IN2015DE00163A - - Google Patents

Info

Publication number
IN2015DE00163A
IN2015DE00163A IN163DE2015A IN2015DE00163A IN 2015DE00163 A IN2015DE00163 A IN 2015DE00163A IN 163DE2015 A IN163DE2015 A IN 163DE2015A IN 2015DE00163 A IN2015DE00163 A IN 2015DE00163A
Authority
IN
India
Prior art keywords
mercury
salts
reactive halogen
halogen species
species
Prior art date
Application number
Inventor
M Gray Sterling
B Jarvis James
W Kosler Steven
Original Assignee
Urs Corp
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 Urs Corp filed Critical Urs Corp
Publication of IN2015DE00163A publication Critical patent/IN2015DE00163A/en

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
    • 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
    • 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
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/108—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/606—Carbonates
    • 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
    • B01D2258/025—Other waste gases from metallurgy plants
    • 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
    • B01D2259/00—Type of treatment
    • B01D2259/12—Methods and means for introducing reactants
    • B01D2259/124—Liquid reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/12—Methods and means for introducing reactants
    • B01D2259/128—Solid reactants

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (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)

Abstract

Processes and methods exist for decreasing emissions of mercury upon combustion of fossil fuels such as coal. Halidc salts can be effective when used at locations where they are thermally decomposed to form reactive halogen species, or in combination with an adsorbent material such as activated carbon. Halide salts, such as calcium bromide and sodium bromide, are not typically used at locations downstream of the economizer, where the temperature is typically below around 500 'C, because these salts are non-thermolabile and do not decompose to produce reactive halogen species. However, in flue gas streams that certain flue gas constituents, such as sulfur trioxide or sulfuric acid, reactive halogen species can be produced via chemical reaction. These species react with elemental mercury through various means to form an oxidized form of mercury that is more easily captured in downstream pollution control devices such as particulate control devices or SO2 scrubbers.
IN163DE2015 2014-02-05 2015-01-19 IN2015DE00163A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461935884P 2014-02-05 2014-02-05
US14/489,909 US8980207B1 (en) 2014-02-05 2014-09-18 Method and system for removal of mercury from a flue gas

Publications (1)

Publication Number Publication Date
IN2015DE00163A true IN2015DE00163A (en) 2015-08-07

Family

ID=51702256

Family Applications (1)

Application Number Title Priority Date Filing Date
IN163DE2015 IN2015DE00163A (en) 2014-02-05 2015-01-19

Country Status (4)

Country Link
US (2) US8865099B1 (en)
EP (1) EP2905064A1 (en)
CN (1) CN104815541B (en)
IN (1) IN2015DE00163A (en)

Families Citing this family (12)

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US11298657B2 (en) 2010-10-25 2022-04-12 ADA-ES, Inc. Hot-side method and system
US8951487B2 (en) 2010-10-25 2015-02-10 ADA-ES, Inc. Hot-side method and system
US8496894B2 (en) * 2010-02-04 2013-07-30 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US8845986B2 (en) 2011-05-13 2014-09-30 ADA-ES, Inc. Process to reduce emissions of nitrogen oxides and mercury from coal-fired boilers
US8883099B2 (en) 2012-04-11 2014-11-11 ADA-ES, Inc. Control of wet scrubber oxidation inhibitor and byproduct recovery
US9957454B2 (en) 2012-08-10 2018-05-01 ADA-ES, Inc. Method and additive for controlling nitrogen oxide emissions
US9889451B2 (en) 2013-08-16 2018-02-13 ADA-ES, Inc. Method to reduce mercury, acid gas, and particulate emissions
US8865099B1 (en) * 2014-02-05 2014-10-21 Urs Corporation Method and system for removal of mercury from a flue gas
PE20180409A1 (en) 2015-08-21 2018-02-28 Ecolab Usa Inc COMPLEXING AND ELIMINATION OF MERCURY FROM COMBUSTION GAS DESULFURATION SYSTEMS
CR20180166A (en) 2015-08-21 2018-05-10 Ecolab Usa Inc TRAINING OF COMPLEXES AND REMOVAL OF MERCURY FROM COMBUSTION GAS DESULFURATION SYSTEMS
CN110997111B (en) * 2017-07-06 2022-09-27 埃科莱布美国股份有限公司 Enhanced mercury oxidant injection
CN110772959A (en) * 2019-11-11 2020-02-11 山东大学 System and method for flue injection coupling fly ash agglomeration and demercuration of chlorine-rich desulfurization wastewater

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US5435980A (en) 1991-11-04 1995-07-25 Niro A/S Method of improving the Hg-removing capability of a flue gas cleaning process
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DE19850054A1 (en) * 1998-10-30 2000-05-04 Karlsruhe Forschzent Improved removal of mercury from combustion exhaust gases uses a wash solution containing bromide ions in addition to hydrogen peroxide
US6855859B2 (en) 1999-03-31 2005-02-15 The Babcock & Wilcox Company Method for controlling elemental mercury emissions
US6808692B2 (en) * 2002-02-14 2004-10-26 Oehr Klaus H Enhanced mercury control in coal-fired power plants
US6960329B2 (en) 2002-03-12 2005-11-01 Foster Wheeler Energy Corporation Method and apparatus for removing mercury species from hot flue gas
US6878358B2 (en) 2002-07-22 2005-04-12 Bayer Aktiengesellschaft Process for removing mercury from flue gases
TWI277441B (en) 2004-03-22 2007-04-01 Babcock & Wilcox Co Bromine addition for the improved removal of mercury from flue gas
US7288233B2 (en) * 2004-08-03 2007-10-30 Breen Energy Solutions Dry adsorption of oxidized mercury in flue gas
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Also Published As

Publication number Publication date
CN104815541A (en) 2015-08-05
EP2905064A1 (en) 2015-08-12
CN104815541B (en) 2017-07-28
US8865099B1 (en) 2014-10-21
US8980207B1 (en) 2015-03-17

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