WO2008008475A3 - Process for the removal of mercury from gases - Google Patents

Process for the removal of mercury from gases Download PDF

Info

Publication number
WO2008008475A3
WO2008008475A3 PCT/US2007/015965 US2007015965W WO2008008475A3 WO 2008008475 A3 WO2008008475 A3 WO 2008008475A3 US 2007015965 W US2007015965 W US 2007015965W WO 2008008475 A3 WO2008008475 A3 WO 2008008475A3
Authority
WO
WIPO (PCT)
Prior art keywords
mercury
gases
removal
combustion gas
hyperdispersant
Prior art date
Application number
PCT/US2007/015965
Other languages
French (fr)
Other versions
WO2008008475A2 (en
Inventor
Peter J Hurley
Original Assignee
Solucorp Ind Ltd
Peter J Hurley
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 Solucorp Ind Ltd, Peter J Hurley filed Critical Solucorp Ind Ltd
Publication of WO2008008475A2 publication Critical patent/WO2008008475A2/en
Publication of WO2008008475A3 publication Critical patent/WO2008008475A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/34—Dehalogenation using reactive chemical agents able to degrade
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B43/00—Obtaining mercury
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
    • 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
    • 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
    • B01D2251/402—Alkaline earth metal or magnesium compounds of magnesium
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/02—Working-up flue dust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Treating Waste Gases (AREA)

Abstract

A method is provided for removing elemental mercury from a combustion gas by allowing the combustion gas to contact an aqueous dispersion or slurry (which can be a spray or aerosol) containing an alkaline-earth metal sulfide and a hyperdispersant or other surface- active agent, and preferably a phosphate and a pH buffer.
PCT/US2007/015965 2006-07-11 2007-07-11 Process for the removal of mercury from gases WO2008008475A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83019306P 2006-07-11 2006-07-11
US60/830,193 2006-07-11

Publications (2)

Publication Number Publication Date
WO2008008475A2 WO2008008475A2 (en) 2008-01-17
WO2008008475A3 true WO2008008475A3 (en) 2008-07-31

Family

ID=38923922

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/015965 WO2008008475A2 (en) 2006-07-11 2007-07-11 Process for the removal of mercury from gases

Country Status (1)

Country Link
WO (1) WO2008008475A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102131562A (en) * 2009-05-08 2011-07-20 克拉基斯技术控股公司 Process and composition for removing heavy metal from combustion gas

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7776294B2 (en) 2008-02-13 2010-08-17 Cylenchar Limited Air pollution reduction solution
AU2011272725B2 (en) 2010-07-02 2014-11-06 Mercury Capture Intellectual Property, Llc Cement kiln exhaust gas pollution reduction
PL2922615T3 (en) * 2012-11-26 2020-05-18 Ecolab Usa Inc. Control of mercury emissions
BR112018003056B1 (en) 2015-08-21 2022-09-13 Ecolab Usa Inc METHOD AND USE OF PERACETIC ACID TO REDUCE MERCURY EMISSIONS
US10926308B2 (en) 2017-09-22 2021-02-23 HMR Solutions, Inc. Method and reagent system for treating mercury-contaminated material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534944A (en) * 1982-11-04 1985-08-13 Environmental Protection Systems, Limited Mercury vapor suppressant
US5207877A (en) * 1987-12-28 1993-05-04 Electrocinerator Technologies, Inc. Methods for purification of air
US5306475A (en) * 1987-05-18 1994-04-26 Ftu Gmbh Technische Entwicklung Und Forschung Im Umweltschutz Reactive calcium hydroxides
US7247285B2 (en) * 2002-12-02 2007-07-24 Bert Zauderer Reduction of sulfur, nitrogen oxides and volatile trace metals from combustion in furnaces and boilers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4534944A (en) * 1982-11-04 1985-08-13 Environmental Protection Systems, Limited Mercury vapor suppressant
US5306475A (en) * 1987-05-18 1994-04-26 Ftu Gmbh Technische Entwicklung Und Forschung Im Umweltschutz Reactive calcium hydroxides
US5207877A (en) * 1987-12-28 1993-05-04 Electrocinerator Technologies, Inc. Methods for purification of air
US7247285B2 (en) * 2002-12-02 2007-07-24 Bert Zauderer Reduction of sulfur, nitrogen oxides and volatile trace metals from combustion in furnaces and boilers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102131562A (en) * 2009-05-08 2011-07-20 克拉基斯技术控股公司 Process and composition for removing heavy metal from combustion gas

Also Published As

Publication number Publication date
WO2008008475A2 (en) 2008-01-17

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