FI69694B - Nox-reduktion i multisolida svaevbaeddsfoerbraenningsanordningar - Google Patents

Nox-reduktion i multisolida svaevbaeddsfoerbraenningsanordningar Download PDF

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Publication number
FI69694B
FI69694B FI812631A FI812631A FI69694B FI 69694 B FI69694 B FI 69694B FI 812631 A FI812631 A FI 812631A FI 812631 A FI812631 A FI 812631A FI 69694 B FI69694 B FI 69694B
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FI
Finland
Prior art keywords
particles
region
bed
combustion
fluidized bed
Prior art date
Application number
FI812631A
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English (en)
Finnish (fi)
Other versions
FI812631L (fi
FI69694C (fi
Inventor
Ke-Tien Liu
Herman Nack
Original Assignee
Battelle Development Corp
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22313021&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI69694(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Battelle Development Corp filed Critical Battelle Development Corp
Publication of FI812631L publication Critical patent/FI812631L/fi
Application granted granted Critical
Publication of FI69694B publication Critical patent/FI69694B/fi
Publication of FI69694C publication Critical patent/FI69694C/fi

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Classifications

    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/32—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with introduction into the fluidised bed of more than one kind of moving particles
    • 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
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/005—Fluidised bed combustion apparatus comprising two or more beds
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • 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 
    • F23C2206/00—Fluidised bed combustion
    • F23C2206/10—Circulating fluidised bed
    • F23C2206/101—Entrained or fast fluidised bed
    • 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 
    • F23C2206/00—Fluidised bed combustion
    • F23C2206/10—Circulating fluidised bed
    • F23C2206/103—Cooling recirculating particles
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/09—Reaction techniques
    • Y10S423/16—Fluidization

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Treating Waste Gases (AREA)
  • Catalysts (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Traffic Control Systems (AREA)

Claims (10)

1 Patentkrav
1. Sätt att sanka kväveoxidhalten till en önskad niva och minimera svaveldioxidhalten i förbränningsgaserna frln förbränning av bränsle 5 i en raed flera fasta ämnen arbetande svävbädd, som har en undre tät fluidiserad bädd med relativt Stora bäddpartiklar, en Övre dispergerad infangad bädd av relativt sett finare partiklar, vilka atermatas genom den tätare fluidiserade bädden, och ett däri infangat svavelsorptions-material, vid vilket 10 (A) ett nedre omrlde av svävbädden drives under stökiometriska förhallanden sa att NO sänkes tili den önskade nivan. x (B) ett övre omrlde av svävbädden ovanför det vid stökiometriska för-15 hlllanden drivna, undre omrldet drives vid oxiderande förhallanden för att fullständiga förbränningen av bränslet, känneteck-n a t därav, (C) att en kornstorleksskillnad upprätthälles mellan de relativt sett 20 större partiklarna och de relativt sett finare partiklarna, sa väsent- ligen alla av de förra partiklarna har atminstone 4 ggr sa stor korn-storlek som väsentligen alla de sistnämnda partiklarna och (D) att atminstone en del av de kylda, relativt sett finare partiklarna 25 atermatas fran den inflngade bädden genom väsentligen enbart det övre omrldet, som drives under oxiderande förhallanden, varigenom temperaturen i oxidationsomradet sänkes tili en niva, som befrämjar svavelinflngning medelst svavelsorptionsmaterialet. 30
2. Sätt enligt patentkravet 1, kännetecknat därav, att sekundärluften insprutas i förbränningsapparaten mellan det undre vid stökiometriska förhallanden drivna omrldet och det övre vid oxiderande förhallanden drivna omradet. 35
3. Sätt enligt patentkravet 2, kännetecknat därav, att extra sekundärluft inmatas i förbränningsapparaten inom det vid oxiderande förhallanden drivna omrldet.
FI812631A 1979-12-26 1981-08-26 Nox-reduktion i multisolida svaevbaeddsfoerbraenningsanordningar FI69694C (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/106,745 US4704084A (en) 1979-12-26 1979-12-26 NOX reduction in multisolid fluidized bed combustors
US10674579 1979-12-26
PCT/US1980/001737 WO1981001873A1 (en) 1979-12-26 1980-12-22 No x reduction in multisolid fluidized bed combustors
US8001737 1980-12-22

Publications (3)

Publication Number Publication Date
FI812631L FI812631L (fi) 1981-08-26
FI69694B true FI69694B (fi) 1985-11-29
FI69694C FI69694C (fi) 1986-03-10

Family

ID=22313021

Family Applications (1)

Application Number Title Priority Date Filing Date
FI812631A FI69694C (fi) 1979-12-26 1981-08-26 Nox-reduktion i multisolida svaevbaeddsfoerbraenningsanordningar

Country Status (12)

Country Link
US (1) US4704084A (sv)
EP (2) EP0042418A1 (sv)
JP (1) JPS56501811A (sv)
AT (1) ATE12188T1 (sv)
BR (1) BR8009003A (sv)
CA (1) CA1156516A (sv)
DE (1) DE3070358D1 (sv)
DK (1) DK150285C (sv)
FI (1) FI69694C (sv)
NO (1) NO153746C (sv)
WO (1) WO1981001873A1 (sv)
ZA (1) ZA808096B (sv)

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Also Published As

Publication number Publication date
ZA808096B (en) 1982-01-27
EP0033808B1 (en) 1985-03-20
JPS56501811A (sv) 1981-12-10
CA1156516A (en) 1983-11-08
WO1981001873A1 (en) 1981-07-09
FI812631L (fi) 1981-08-26
DK375981A (da) 1981-08-25
DK150285B (da) 1987-01-26
NO153746B (no) 1986-02-03
NO153746C (no) 1986-05-21
US4704084A (en) 1987-11-03
DK150285C (da) 1987-10-26
FI69694C (fi) 1986-03-10
EP0033808A1 (en) 1981-08-19
EP0042418A1 (en) 1981-12-30
DE3070358D1 (en) 1985-04-25
ATE12188T1 (de) 1985-04-15
BR8009003A (pt) 1981-10-20
NO812872L (no) 1981-08-25

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