US20060185226A1 - Method of applying mercury reagent with coal - Google Patents

Method of applying mercury reagent with coal Download PDF

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Publication number
US20060185226A1
US20060185226A1 US11/065,398 US6539805A US2006185226A1 US 20060185226 A1 US20060185226 A1 US 20060185226A1 US 6539805 A US6539805 A US 6539805A US 2006185226 A1 US2006185226 A1 US 2006185226A1
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US
United States
Prior art keywords
coal
mercury
compound
ppmw
halogen
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.)
Abandoned
Application number
US11/065,398
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English (en)
Inventor
Dennis McDonald
Amy Evans
Bryan Jankura
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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox 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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Priority to US11/065,398 priority Critical patent/US20060185226A1/en
Assigned to BABCOCK & WILCOX COMPANY, THE reassignment BABCOCK & WILCOX COMPANY, THE ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EVANS, AMY P., JANKURA, BRYAN J., MCDONALD, DENNIS K.
Priority to CNA2006800059564A priority patent/CN101133141A/zh
Priority to PCT/US2006/006195 priority patent/WO2006091635A2/fr
Priority to CA002599420A priority patent/CA2599420A1/fr
Priority to UAA200709752A priority patent/UA93367C2/ru
Priority to EP06720957A priority patent/EP1888721A2/fr
Assigned to CREDIT SUISSE, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT reassignment CREDIT SUISSE, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: THE BABCOCK & WILCOX COMPANY
Publication of US20060185226A1 publication Critical patent/US20060185226A1/en
Assigned to BABCOCK & WILCOX CHINA HOLDINGS, INC., BABCOCK & WILCOX DENMARK HOLDINGS, INC., BABCOCK & WILCOX EBENSBURG POWER, INC., BABCOCK & WILCOX INTERNATIONAL SALES AND SERVICE CORPORATION, BABCOCK & WILCOX INTERNATIONAL, INC., NATIONAL ECOLOGY COMPANY, POWER SYSTEMS OPERATIONS, INC., REVLOC RECLAMATION SERVICE, INC., DIAMOND POWER INTERNATIONAL, INC., DIAMOND POWER AUSTRALIA HOLDINGS, INC., DIAMOND POWER CHINA HOLDINGS, INC., DIAMOND POWER EQUITY INVESTMENTS, INC., THE BABCOCK & WILCOX COMPANY, B & W SERVICE COMPANY, NORTH COUNTY RECYCLING, INC., AMERICON EQUIPMENT SERVICES, INC., AMERICON, INC., BABCOCK & WILCOX CONSTRUCTION CO., INC., BABCOCK & WILCOX EQUITY INVESTMENTS, INC., PALM BEACH RESOURCE RECOVERY CORPORATION, APPLIED SYNERGISTICS, INC., DIAMOND OPERATING CO., INC. reassignment BABCOCK & WILCOX CHINA HOLDINGS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/34—Other details of the shaped fuels, e.g. briquettes
    • C10L5/36—Shape
    • C10L5/366—Powders
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/10—Treating solid fuels to improve their combustion by using additives

Definitions

  • the present invention generally relates to combustion of fossil fuels in a boiler or furnace, and more specifically to a method of halogenating a fossil fuel prior to combustion to enhance removal of mercury from flue gas.
  • Coal fired utility plants are necessary to satisfy the energy needs of many countries. Heat energy derived from combusting fossil fuels such as coal produces steam utilized to drive energy producing turbines. A byproduct of the combustion process is a flue or combustion gas which, after a cleaning process, exits into the atmosphere.
  • Fossil fuels such as coal may contain varying levels of mercury. Upon combustion mercury may enter the flue gas as a solid particulate or as a gas in the vapor phase as elemental mercury or in one of many oxidized forms. Flue gas scrubbers are readily able to remove a substantial portion of mercury in the oxidized form, however current scrubber technology is relatively ineffective in removing elemental mercury from flue gas.
  • a general object of the present invention is drawn to a method for enhancing mercury removal from flue gas.
  • a more particular objective of the present invention involves a method for halogenating a fossil fuel such as coal prior to combustion to suppress the formation of elemental mercury in the vapor phase and favor its conversion to an oxidized form.
  • the present invention provides a method for halogenating a fossil fuel such as coal with chlorine or compounds thereof. After chlorination the coal is fed to a pulverizer which further admixes the coal and chlorine thereby more uniformly dispersing the chlorine amongst the pulverized coal particles. Once pulverized the coal is fed to at least one burner and combusted in the presence of oxygen. The admixed chlorine readily oxidizes the elemental mercury contained within the coal during combustion, thereby suppressing formation of mercury in the elemental form. The oxidized mercury is then removed downstream of the burner utilizing a scrubber or other mercury removal means readily known to one of ordinary skill in the art.
  • the invention comprises the steps of treating mercury containing coal with a chlorine containing compound, pulverizing the treated coal, conveying the pulverized treated coal to a pulverized coal burner, utilizing the burner to combust the pulverized treated coal, wherein the chlorine containing compound oxidizes a substantial portion of the mercury contained in the coal during combustion, and creating a flue gas comprising oxidized mercury.
  • the invention comprises the steps of providing a burner with a mercury containing coal, utilizing the burner to combust the coal, and combusting the coal in the presence of a halogen containing compound, wherein elemental mercury is oxidized during combustion.
  • a flue gas monitoring means is utilized to monitor the mercury concentration of flue gas exiting the boiler.
  • the monitoring means then relays a signal to a regulating means, which regulates the level of chlorine treatment applied to the coal prior to pulverization in order to maximize mercury oxidation.
  • a halogen other than chlorine such as bromine, iodine, fluorine, or compounds thereof, may by used to halogenate the fossil fuel.
  • the present invention due to its ease of incorporation and benefit in mercury removal, provides an important advantage over prior art methods due to unexpected advantages and cost savings associated with forgoing the need to install expensive mercury vapor removal means in order to lower mercury emissions. Further, as a single pulverizer may provide coal to numerous burners, substantial economic savings are observed by chlorinating the coal prior to combustion and utilizing existing piping between the pulverizer and burners thereby forgoing the need to install additional piping or ductwork to each burner.
  • FIG. 1 is a schematic diagram of an embodiment of the present invention.
  • a fossil fuel such as coal
  • a coal silo onto a belt feeder, such as a gravimetric feeder or other belt feeding apparatus.
  • the belt feeder in turn provides the coal to the pulverizer wherein the coal is pulverized to a predetermined particle size.
  • the coal Prior to being pulverized, preferably while the coal is on the belt feeder or alternatively dropping into the pulverizer, the coal is treated with a liquid or solid chlorine reagent, preferably sodium chloride or calcium chloride.
  • a liquid or solid chlorine reagent preferably sodium chloride or calcium chloride.
  • Spray nozzles located above and/or around the belt may be provided to treat the coal with liquid chlorine reagent prior to pulverization.
  • Reagent flow rate may be control manually by valves or alternatively utilize automated means.
  • reagent may be supplied to coal in the form of solid pellets, powder, or granules utilizing a solids feeder in place of the spray nozzle.
  • the coal is treated with between about 2 ppmw and 1200 ppmw of halogen, and more preferably between about 200 ppmw and 600 ppmw, wherein ppmw refers to pounds of halogen per one million pounds of a wet fossil fuel such as wet coal.
  • Treatment comprises the steps of providing the coal with sufficient chlorine to substantially suppress the formation of elemental mercury vapor, and pulverizing the coal in the presence of the chlorine reagent. During pulverization the coal and chlorine reagent are further admixed so as to provide more uniform distribution of chlorine amongst the pulverized coal particles.
  • the treated coal particles Upon exiting the pulverizer, the treated coal particles are fed through a series of coal pipes to a burner, wherein the coal is combusted, preferably at a temperature between about 1050° C. and about 2000° C., in the presence of oxygen.
  • the mercury contained within the coal oxidizes in the presence of chlorine to favor the production of an oxidized form of mercury, such as mercuric chloride, over elemental mercury in the vapor form.
  • Resulting mercury concentration in the flue gas exiting the boiler is decreased because scrubbers and other flue gas cleansing means are more readily able to remove mercury in the oxidized form, and formation of mercury in the elemental form is suppressed in favor of the oxidized form due to the presence of a halogen such as chlorine.
  • a single reagent storage means is used to supply chlorine reagent to multiple belt feeders utilizing control valves and piping that allows the treatment rate to any belt feeder to be controlled independently of the treatment rate to another belt feeder.
  • an automated means for controlling the treatment rate may be utilized.
  • a mercury detection means is installed in the flue gas stack to monitor the level of mercury in the flue gas as it exits into the atmosphere.
  • An electronic signal is then sent to a regulating means which conveys instructions to adjust the flowrate of the chlorine reagent treating the coal to a level which optimizes low mercury emissions.
  • the chlorine reagent may be replaced with another halogen reagent such as bromine, iodine, fluorine, etc. . . . or compounds thereof.
  • a combination of more than one halogen reagent may be used such as reagent mixture comprising both bromine and chlorine, or any other number of halogen reagent combinations incorporating more than one halogen reagent as would be known by one of ordinary skill in the art.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Treating Waste Gases (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
US11/065,398 2005-02-24 2005-02-24 Method of applying mercury reagent with coal Abandoned US20060185226A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US11/065,398 US20060185226A1 (en) 2005-02-24 2005-02-24 Method of applying mercury reagent with coal
CNA2006800059564A CN101133141A (zh) 2005-02-24 2006-02-23 在煤中使用汞试剂的方法
PCT/US2006/006195 WO2006091635A2 (fr) 2005-02-24 2006-02-23 Application d'un reactif au mercure a du charbon
CA002599420A CA2599420A1 (fr) 2005-02-24 2006-02-23 Application d'un reactif au mercure a du charbon
UAA200709752A UA93367C2 (ru) 2005-02-24 2006-02-23 Способ окисления ртути при сжигании ртутьсодержащего угля и способ образования окисленой ртути при его сжигании
EP06720957A EP1888721A2 (fr) 2005-02-24 2006-02-23 Application d'un reactif au mercure a du charbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/065,398 US20060185226A1 (en) 2005-02-24 2005-02-24 Method of applying mercury reagent with coal

Publications (1)

Publication Number Publication Date
US20060185226A1 true US20060185226A1 (en) 2006-08-24

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US11/065,398 Abandoned US20060185226A1 (en) 2005-02-24 2005-02-24 Method of applying mercury reagent with coal

Country Status (6)

Country Link
US (1) US20060185226A1 (fr)
EP (1) EP1888721A2 (fr)
CN (1) CN101133141A (fr)
CA (1) CA2599420A1 (fr)
UA (1) UA93367C2 (fr)
WO (1) WO2006091635A2 (fr)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060210463A1 (en) * 2005-03-17 2006-09-21 Comrie Douglas C Reducing mercury emissions from the burning of coal
WO2009005525A1 (fr) * 2007-07-03 2009-01-08 Albemarle Corporation Utilisation de composés contenant de l'halogène et de l'azote pour réduire des émissions de mercure pendant la combustion de charbon
WO2010036750A1 (fr) * 2008-09-24 2010-04-01 Albemarle Corporation Compositions de chlorure de brome pour retirer le mercure d'émissions produites durant la combustion d'un combustible
US20100263577A1 (en) * 2009-04-21 2010-10-21 Industrial Accessories Company Pollution abatement process for fossil fuel-fired boilers
US20110053100A1 (en) * 2009-08-28 2011-03-03 Sinha Rabindra K Composition and Method for Reducing Mercury Emitted into the Atmosphere
US8124036B1 (en) 2005-10-27 2012-02-28 ADA-ES, Inc. Additives for mercury oxidation in coal-fired power plants
US8226913B2 (en) 2005-03-17 2012-07-24 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US20120195815A1 (en) * 2011-02-01 2012-08-02 Shaw Environmental & Infrastructure, Inc. Emission control system
WO2012106715A1 (fr) * 2011-02-04 2012-08-09 ADA-ES, Inc. Application d'additifs à distance
US8372362B2 (en) 2010-02-04 2013-02-12 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US8383071B2 (en) 2010-03-10 2013-02-26 Ada Environmental Solutions, Llc Process for dilute phase injection of dry alkaline materials
US8496894B2 (en) 2010-02-04 2013-07-30 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US8524179B2 (en) 2010-10-25 2013-09-03 ADA-ES, Inc. Hot-side method and system
US8784757B2 (en) 2010-03-10 2014-07-22 ADA-ES, Inc. Air treatment process for dilute phase injection of dry alkaline materials
US8883099B2 (en) 2012-04-11 2014-11-11 ADA-ES, Inc. Control of wet scrubber oxidation inhibitor and byproduct recovery
US8951487B2 (en) 2010-10-25 2015-02-10 ADA-ES, Inc. Hot-side method and system
US8974756B2 (en) 2012-07-25 2015-03-10 ADA-ES, Inc. Process to enhance mixing of dry sorbents and flue gas for air pollution control
US9017452B2 (en) 2011-11-14 2015-04-28 ADA-ES, Inc. System and method for dense phase sorbent injection
US10350545B2 (en) 2014-11-25 2019-07-16 ADA-ES, Inc. Low pressure drop static mixing system
WO2019178137A1 (fr) * 2018-03-14 2019-09-19 Midwest Energy Emissions Corp Système d'injection d'halogénure
US10465137B2 (en) 2011-05-13 2019-11-05 Ada Es, Inc. Process to reduce emissions of nitrogen oxides and mercury from coal-fired boilers
US10589292B2 (en) 2013-08-16 2020-03-17 ADA-ES, Inc. Method to reduce mercury, acid gas, and particulate emissions
US10767130B2 (en) 2012-08-10 2020-09-08 ADA-ES, Inc. Method and additive for controlling nitrogen oxide emissions
US11298657B2 (en) 2010-10-25 2022-04-12 ADA-ES, Inc. Hot-side method and system

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AU2014256383B2 (en) * 2005-03-17 2016-08-04 Douglas C. Comrie Reducing mercury emissions from the burning of coal
CA2658469C (fr) 2008-10-03 2012-08-14 Rajender P. Gupta Procede de bromuration
CN102343200A (zh) * 2011-09-21 2012-02-08 中国华能集团清洁能源技术研究院有限公司 一种高效低成本的燃煤电厂汞污染控制方法及系统

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US9702554B2 (en) * 2005-03-17 2017-07-11 Nox Ii, Ltd. Sorbents for coal combustion
US8545778B2 (en) * 2005-03-17 2013-10-01 Nox Ii, Ltd. Sorbents for coal combustion
US7507083B2 (en) * 2005-03-17 2009-03-24 Douglas C Comrie Reducing mercury emissions from the burning of coal
US7674442B2 (en) * 2005-03-17 2010-03-09 Comrie Douglas C Reducing mercury emissions from the burning of coal
US10359192B2 (en) 2005-03-17 2019-07-23 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US20100139482A1 (en) * 2005-03-17 2010-06-10 Comrie Douglas C Reducing mercury emissions from the burning of coal
US8658115B2 (en) 2005-03-17 2014-02-25 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US10641483B2 (en) * 2005-03-17 2020-05-05 Nox Ii, Ltd. Sorbents for coal combustion
US20190093883A1 (en) * 2005-03-17 2019-03-28 Nox Ii, Ltd. Sorbents For Coal Combustion
US20100323308A1 (en) * 2005-03-17 2010-12-23 Comrie Douglas C Sorbents for coal combustion
US10670265B2 (en) * 2005-03-17 2020-06-02 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US20180224121A1 (en) * 2005-03-17 2018-08-09 Nox Ii, Ltd. Sorbents for coal combustion
US7988939B2 (en) 2005-03-17 2011-08-02 NOx II Ltd. Sorbents for coal combustion
US9945557B2 (en) 2005-03-17 2018-04-17 Nox Ii, Ltd. Sorbents for coal combustion
US8920158B2 (en) 2005-03-17 2014-12-30 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US10612779B2 (en) * 2005-03-17 2020-04-07 Nox Ii, Ltd. Sorbents for coal combustion
US7776301B2 (en) 2005-03-17 2010-08-17 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US20120100490A1 (en) * 2005-03-17 2012-04-26 Comrie Douglas C Sorbents for coal combustion
US8226913B2 (en) 2005-03-17 2012-07-24 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US20060210463A1 (en) * 2005-03-17 2006-09-21 Comrie Douglas C Reducing mercury emissions from the burning of coal
US11732888B2 (en) * 2005-03-17 2023-08-22 Nox Ii, Ltd. Sorbents for coal combustion
US9416967B2 (en) 2005-03-17 2016-08-16 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US20160025337A1 (en) * 2005-03-17 2016-01-28 Nox Ii, Ltd. Sorbents for coal combustion
US8313323B2 (en) * 2005-03-17 2012-11-20 Nox Ii, Ltd. Sorbents for coal combustion
US9169453B2 (en) 2005-03-17 2015-10-27 Nox Ii, Ltd. Sorbents for coal combustion
US10962224B2 (en) * 2005-03-17 2021-03-30 Nox Ii, Ltd. Sorbents for coal combustion
US11060723B2 (en) * 2005-03-17 2021-07-13 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal by remote sorbent addition
US8501128B2 (en) 2005-03-17 2013-08-06 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US20210332977A1 (en) * 2005-03-17 2021-10-28 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal by remote sorbent addition
US8114368B2 (en) 2005-03-17 2012-02-14 Nox Ii, Ltd. Sorbents for coal combustion
US11732889B2 (en) * 2005-03-17 2023-08-22 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal by remote sorbent addition
US9822973B2 (en) 2005-03-17 2017-11-21 Nox Ii, Ltd. Reducing mercury emissions from the burning of coal
US8124036B1 (en) 2005-10-27 2012-02-28 ADA-ES, Inc. Additives for mercury oxidation in coal-fired power plants
US8293196B1 (en) 2005-10-27 2012-10-23 ADA-ES, Inc. Additives for mercury oxidation in coal-fired power plants
WO2009005525A1 (fr) * 2007-07-03 2009-01-08 Albemarle Corporation Utilisation de composés contenant de l'halogène et de l'azote pour réduire des émissions de mercure pendant la combustion de charbon
JP2010532460A (ja) * 2007-07-03 2010-10-07 アルベマール・コーポレーシヨン 石炭燃焼期間中の水銀放出を低減させるための、ハロゲンおよび窒素含有化合物の使用
US20110165044A1 (en) * 2008-09-24 2011-07-07 Albemarle Corporation Bromine chloride compositions for removing mercury from emissions produced during fuel combustion
US8313543B2 (en) 2008-09-24 2012-11-20 Albemarle Corporation Bromine chloride compositions for removing mercury from emissions produced during fuel combustion
WO2010036750A1 (fr) * 2008-09-24 2010-04-01 Albemarle Corporation Compositions de chlorure de brome pour retirer le mercure d'émissions produites durant la combustion d'un combustible
AU2009296691B2 (en) * 2008-09-24 2014-01-16 Albemarle Corporation Bromine chloride compositions for removing mercury from emissions produced during fuel combustion
CN102164650A (zh) * 2008-09-24 2011-08-24 阿尔比马尔公司 用于从燃料燃烧过程中产生的排放物中去除汞的氯化溴组合物
JP2012503545A (ja) * 2008-09-24 2012-02-09 アルベマール・コーポレーシヨン 燃料の燃焼中に生成された放出物から水銀を除去するための塩化臭素組成物
US20100263577A1 (en) * 2009-04-21 2010-10-21 Industrial Accessories Company Pollution abatement process for fossil fuel-fired boilers
US20110053100A1 (en) * 2009-08-28 2011-03-03 Sinha Rabindra K Composition and Method for Reducing Mercury Emitted into the Atmosphere
US10427096B2 (en) 2010-02-04 2019-10-01 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US8372362B2 (en) 2010-02-04 2013-02-12 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US10843130B2 (en) 2010-02-04 2020-11-24 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US8496894B2 (en) 2010-02-04 2013-07-30 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US9352275B2 (en) 2010-02-04 2016-05-31 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US11213787B2 (en) 2010-02-04 2022-01-04 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US9221013B2 (en) 2010-02-04 2015-12-29 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US9884286B2 (en) 2010-02-04 2018-02-06 ADA-ES, Inc. Method and system for controlling mercury emissions from coal-fired thermal processes
US8784757B2 (en) 2010-03-10 2014-07-22 ADA-ES, Inc. Air treatment process for dilute phase injection of dry alkaline materials
US9149759B2 (en) 2010-03-10 2015-10-06 ADA-ES, Inc. Air treatment process for dilute phase injection of dry alkaline materials
US8383071B2 (en) 2010-03-10 2013-02-26 Ada Environmental Solutions, Llc Process for dilute phase injection of dry alkaline materials
US10730015B2 (en) 2010-10-25 2020-08-04 ADA-ES, Inc. Hot-side method and system
US9657942B2 (en) 2010-10-25 2017-05-23 ADA-ES, Inc. Hot-side method and system
US10124293B2 (en) 2010-10-25 2018-11-13 ADA-ES, Inc. Hot-side method and system
US8951487B2 (en) 2010-10-25 2015-02-10 ADA-ES, Inc. Hot-side method and system
US8524179B2 (en) 2010-10-25 2013-09-03 ADA-ES, Inc. Hot-side method and system
US11298657B2 (en) 2010-10-25 2022-04-12 ADA-ES, Inc. Hot-side method and system
US20120195815A1 (en) * 2011-02-01 2012-08-02 Shaw Environmental & Infrastructure, Inc. Emission control system
US9097420B2 (en) * 2011-02-01 2015-08-04 Shaw Environmental & Infrastructure, Inc. Emission control system
US8580214B2 (en) * 2011-02-01 2013-11-12 Shaw Environmental & Infrastructure, Inc. Emission control system
WO2012106715A1 (fr) * 2011-02-04 2012-08-09 ADA-ES, Inc. Application d'additifs à distance
US8992637B2 (en) 2011-02-04 2015-03-31 ADA-ES, Inc. Remote additive application
US10731095B2 (en) 2011-05-13 2020-08-04 ADA-ES, Inc. Process to reduce emissions of nitrogen oxides and mercury from coal-fired boilers
US10465137B2 (en) 2011-05-13 2019-11-05 Ada Es, Inc. Process to reduce emissions of nitrogen oxides and mercury from coal-fired boilers
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WO2006091635A3 (fr) 2007-09-07
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UA93367C2 (ru) 2011-02-10
CA2599420A1 (fr) 2006-08-31
WO2006091635A2 (fr) 2006-08-31

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