FI73724B - Foerfarande foer samtidig alstring av braenngas och processvaerme ur kolhaltiga material. - Google Patents

Foerfarande foer samtidig alstring av braenngas och processvaerme ur kolhaltiga material. Download PDF

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Publication number
FI73724B
FI73724B FI821104A FI821104A FI73724B FI 73724 B FI73724 B FI 73724B FI 821104 A FI821104 A FI 821104A FI 821104 A FI821104 A FI 821104A FI 73724 B FI73724 B FI 73724B
Authority
FI
Finland
Prior art keywords
gas
gasification
fluidized bed
combustion
stage
Prior art date
Application number
FI821104A
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English (en)
Finnish (fi)
Other versions
FI821104A0 (fi
FI73724C (sv
FI821104L (fi
Inventor
Hans Beisswenger
Georg Daradimos
Martin Hirsch
Ludolf Plass
Harry Serbent
Original Assignee
Metallgesellschaft Ag
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Publication date
Application filed by Metallgesellschaft Ag filed Critical Metallgesellschaft Ag
Publication of FI821104A0 publication Critical patent/FI821104A0/fi
Publication of FI821104L publication Critical patent/FI821104L/fi
Application granted granted Critical
Publication of FI73724B publication Critical patent/FI73724B/fi
Publication of FI73724C publication Critical patent/FI73724C/sv

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/463—Gasification of granular or pulverulent flues in suspension in stationary fluidised beds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/86—Other features combined with waste-heat boilers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/002—Removal of contaminants
    • C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
    • C10K1/004—Sulfur containing contaminants, e.g. hydrogen sulfide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/02—Dust removal
    • C10K1/026—Dust removal by centrifugal forces
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Carbon And Carbon Compounds (AREA)

Claims (11)

1. Förfarande för samtidig alstring av bränngas och processvärme frän kolhaltiga material genom att i ett 5 första virvelskiktsteg förgasa och därefter bränna vid för-gasningen överblivna brännbara beständsdelar i ett andra virvelskiktsteg, varvid förgasningen genomförs vid ett tryck av högst 5 bar och vid en temperatur mellan 800-1100°C med hjälp av en syrehaltig gas i närvaro av vatten-10 änga i ett cirkulerande virvelskikt (1, 2, 3) och därvid omsätts 40-80 vikt-% av kolet som utgängsmaterialet inne-häller kännetecknat därav, att a) den vid förgasningen bildade gasen, vars temperatur är mellan 800-1000°C, i virveltillständ befrias frän sva- 15 veiföreningar, därefter avkyls och stoftet avlägsnus därut b) äterstoden frän förgasningen tillsammans med frän gasreningen kommande biprodukter, säsom belastat svavelav-lägsningsmedel, stoft och gasvatten, mätäs i ett annat cirku- ' lerande virvelskikt (21, 22, 23) och däri bränns de äter- 20 stäende brinnande beständsdelarna vid ett luftförhällandetal A = 1,05-1,40.
2. Förfarande englit patentkravet 1, k ä n n e -t e c k n a t därav, att vid förgasningen omsätts 40-60 vikt-% av kolet som utgängsmaterialet innehäller. 25
3. Förfarande enligt patentkravet 1 eller 2, kän netecknat därav, att i förgasningssteget (1, 2, 3) mätäs vattenänga, huvudsakligen i form av virvelgas (6) och syrehaltig gas, huvudsakligen i form av sekundärgas (5).
. 4. Förfarande enligt nägot av patentkraven 1-3, 30 kännetecknat därav, att gasernas uppehällstid vid förgasningssteget (1, 2, 3) - beräknat ovanför inlopps-stället (4) för det kolhaltiga materialet - regleras tili 1-5 sekunder.
" ; 5. Förfarande enligt nägot av patentkraven 1-4, 35 kännetecknat därav, att frän de frän förgas-ningssteget (1, 2, 3) avgäende gaserna i ett cirkulerande virvelskikt med hjälp av kalk eller dolomit eller motsva- 21 73724 rande brända produkter, vilkas partikelstorlek d 50 är P mellan 30-200 /im, avlägsnas svavel och därför regleras i virvelskiktreaktorn en genomsnittlig suspensionstäthet av 3 3 0,1-10 kg/m , företrädesvis 1-5 kg/m och en cirkulerande 5 fastämnesmängd per timme, som motsvarar ätminstone 5-fal- digt vikten av fastämnet i reaktionsschaktet.
6. Förfarande enligt nägot av patentkraven 1-5, kännetecknat därav, ett gasens hastighet vid svavelavlägsnandet regleras till mellan 4-8 m/s (beräknat 10 som hastighet i tomt rör).
7. Förfarande enligt nägot av patentkraven 1-6, kännetecknat därav, att allt svavelavlägsnings-medel, även det som behövs vid förbränningssteget, tillsätts i steget, där svavlet avlägsnas frän gasen. 15
8. Förfarande enligt nägot av patentkraven 1-7, kännetecknat därav, att förbränningen genomförs i tvä steg med pä olika höjder inmatade syrehaltiga gaser (24 , 25) .
9. Förfarande enligt patentkravet 8, k ä n n e -20 tecknat därav, att over den övre gasmatningen (25) ästadskommes en genomsnittlig suspensionstäthet mellan 15-100 kg/m^ genom inställning av virvel- och sekundärgas-mängderna och ätminstone en väsentlig del av förbrännings-värmen leds bort medelst avkylningsytor som är belägna ovan-25 för den övre gasmatningen inne i det fria reaktorrummet.
10. Förfarande enligt patentkravet 8, kännetecknat därav, att ovanför den övre gasmatningen (25) ästadkommes en genomsnittlig suspensionstäthet mellan n 10-40 kg/m° genom inställning av virvel- (24) och sekundär-30 gasmängderna (25), hett fastämne avlägsnas frän det cirku-lerande virvelskiktet (21 , 22, 23) och avkyls i virveltill-" ständ medelst direkt eller indirekt värmeväxling och ätmins tone en delström av det avkylda fastämnet returneras (40) : tili det cirkulerande virvelskiktet (21 , 22, 23). 35
11. Förfarande enligt nägot av kraven 1-10, kän netecknat därav, att tili förbränningssteget yt-terligare mätäs kolhaltiga material.
FI821104A 1981-04-07 1982-03-30 Förfarande för samtidig alstring av bränngas och processvärme ur kolha ltiga material. FI73724C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3113993 1981-04-07
DE3113993A DE3113993A1 (de) 1981-04-07 1981-04-07 Verfahren zur gleichzeitigen erzeugung von brenngas und prozesswaerme aus kohlenstoffhaltigen materialien

Publications (4)

Publication Number Publication Date
FI821104A0 FI821104A0 (fi) 1982-03-30
FI821104L FI821104L (fi) 1982-10-08
FI73724B true FI73724B (fi) 1987-07-31
FI73724C FI73724C (sv) 1987-11-09

Family

ID=6129565

Family Applications (1)

Application Number Title Priority Date Filing Date
FI821104A FI73724C (sv) 1981-04-07 1982-03-30 Förfarande för samtidig alstring av bränngas och processvärme ur kolha ltiga material.

Country Status (19)

Country Link
US (1) US4444568A (sv)
EP (1) EP0062363B1 (sv)
JP (1) JPS57179290A (sv)
AR (1) AR227714A1 (sv)
AT (1) ATE17866T1 (sv)
AU (1) AU545446B2 (sv)
BR (1) BR8201974A (sv)
CA (1) CA1179846A (sv)
CS (1) CS250214B2 (sv)
DE (2) DE3113993A1 (sv)
ES (1) ES511221A0 (sv)
FI (1) FI73724C (sv)
GR (1) GR75461B (sv)
IE (1) IE52546B1 (sv)
IN (1) IN152949B (sv)
MX (1) MX159901A (sv)
NO (1) NO155545C (sv)
NZ (1) NZ199930A (sv)
ZA (1) ZA822345B (sv)

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AU8238982A (en) 1982-10-14
GR75461B (sv) 1984-07-20
EP0062363A1 (de) 1982-10-13
IN152949B (sv) 1984-05-05
NZ199930A (en) 1985-07-31
FI821104A0 (fi) 1982-03-30
ZA822345B (en) 1983-11-30
ES8306785A1 (es) 1983-06-01
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NO155545B (no) 1987-01-05
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IE820796L (en) 1982-10-07
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US4444568A (en) 1984-04-24
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