company Sulfur dioxide scrubbing process producing purified magnesium hydroxide
US5312609A (en) * 1992-12-31 1994-05-17 Dravo Lime Company Method of sulfur dioxide removal from gaseous streams with α-hemihydrate gypsum product formation
US5308509A (en) * 1993-03-08 1994-05-03 The Babcock & Wilcox Company FGD performance enhancement by hydroclone and recycling steps
SE511987C2 (sv) * 1993-03-09 2000-01-10 Eka Chemicals Ab Metod för avskiljning av sulfat från en vattenhaltig elektrolyt i en alkalimetallkloratprocess
CA2147059C (en) * 1994-04-28 1999-08-10 John W. College Magnesium-enhanced sulfur dioxide scrubbing with gypsum formation
US5486342A (en) * 1994-06-13 1996-01-23 Electric Power Research Institute Clear liquor scrubbing of sulfur dioxide with forced oxidation in flue gas desulfurization system
JP2923208B2 (ja) * 1994-09-12 1999-07-26 三菱重工業株式会社 湿式排煙脱硫装置
US5562892A (en) * 1995-01-26 1996-10-08 Kirk; Donald W. Process for the production of alpha hemihydrate calcium sulfate from flue gas sludge
DE29517698U1 (de) * 1995-07-29 1996-01-18 Gottfried Bischoff Gmbh & Co Rauchgasentschwefelungsanlage
JP3015718B2 (ja) * 1995-09-08 2000-03-06 三菱重工業株式会社 排煙処理システム
US5614158A (en) * 1995-10-20 1997-03-25 Dravo Lime Company Process for removing sulfur dioxide from gases and producing gypsum and purified magnesium hydroxide
US5846286A (en) * 1997-03-07 1998-12-08 Dravo Lime Company Method for removing NOx from a gas stream while producing an alkaline earth nitrate fertilizer composition
FR2764206B1 (fr) * 1997-06-10 1999-09-03 Lab Sa Perfectionnement aux procedes de desulfuration des fumees par voie humide
FR2779663B1 (fr) * 1998-06-10 2000-09-01 Lab Sa Procede et installation de desulfuration de fumees
US6572832B2 (en) 2001-03-27 2003-06-03 Carmeuse North America Services, Inc. Method of removing sulfur dioxide from a gaseous stream in a wet scrubbing unit
US6695018B2 (en) * 2002-06-10 2004-02-24 The Babcock & Wilcox Company Collection scoop for flue gas desulfurization systems with bleed streams or ex situ forced oxidation
US6997119B2 (en) * 2002-07-23 2006-02-14 Radway Jerrold E Combustion emissions control and utilization of byproducts
US8226754B2 (en) * 2008-10-15 2012-07-24 Urs Corporation Low cost wet lime/limestone/sodium FGD system
CN109876759B (zh) * 2019-04-09 2021-07-20 昆山宇顺环保科技有限公司 利用低温废气加速脱硫灰中亚硫酸钙氧化的方法及装置
CN114191929B (zh) * 2021-12-24 2022-12-06 常州化工设计院有限公司 一种化工尾气处理工艺

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080779A (en) * 1937-05-18 Purification of combustion gases
US2090142A (en) * 1933-12-28 1937-08-17 Ici Ltd Wet purification of gases
CA950169A (en) * 1970-10-26 1974-07-02 Kureha Kagaku Kogyo Kabushiki Kaisha Production of gypsum from combustion exhaust gas
FR2173177B1 (es) * 1972-02-23 1977-09-02 Kureha Chemical Ind Co Ltd
US3919393A (en) * 1973-03-08 1975-11-11 Dravo Corp Process for sulfur dioxide removal from combustion gases
US3919394A (en) * 1973-05-14 1975-11-11 Dravo Corp Process for the removal of oxides of sulfur from a gaseous stream
US3961021A (en) * 1973-09-25 1976-06-01 Kureha Kagaku Kogyo Kabushiki Kaisha Method for removing sulfur dioxide from combustion exhaust gas
US4046856A (en) * 1974-03-15 1977-09-06 Kawasaki Jukogyo Kabushiki Kaisha Method for removing sulfur oxide from stack gas
JPS5820888B2 (ja) * 1975-02-25 1983-04-26 株式会社三井三池製作所 ハイガスチユウノ イオウサンカブツノ シヨリホウホウ
US3985860A (en) * 1975-09-22 1976-10-12 Pullman Incorporated Method for oxidation of SO2 scrubber sludge
JPS5252871A (en) * 1975-10-28 1977-04-28 Mitsubishi Heavy Ind Ltd Method of treating exhaust gas
JPS53117683A (en) * 1977-03-23 1978-10-14 Kawasaki Heavy Ind Ltd Removing method for sulfure oxides contained in exhayst gas
DE2755252A1 (de) * 1977-12-12 1979-07-05 Babcock Bsh Ag Verfahren zur entfernung von schwefeldioxid aus abgasen unter erzeugung von gips
US4164549A (en) * 1978-01-30 1979-08-14 Dravo Corporation Lime scrubbing process for sulfur dioxide removal from gases
JPS5511045A (en) * 1978-07-11 1980-01-25 Mitsubishi Heavy Ind Ltd Exhaust gas processing method
JPS597493B2 (ja) * 1980-10-28 1984-02-18 川崎重工業株式会社 排ガスの脱硫装置
JPS6058230A (ja) * 1983-09-09 1985-04-04 Babcock Hitachi Kk 排煙脱硫方法および装置
US4696805A (en) * 1985-02-05 1987-09-29 Mitsubishi Jukogyo Kabushiki Kaisha Method for desulfurizing exhaust gas

Also Published As

Publication number Publication date
CA2023434C (en) 1998-06-23
CA2023434A1 (en) 1991-02-19
DE69001729D1 (de) 1993-07-01
EP0414094B1 (en) 1993-05-26
US4976936A (en) 1990-12-11
DE69001729T2 (de) 1993-09-02
EP0414094A2 (en) 1991-02-27
ATE89764T1 (de) 1993-06-15
EP0414094A3 (en) 1991-06-26

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