WO2006025900A3 - Reacteur multi-etage absorbant la chaleur et procede de reduction catalytique selective d'oxydes d'azote et oxydation de mercure elementaire - Google Patents

Reacteur multi-etage absorbant la chaleur et procede de reduction catalytique selective d'oxydes d'azote et oxydation de mercure elementaire Download PDF

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Publication number
WO2006025900A3
WO2006025900A3 PCT/US2005/019175 US2005019175W WO2006025900A3 WO 2006025900 A3 WO2006025900 A3 WO 2006025900A3 US 2005019175 W US2005019175 W US 2005019175W WO 2006025900 A3 WO2006025900 A3 WO 2006025900A3
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WO
WIPO (PCT)
Prior art keywords
nox
scr
oxidation
heat absorbing
stage heat
Prior art date
Application number
PCT/US2005/019175
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English (en)
Other versions
WO2006025900A2 (fr
Inventor
J Edward Cichanowicz
Original Assignee
J Edward Cichanowicz
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
Priority claimed from US10/927,461 external-priority patent/US7438876B2/en
Application filed by J Edward Cichanowicz filed Critical J Edward Cichanowicz
Publication of WO2006025900A2 publication Critical patent/WO2006025900A2/fr
Publication of WO2006025900A3 publication Critical patent/WO2006025900A3/fr

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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
    • B01D53/74—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
    • B01D53/8631—Processes characterised by a specific device
    • 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
    • B01D53/8665—Removing heavy metals or compounds thereof, e.g. mercury
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
    • F28D17/02—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles using rigid bodies, e.g. of porous material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D19/00—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • F28D19/041—Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier with axial flow through the intermediate heat-transfer medium
    • 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
    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
    • B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention concerne un appareil de réduction catalytique sélective comprenant au moins une première et une dernière couche de catalyseur montées en série afin de réduire les oxydes d'azote dans un gaz de combustion; au moins un échangeur de chaleur inter-étage situé derrière la première couche et devant la dernière couche, qui abaisse la température du gaz de combustion et agit comme un corps mélangeur afin de réduire l'écart standard du rapport NH3/NO lors de l'entrée dans les couches de catalyseur se trouvant derrière la première couche, ce qui permet une meilleure consommation à la fois d'ammoniac et d'oxyde d'azote dans le réacteur que celle qui serait obtenue en l'absence de l'échangeur de chaleur inter-étage.
PCT/US2005/019175 2004-08-27 2005-06-01 Reacteur multi-etage absorbant la chaleur et procede de reduction catalytique selective d'oxydes d'azote et oxydation de mercure elementaire WO2006025900A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/927,461 US7438876B2 (en) 2003-12-02 2004-08-27 Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury
US10/927,461 2004-08-27
USPCT/US2004/038222 2004-12-01
PCT/US2004/038222 WO2005061103A1 (fr) 2003-12-02 2004-12-01 Reacteur a thermo-absorption multi-etage et procede pour scr de nox pour l'oxydation du mercure elementaire

Publications (2)

Publication Number Publication Date
WO2006025900A2 WO2006025900A2 (fr) 2006-03-09
WO2006025900A3 true WO2006025900A3 (fr) 2006-04-20

Family

ID=36000472

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/019175 WO2006025900A2 (fr) 2004-08-27 2005-06-01 Reacteur multi-etage absorbant la chaleur et procede de reduction catalytique selective d'oxydes d'azote et oxydation de mercure elementaire

Country Status (1)

Country Link
WO (1) WO2006025900A2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7544339B2 (en) * 2007-03-27 2009-06-09 General Electric Company Method and apparatus for removing mercury from combustion exhaust gas
DE102010060104B4 (de) * 2010-10-21 2014-02-06 Elex Cemcat Ag Rauchgasreinigungsstufe und Zementherstellungsanlage diese aufweisend
CN101972652B (zh) * 2010-11-30 2012-05-09 上海交通大学 具有零价汞转化作用的复合型scr催化剂的制备方法
CN102091616B (zh) * 2010-12-02 2012-12-26 上海交通大学 用于零价汞催化氧化的含钌复合催化剂的制备方法
US9056274B2 (en) 2011-10-21 2015-06-16 General Electric Company System and method for controlling and reducing NOx emissions
WO2014000977A1 (fr) * 2012-06-27 2014-01-03 Siemens Aktiengesellschaft Dispositif d'épuration de gaz de combustion et procédé de réduction des oxydes d'azote issus des gaz de combustion d'une centrale électrique fonctionnant avec un combustible fossile
EP2987550B1 (fr) * 2014-08-18 2019-03-20 General Electric Technology GmbH Procédé d'élimination de nox
CN110152485B (zh) * 2019-05-24 2020-04-28 中建材环保研究院（江苏）有限公司 一种水泥窑炉烟气高温脱硝除尘装置
CN112403258B (zh) * 2019-11-06 2021-10-26 中冶长天国际工程有限责任公司 一种烟气脱一氧化碳脱硝的系统及方法
CN112007631A (zh) * 2020-09-22 2020-12-01 四川大学 活性炭/碳纳米管复合材料及其制备方法、催化剂及其应用
CN115414780B (zh) * 2022-09-05 2023-11-24 中国矿业大学 一种高浓度NOx烟气脱硝系统及控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4880378A (en) * 1986-09-30 1989-11-14 Siemens Aktiengesellschaft Combustion plant with a device for reducing nitrogen oxides in flue gases
US4889698A (en) * 1986-07-16 1989-12-26 A/S Niro Atomizer Process for removal or mercury vapor and/or vapor of noxious organic compounds and/or nitrogen oxides from flue gas from an incinerator plant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4889698A (en) * 1986-07-16 1989-12-26 A/S Niro Atomizer Process for removal or mercury vapor and/or vapor of noxious organic compounds and/or nitrogen oxides from flue gas from an incinerator plant
US4889698B1 (en) * 1986-07-16 2000-02-01 Niro Atomizer As Process for removal or mercury vapor and/ or vapor of noxious organic compounds and/ or nitrogen oxides from flue gas from an incinerator plant
US4880378A (en) * 1986-09-30 1989-11-14 Siemens Aktiengesellschaft Combustion plant with a device for reducing nitrogen oxides in flue gases

Also Published As

Publication number Publication date
WO2006025900A2 (fr) 2006-03-09

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