IN2015DN02652A - - Google Patents

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Publication number
IN2015DN02652A
IN2015DN02652A IN2652DEN2015A IN2015DN02652A IN 2015DN02652 A IN2015DN02652 A IN 2015DN02652A IN 2652DEN2015 A IN2652DEN2015 A IN 2652DEN2015A IN 2015DN02652 A IN2015DN02652 A IN 2015DN02652A
Authority
IN
India
Prior art keywords
exhaust gas
waste water
mercury
post
desulfurized waste
Prior art date
Application number
Inventor
Shintaro Honjo
Satoru Sugita
Original Assignee
Mitsubishi Hitachi Power Sys
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 Mitsubishi Hitachi Power Sys filed Critical Mitsubishi Hitachi Power Sys
Publication of IN2015DN02652A publication Critical patent/IN2015DN02652A/en

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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
    • 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
    • B01D53/64—Heavy metals or compounds thereof, e.g. mercury
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B01D2257/602—Mercury or mercury compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides

Abstract

This exhaust gas processing apparatus produces a post mercury oxidation exhaust gas by denitrating an exhaust gas of a combustion device, then produces a desulfurized waste water by desulfurizing the post- mercury- oxidation exhaust gas, supplies the desulfurized waste water to the combustion device , and controls the amount of the desulfurized waste water to be returned for reuse in the desulfurization in accordance with the halogen concentration in the desulfurized waste water. This exhaust gas processing apparatus is capable of adequately removing mercury from the exhaust gas, and is also capable of more adequately desulfurizing the post- mercury -oxidation exhaust gas.
IN2652DEN2015 2012-11-28 2013-11-13 IN2015DN02652A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/687,716 US8535626B1 (en) 2012-11-28 2012-11-28 Exhaust gas treatment apparatus and exhaust gas treatment method
PCT/JP2013/080729 WO2014084054A1 (en) 2012-11-28 2013-11-13 Exhaust gas processing apparatus and exhaust gas processing method

Publications (1)

Publication Number Publication Date
IN2015DN02652A true IN2015DN02652A (en) 2015-09-18

Family

ID=49122299

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2652DEN2015 IN2015DN02652A (en) 2012-11-28 2013-11-13

Country Status (9)

Country Link
US (1) US8535626B1 (en)
EP (1) EP2926885B1 (en)
JP (1) JP5984961B2 (en)
CN (1) CN104822436B (en)
CA (1) CA2887440A1 (en)
ES (1) ES2650868T3 (en)
IN (1) IN2015DN02652A (en)
PL (1) PL2926885T3 (en)
WO (1) WO2014084054A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5984712B2 (en) * 2013-02-25 2016-09-06 三菱日立パワーシステムズ株式会社 Exhaust gas treatment system and exhaust gas treatment method
CN106039980B (en) * 2016-08-04 2018-08-17 山东奥特高科环保科技有限公司 A kind of high-temperature flue gas mercury removal device and technique
CN111135692A (en) * 2018-11-05 2020-05-12 新疆硅基新材料创新中心有限公司 Method and system for recycling waste slurry obtained by power plant boiler flue gas desulfurization and denitrating power plant boiler flue gas
JP7351726B2 (en) * 2019-11-18 2023-09-27 三菱重工業株式会社 Gypsum slurry dewatering system

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123355A (en) * 1977-11-21 1978-10-31 Nasa Simultaneous treatment of SO2 containing stack gases and waste water
JPS57136921A (en) * 1981-02-19 1982-08-24 Mitsubishi Heavy Ind Ltd Treatment of waste liquid from wet type stack gas treatment device
JP2704652B2 (en) 1989-02-09 1998-01-26 バブコツク日立株式会社 Wet flue gas desulfurization method
JP2805497B2 (en) * 1989-05-11 1998-09-30 千代田化工建設株式会社 Treatment of wet flue gas desulfurization wastewater
JPH10128055A (en) 1996-10-29 1998-05-19 Chiyoda Corp Flue gas desulfurizer and gypsum slurry treatment
JP3935547B2 (en) * 1997-02-19 2007-06-27 三菱重工業株式会社 Exhaust gas treatment method and exhaust gas treatment apparatus
AU2002224599A1 (en) * 2000-07-31 2002-02-13 Showa Denko K.K. Method of treating combustion gas and treating apparatus
JP2002224533A (en) 2001-02-05 2002-08-13 Babcock Hitachi Kk Method and apparatus for flue gas desulfurization
JP4838579B2 (en) * 2005-12-21 2011-12-14 三菱重工業株式会社 Mercury removal system and mercury removal method
JP5003887B2 (en) * 2007-07-27 2012-08-15 株式会社Ｉｈｉ Exhaust gas treatment method and exhaust gas treatment apparatus
JPWO2010146670A1 (en) 2009-06-17 2012-11-29 三菱重工業株式会社 Mercury removal system and mercury removal method for mercury-containing high-temperature exhaust gas
CA2764121C (en) 2009-06-17 2014-09-09 Mitsubishi Heavy Industries, Ltd. Mercury reduction system and mercury reduction method of flue gas containing mercury
WO2010146672A1 (en) 2009-06-17 2010-12-23 三菱重工業株式会社 System for removing mercury and method of removing mercury from mercury-containing high-temperature discharge gas
JP5284251B2 (en) * 2009-12-09 2013-09-11 バブコック日立株式会社 Oxy-combustion exhaust gas treatment device and method of operating the exhaust gas treatment device
JP5385114B2 (en) * 2009-12-14 2014-01-08 バブコック日立株式会社 Combustion exhaust gas mercury removal method and combustion exhaust gas purification device.
JPWO2011104841A1 (en) 2010-02-25 2013-06-17 三菱重工業株式会社 Exhaust gas treatment system and exhaust gas treatment method
WO2011104840A1 (en) * 2010-02-25 2011-09-01 三菱重工業株式会社 Exhaust gas treatment system, and exhaust gas treatment method
JP5554162B2 (en) * 2010-06-30 2014-07-23 三菱重工業株式会社 Mercury treatment system in exhaust gas
US8715402B2 (en) 2011-03-22 2014-05-06 Mitsubishi Heavy Industries, Ltd. Air pollution control system and air pollution control method, spray drying device of dewatering filtration fluid from desulfurization discharged water, and method thereof

Also Published As

Publication number Publication date
EP2926885A4 (en) 2016-08-31
EP2926885B1 (en) 2017-11-08
EP2926885A1 (en) 2015-10-07
CA2887440A1 (en) 2014-06-05
JP5984961B2 (en) 2016-09-06
JPWO2014084054A1 (en) 2017-01-05
US8535626B1 (en) 2013-09-17
WO2014084054A1 (en) 2014-06-05
CN104822436A (en) 2015-08-05
PL2926885T3 (en) 2018-02-28
ES2650868T3 (en) 2018-01-22
CN104822436B (en) 2017-05-31

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