DK2714245T3 - Fremgangsmåde til at øge levetiden og/eller den katalytiske aktivitet af en scr-katalysator - Google Patents

Fremgangsmåde til at øge levetiden og/eller den katalytiske aktivitet af en scr-katalysator Download PDF

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Publication number
DK2714245T3
DK2714245T3 DK12793161.6T DK12793161T DK2714245T3 DK 2714245 T3 DK2714245 T3 DK 2714245T3 DK 12793161 T DK12793161 T DK 12793161T DK 2714245 T3 DK2714245 T3 DK 2714245T3
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iron
compounds
compound
flue gas
phosphorus
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DK12793161.6T
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English (en)
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Mandar R Gadgil
S Behrooz Ghorishi
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Babcock & Wilcox Co
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
    • 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
    • B01D53/86—Catalytic processes
    • B01D53/8696—Controlling the catalytic process
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J7/00—Arrangement of devices for supplying chemicals to fire
    • 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
    • B01D2251/30—Alkali metal compounds
    • B01D2251/306—Alkali metal compounds of potassium
    • 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
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/55—Compounds of silicon, phosphorus, germanium or arsenic
    • 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
    • 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
    • B01D53/90—Injecting reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/10—Furnace staging
    • F23C2201/101—Furnace staging in vertical direction, e.g. alternating lean and rich zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/20—Sulfur; Compounds thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/101—Baghouse type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00—Intercepting solids
    • F23J2217/10—Intercepting solids by filters
    • F23J2217/102—Intercepting solids by filters electrostatic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/10—Catalytic reduction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/40—Sorption with wet devices, e.g. scrubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/60—Sorption with dry devices, e.g. beds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/50—Blending
    • F23K2201/505—Blending with additives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties

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

Claims (13)

1. Fremgangsmåde til at øge det aktive liv af en SCR-katalysator, hvilken fremgangsmåde omfatter de følgende trin: a) at tilvejebringe i det mindste én jernholdig forbindelse til et forbrændingsområde eller en røggasstrøm i en ovn eller en kedel, inden røggassen kommer ind i en SCR b) at gøre det muligt for den i det mindste ene jernholdige forbindelse at reagere med gasformige phosphorforbindelser eller phosphorholdige forbindelser, der måtte forefindes i forbrændingsområdet eller røggassen, inden røggassen kommer ind i SCR'en c) at tilvejebringe i det mindste én halogenholdig forbindelse til et forbrændingsområde eller en røggasstrøm i en ovn eller en kedel, inden røggassen kommer ind i en SCR, med det forbehold at den halogenholdige forbindelse ikke er et j ernhalogenid d) at gøre det muligt for den i det mindste ene halogenholdige forbindelse at reagere med og/eller oxidere kviksølv, der måtte forefindes i forbrændingsområdet eller røggassen, hvorved fremgangsmåden muliggør en øgning af den katalytiske aktivitet og/eller den katalytiske levetid på mindst 10 procent ved en driftstid på mindst 2000 timer.
2. Fremgangsmåde ifølge krav 1, hvorved den jernholdige forbindelse er valgt blandt metallisk jern, ét eller flere jernoxider, jerncarbonat eller blandinger af to eller flere af disse.
3. Fremgangsmåde ifølge krav 1 eller 2, hvorved den jernholdige forbindelse er valgt blandt jern(III)oxid, jern(II)carbonat, jern(II)oxid eller blandinger af to eller flere af disse.
4. Fremgangsmåde ifølge krav 1 eller 2, hvorved den jernholdige forbindelse er valgt blandt jern(III)oxid, jern (II)carbonat eller en blanding af disse.
5. Fremgangsmåde ifølge et af kravene 1 til 4, hvorved den i det mindste ene jernholdige forbindelse tilvejebringes til forbrændingsområdet ved tilsætning til kul i pulverform.
6. Fremgangsmåde ifølge et af kravene 1 til 5, hvorved den i det mindste ene jernholdige forbindelse tilvejebringes til forbrændingsområdet via en dedikeret tilførselslinje.
7. Fremgangsmåde ifølge et af kravene 1 til 6, hvorved den halogenholdige forbindelse er valgt blandt kaliumbromid, kaliumchlorid, kaliumfluorid, kaliumiodid, natriumbromid, natriumchlorid, natriumfluorid, natriumiodid, calciumbromid, calciumchlorid, calciumfluorid, calciumiodid, aluminiumbromid, aluminiumchlorid, aluminiumfluorid, aluminiumiodid, overgangsmetalhalogenider med det forbehold, at overgangsmetallet ikke er jern, eller en blanding af to eller flere af disse eller blandinger af to eller flere af disse.
8. Fremgangsmåde ifølge et af kravene 1 til 7, hvorved den jernholdige forbindelse er valgt blandt jern (III)carbonat, og den halogenholdige forbindelse er valgt blandt calciumbromid.
9. Fremgangsmåde ifølge et af kravene 1 til 8, hvorved den i det mindste ene halogenholdige forbindelse tilvejebringes til forbrændingsområdet ved tilsætning til kul i pulverform.
10. Fremgangsmåde ifølge et af kravene 1 til 9, hvorved den i det mindste ene halogenholdige forbindelse tilvejebringes til forbrændingsområdet via en dedikeret tilførselslinje.
11. Fremgangsmåde ifølge et af kravene 1 til 10, hvorved den i det mindste ene jernholdige forbindelse tilvejebringes ved et støkiometrisk overskudsforhold mellem jern og phosphor i området 2,5:1 til 10:1.
12. Fremgangsmåde ifølge et af kravene 1 til 11, hvorved den i det mindste ene jernholdige forbindelse tilvejebringes ved et støkiometrisk overskudsforhold mellem jern og phosphor i området 3,5:1 til 8:1.
13. Fremgangsmåde ifølge et af kravene 1 til 12, hvorved den i det mindste ene halogenholdige forbindelse tilvejebringes i en tilstrækkelig mængde til at yde en halogenkoncentration på mellem 10 ppm og 200 ppm.
DK12793161.6T 2011-05-27 2012-05-23 Fremgangsmåde til at øge levetiden og/eller den katalytiske aktivitet af en scr-katalysator DK2714245T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/117,332 US8691719B2 (en) 2009-04-22 2011-05-27 System and method for increasing the service life and/or catalytic activity of an SCR catalyst and control of multiple emissions
PCT/US2012/039175 WO2012166480A1 (en) 2011-05-27 2012-05-23 System and method for increasing the service life and/or catalytic activity of an scr catalyst and control of multiple emissions

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DK2714245T3 true DK2714245T3 (da) 2017-04-18

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US (2) US8691719B2 (da)
EP (1) EP2714245B1 (da)
CN (1) CN103561849B (da)
AU (1) AU2012262684B2 (da)
CA (1) CA2834796A1 (da)
DK (1) DK2714245T3 (da)
ES (1) ES2621361T3 (da)
HU (1) HUE032492T2 (da)
PL (1) PL2714245T3 (da)
PT (1) PT2714245T (da)
TW (1) TWI587912B (da)
WO (1) WO2012166480A1 (da)
ZA (1) ZA201308245B (da)

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Publication number Publication date
AU2012262684B2 (en) 2017-05-25
US8691719B2 (en) 2014-04-08
PL2714245T3 (pl) 2017-07-31
CN103561849B (zh) 2016-04-20
EP2714245A4 (en) 2014-10-22
ES2621361T3 (es) 2017-07-03
CN103561849A (zh) 2014-02-05
CA2834796A1 (en) 2012-12-06
US9874350B2 (en) 2018-01-23
US20110229388A1 (en) 2011-09-22
EP2714245B1 (en) 2017-01-11
TWI587912B (zh) 2017-06-21
EP2714245A1 (en) 2014-04-09
TW201313303A (zh) 2013-04-01
HUE032492T2 (en) 2017-09-28
ZA201308245B (en) 2014-12-23
WO2012166480A1 (en) 2012-12-06
AU2012262684A1 (en) 2013-11-14
PT2714245T (pt) 2017-03-03
NZ617183A (en) 2016-02-26
US20140216309A1 (en) 2014-08-07

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