DK3156117T3 - Fremgangsmåde til beskyttelse af SCR-katalysatorer og kontrol af forskellige emissioner - Google Patents

Fremgangsmåde til beskyttelse af SCR-katalysatorer og kontrol af forskellige emissioner Download PDF

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Publication number
DK3156117T3
DK3156117T3 DK16187128.0T DK16187128T DK3156117T3 DK 3156117 T3 DK3156117 T3 DK 3156117T3 DK 16187128 T DK16187128 T DK 16187128T DK 3156117 T3 DK3156117 T3 DK 3156117T3
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iron
bearing
compounds
compound
kaolin
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DK16187128.0T
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English (en)
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Mandar R Gadgil
Bryan J Jankura
Behrooz Seyed 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • 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
    • 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
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/90—Injecting reactants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
    • B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
    • B01J20/0229—Compounds of Fe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J33/00—Protection of catalysts, e.g. by coating
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/11—Clays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/30—Sulfur compounds
    • B01D2257/302—Sulfur oxides
    • 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
    • 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
    • F23J2215/10—Nitrogen; 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 
    • F23J2219/00—Treatment devices
    • F23J2219/10—Catalytic reduction devices
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Treating Waste Gases (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Claims (9)

1. Fremgangsmåde til forøgelse af en SCR-katalysators levetid, der er kendetegnet ved, at fremgangsmåden omfatter trinene: tilførsel af mindst én kaolinbærende lerforbindelse til en forbrændingszone eller røggasstrøm i en ovn eller kedel, før røggassen strømmer ind i en SCR, hvor den kaolinbærende lerforbindelse omfatter mindst 25 vægt-% kaolin; og; muliggørelse af, at den mindst ene kaolinbærende lerforbindelse kan reagere med eventuelle gasformige kalium-og/eller natriumforbindelser eller kalium- og/eller natriumholdige forbindelser, der er til stede i forbrændingszonen eller røggassen, før røggassen strømmer ind i SCR'en.
2. Fremgangsmåde ifølge krav 1, hvor den mindst ene kaolinbærende lerforbindelse er udvalgt blandt en eller flere kaolinitholdige lerarter.
3. Fremgangsmåde ifølge krav 1 eller 2, hvor den mindst ene kaolinbærende lerforbindelse tilføres til forbrændingszonen via en eller flere af gruppen, der omfatter: tilsætning til pulveriseret kul, biomasse eller en blanding deraf; tilsætning til råkul, biomasse i en hvilken som helst kombination deraf, som derefter pulveriseres eller reduceres i størrelse; og en dedikeret tilførselsledning eventuelt enten i vandig suspension eller i pulveriseret form.
4. Fremgangsmåde ifølge krav 1, 2 eller 3, hvor mængden af kaolin i den kaolinbærende forbindelse er mindst 30 vægt-%, mindst 40 vægt-%, mindst 50 vægt-%, mindst 60 vægt-%, mindst 70 vægt-%, mindst 75 vægt-%, mindst 80 vægt-%, mindst 90 vægt-% eller endog mindst 95 vægt-%
5. Fremgangsmåde ifølge et hvilket som helst af ovennævnte krav, hvor det støkiometriske forhold mellem kalium og/eller natrium og kaolinbærende forbindelse ligger i intervallet fra 1:3 til 3:1 eller fra 1:2 til 2:1 eller fra 1:1,5 til 1,5:1 eller fra 1:1,25 til 1,25:1 eller endog 1:1.
6. Fremgangsmåde ifølge et hvilket som helst af ovennævnte krav, hvor fremgangsmåden yderligere omfatter trinene: tilførsel af mindst én jernbærende forbindelse til en forbrændingszone eller røggasstrøm i en ovn eller kedel, før røggassen strømmer ind i en SCR; og muliggørelse af, at den mindst ene jernbærende forbindelse kan reagere med eventuelle gasformige phosphorforbindelser eller phosphorholdige forbindelser, der er til stede i forbrændingszonen eller røggassen, før røggassen strømmer ind i SCR'en.
7. Fremgangsmåde ifølge krav 6, hvor mindst én af den mindst ene jernbærende forbindelse er en jernbærende halogenidforbindelse, og hvor muliggørelsen af reaktion af den mindst ene jernbærende forbindelse omfatter muliggørelse af, at jerndelen af den mindst ene jernbærende forbindelse kan reagere, og fremgangsmåden yderligere omfatter: muliggørelse af, at halogeniddelen af den mindst ene jernbærende halogenidforbindelse kan reagere med eventuelle gasformige kviksølvsforbindelser eller kviksølvsholdige forbindelser, der er til stede i forbrændingszonen eller røggassen, til derved kontrol af kviksølv i en gas ved samtidig forøgelse af en SCR-katalysators levetid.
8. Fremgangsmåde ifølge krav 7, hvor den jernbærende halogenidforbindelse er udvalgt blandt jern (II)-bromid, jern (III)-bromid, jern (II)-chlorid, jern (III)-chlorid, jern (Il)-iodid, jern (Ill)-iodat eller blandinger af to eller flere af disse; og eventuelt hvor den jernbærende halogenidforbindelse er jern (II)-bromid.
9. Fremgangsmåde ifølge krav 7 eller 8, der yderligere omfatter tilførsel af en eller flere ikke-halogenholdige jernbærende forbindelser i kombination med det mindst ene jernbærende halogenid, hvor den ene eller de flere ikke-halogenholdige jernbærende forbindelser er udvalgt blandt jern (III)-oxid, jern (II)-carbonat, jern (II)-oxid eller blandinger af to eller flere af disse; og/eller yderligere omfatter tilførsel af jern (11)-carbonat i kombination med det mindst ene jernbærende halogenid; og/eller yderligere omfatter tilførsel af jern (II)-carbonat i kombination med et eller flere af jern (II)-bromid eller jern (III)-bromid.
DK16187128.0T 2010-10-21 2011-10-19 Fremgangsmåde til beskyttelse af SCR-katalysatorer og kontrol af forskellige emissioner DK3156117T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/909,753 US8303919B2 (en) 2010-10-21 2010-10-21 System and method for protection of SCR catalyst and control of multiple emissions
EP11185716.5A EP2444142B1 (en) 2010-10-21 2011-10-19 System and method for protection of scr catalyst and control of multiple emissions

Publications (1)

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DK3156117T3 true DK3156117T3 (da) 2019-04-15

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ID=44999681

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DK16187128.0T DK3156117T3 (da) 2010-10-21 2011-10-19 Fremgangsmåde til beskyttelse af SCR-katalysatorer og kontrol af forskellige emissioner
DK11185716.5T DK2444142T3 (da) 2010-10-21 2011-10-19 System og fremgangsmåde til beskyttelse af SCR-katalysatorer og kontrol af forskellige emissioner

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US (1) US8303919B2 (da)
EP (2) EP2444142B1 (da)
JP (1) JP5904575B2 (da)
KR (1) KR101945044B1 (da)
AR (1) AR083498A1 (da)
AU (1) AU2011224142B8 (da)
BR (1) BRPI1106273B1 (da)
CA (1) CA2755620C (da)
CL (1) CL2011002635A1 (da)
CO (1) CO6660074A1 (da)
DK (2) DK3156117T3 (da)
ES (2) ES2718228T3 (da)
HU (2) HUE029675T2 (da)
MX (1) MX2011010947A (da)
NZ (1) NZ595507A (da)
PL (2) PL3156117T3 (da)
PT (2) PT2444142T (da)
RU (1) RU2578564C2 (da)
TR (1) TR201904924T4 (da)
TW (1) TWI528997B (da)
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BRPI1106273B1 (pt) 2018-12-04
EP2444142A3 (en) 2014-01-22
EP2444142A2 (en) 2012-04-25
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