WO1997049953A1 - Procedes pour le traitement par fusion de dechets solides en vue de leur gazeification - Google Patents
Procedes pour le traitement par fusion de dechets solides en vue de leur gazeification Download PDFInfo
- Publication number
- WO1997049953A1 WO1997049953A1 PCT/JP1997/002191 JP9702191W WO9749953A1 WO 1997049953 A1 WO1997049953 A1 WO 1997049953A1 JP 9702191 W JP9702191 W JP 9702191W WO 9749953 A1 WO9749953 A1 WO 9749953A1
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- WO
- WIPO (PCT)
- Prior art keywords
- combustion
- melting
- gasification
- furnace
- solid waste
- Prior art date
Links
- 238000002309 gasification Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000002910 solid waste Substances 0.000 title claims abstract description 19
- 230000004927 fusion Effects 0.000 title abstract 3
- 238000002485 combustion reaction Methods 0.000 claims abstract description 85
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 35
- 239000001301 oxygen Substances 0.000 claims abstract description 35
- 238000002844 melting Methods 0.000 claims description 69
- 230000008018 melting Effects 0.000 claims description 67
- 239000007789 gas Substances 0.000 claims description 49
- 239000002893 slag Substances 0.000 claims description 31
- 238000000926 separation method Methods 0.000 claims description 7
- 241000233855 Orchidaceae Species 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 52
- 239000000446 fuel Substances 0.000 abstract description 15
- 239000002028 Biomass Substances 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 20
- 239000004576 sand Substances 0.000 description 14
- 238000000197 pyrolysis Methods 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000000571 coke Substances 0.000 description 6
- 150000002013 dioxins Chemical class 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000010813 municipal solid waste Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000005469 granulation Methods 0.000 description 3
- 230000003179 granulation Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000013341 scale-up Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 235000011453 Vigna umbellata Nutrition 0.000 description 1
- 240000001417 Vigna umbellata Species 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
-
- 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
- C10J3/48—Apparatus; Plants
- C10J3/482—Gasifiers with stationary fluidised bed
-
- 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
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
- C10J3/487—Swirling or cyclonic gasifiers
-
- 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
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
-
- 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
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K3/00—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
- C10K3/001—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by thermal treatment
- C10K3/003—Reducing the tar content
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/006—General arrangement of incineration plant, e.g. flow sheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
-
- 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
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/158—Screws
-
- 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
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
-
- 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
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- 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
- C10J2300/0983—Additives
- C10J2300/0993—Inert particles, e.g. as heat exchange medium in a fluidized or moving bed, heat carriers, sand
-
- 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
- C10J2300/0983—Additives
- C10J2300/0996—Calcium-containing inorganic materials, e.g. lime
-
- 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
- C10J2300/12—Heating the gasifier
- C10J2300/1223—Heating the gasifier by burners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/40—Gasification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/10—Combustion in two or more stages
- F23G2202/101—Combustion in two or more stages with controlled oxidant supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2202/00—Combustion
- F23G2202/20—Combustion to temperatures melting waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/30—Cyclonic combustion furnace
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/26—Biowaste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/28—Plastics or rubber like materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/70—Incinerating particular products or waste
- F23G2900/7006—Incinerating used automobiles
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- 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
Definitions
- the present invention relates to solid waste such as municipal solid waste, solidified fuel, slurry fuel, waste plastic, waste FRP, biomass waste, and shredder dust (waste rate, home appliances, etc.) or fuel derived from solid waste.
- the present invention relates to a treatment method by gasifying and burning gas.
- solidified fuel refers to one obtained by crushing and sorting municipal solid waste and then compression-molding with the addition of quick lime.
- Slurry fuel (SWM) is used to crush municipal solid waste into water slurry after being crushed. It is said to be oily by decomposition.
- F R P is a fiber reinforced plastic.
- Biomass waste includes water and sewage waste (impurities, sewage sludge), agricultural waste (rice husk, rice straw), forestry waste (sawdust, bark, thinned wood), industrial waste (pulp chips) Dust) and construction waste.
- S technology includes water and sewage waste (impurities, sewage sludge), agricultural waste (rice husk, rice straw), forestry waste (sawdust, bark, thinned wood), industrial waste (pulp chips) Dust) and construction waste.
- FIG. 3 shows the flow of the S method.
- reference numeral 31 denotes a melting furnace, in which a preliminary drying zone 32, a pyrolysis zone 33, and a combustion / melting zone 34 are formed.
- Reference numeral 35 denotes a dust remover
- reference numeral 36 denotes combustion_3 ⁇ 4. ⁇
- a waste
- b coke + limestone
- c oxygen-enriched air
- d oxygen-enriched air
- d oxygen-enriched air
- d oxygen-enriched air
- d oxygen-enriched air
- e product gas
- f air
- g dust
- h flue gas
- k Is too much.
- the inside of the melting furnace 31 has a drying zone 3 2 (200 to 300.C) and a thermal decomposition zone 33 (300 to 100 ° C).
- the combustion / melting zone 34 (at 1500 ° C or higher) are formed in layers in the order from HI.
- the waste a injected into the upper part of the furnace descends in the furnace while exchanging heat with the gas rising from the lower zone.
- the generated gas e flowing out of the upper part of the melting furnace 31 passes through the dust remover 35 and is supplied to the combustion furnace 36 to be burned at about 900 ° C.
- the carbides generated in the pyrolysis zone 33 descend into the melting and combustion zone 34 together with the coke and limestone b, and are burned at high temperature by the oxygen-enriched air c supplied from the tuyeres. You. The molten slag d and metal k due to the high temperature are discharged from the furnace bottom.
- Fig. 4 shows the flow of the R method.
- reference numeral 41 denotes a pyrolysis drum. Yes, a cooler 42, a sorting facility 43, a crusher 44, and a silo 45 are arranged adjacent to the pyrolysis drum 41 in sequence.
- Reference numeral 46 denotes a rotary melting furnace, and reference numeral 47 denotes a high-temperature air heater.
- a is waste
- f air
- i char
- j is incombustible
- e is generated gas
- d slag
- h flue gas.
- the waste a is supplied to the pyrolysis drum 41, which is externally heated by high-temperature air f, and slowly and pyrolyzes in an oxygen-free atmosphere at about 450 ° C while being stirred by rotation. It is gasified.
- the product gas e that has exited the pyrolysis drum 41 is directly supplied to the subsequent rotary melting furnace 46.
- the solid char i and the incombustible j are taken out of the pyrolysis drum 41, cooled in the cooler 42, and then sieved in the separation facility 43 to become coarse incombustible j and fine. It is separated into i.
- the powder i finely pulverized by the pulverizer 44 is stored in the silo 45, then sent to the melting furnace 46, and is heated to about 1300 ° together with the bovine gas e coming from the pyrolysis drum 1. High temperature combustion at C. The molten slag d is discharged from the bottom of the melting furnace 46.
- the problems of the above two methods are described.
- the S-type shaft furnace has a melting zone with a high temperature of 170 to 180 ° C at the bottom of the furnace, so the use of auxiliary fuel such as coke is inevitable, which increases operating costs.
- carbon dioxide emissions also increase.
- the metals contained in the waste are melted, and the recovered metals are alloyed. Therefore, it is not convenient to recycle metals in the form of bullion by type.
- this method is a furnace type called a fixed-bed furnace.However, since wastes of various shapes are piled up high in the furnace, even if gas is allowed to flow uniformly in the gaps between the wastes, blow-through or local Drift is inevitable. For this reason, stable operation is hindered, and it is inevitable that there will be significant fluctuations in the furnace pressure, gas generation amount, and gas composition.
- R-type rotary furnaces are not so efficient because heat transfer is due to inefficient external heat. Large size is inevitable, which is a problem on scale-up.
- the generated charcoal is taken out of the rotary furnace together with other incombustibles, and after cooling, coarse incombustibles are separated and removed. Next, it is pulverized and stored in a hopper. Furthermore, if necessary, an appropriate amount is cut out, transported, and supplied to the melting furnace.
- Such complications of equipment due to the short-handed handling of the cables not only increase equipment costs, but also hinder stable operation.
- the sensible heat possessed by the channel is lost by cooling or heat dissipation, but this is not desirable for energy use.
- the present invention has been made in view of the above circumstances, does not require auxiliary fuel such as coke, does not increase carbon dioxide emission, and does not oxidize and clean metals such as iron, copper, and aluminum.
- the objective of the present invention is to provide a method for gasification and melting of solid waste that can be recovered in a state, has a compact furnace, has a large scale, and does not require equipment related to fine pulverization of charcoal. Disclosure of the invention
- primary combustion in the gasification furnace fluid debris section is within 600 ⁇ 50 ° C, preferably within 600 ⁇ 30 ° C, and secondary combustion in the freeboard section It was found that the temperature should be within 75 ⁇ 75 ° C and that the tertiary combustion in the melting furnace should be 50-100 ° C higher than the ash flow temperature.
- the gasification furnace flow is below 500 ° C, the pyrolysis gasification reaction slows down, suppressing the amount of gas generated and increasing the accumulation of undecomposed substances in the fluidized debris.
- the amount of combustibles sent to the melting furnace that is, gas, tar, and char is reduced, and it becomes difficult to maintain the combustion temperature of the melting furnace.
- the gasification temperature needs to be set lower than 650 ° C. since the melting point of aluminum is 660 ° C. If the gasification temperature is higher than the melting point of aluminum, most of the aluminum will evaporate and will be trapped in the ash after the melting furnace, but most will be oxidized and of low value. turn into.
- sand silicon sand, etc.
- the average particle size is selected in the range of 0.4 to 0.8 mm. If it is less than 0.4 mm, the amount of treatment per hearth area will be small, so it is not economical. Above 0.8 marauder, the superficial velocity of the gas blown from the fluidized bed increases, creating a gap in the injection of waste from above the fluidized bed. That is, fine and light substances in the waste do not fall into the fluidized bed but are entrained by the gas. Also, the amount of gas generated by gas increases.
- the gasification furnace in this F method is characterized by the use of a shallow fluidized bed, but the bed height (stationary bed height) is preferably about 1.0 to 1.5 times the inner diameter of the fluidized bed.
- the superficial velocity of air or oxygen-containing gas supplied for primary combustion or fluidization is preferably about six times the u, nf (minimum fluidization rate) of the fluid medium. From this, the required gas flow rate per hearth square meter is 4 0 0 ⁇ 1 7 0 O Nm 3 / hr range and be Repa good.
- the heat required for pyrolysis gasification of waste is quickly and efficiently provided by the partial combustion of waste and the heat transfer effect of the flowing medium.
- Such a method of supplying heat is generally called an internal heat type, but it is clear that an internal heat type furnace is superior to an external heat type in terms of compactness and thermal efficiency.
- the char generated by the pyrolysis gasification reaction of the primary combustion is refined by the partial combustion and the turbulence of the fluid medium.
- the use of hard silica sand as a fluid medium further accelerates the crushing of powder.
- the specific gravity of the powder is small, ⁇ .1 to 0.2 because it is porous. As a result, a fine fluidized bed is formed on the fluidized bed of sand. If left untreated, the fluidized bed of the tank will reach the top of the freeboard, which will hinder the feed (conveyance) of waste to the gasifier.
- the supply S of air or oxygen-containing gas if the superficial velocity of all gases in the freeboard section is set to 0.7 m / sec or more, preferably 1.0 m / sec or more, fine It was found that the navy was easily pneumatically conveyed to the subsequent melting furnace.
- the supply position of air or oxygen-containing gas should be within 100 mm from the surface of the fluidized bed of sand.
- the freeboard can not only perform airflow classification but also perform its full function as a secondary combustion section, and in particular, can promote the combustion of char.
- the tertiary combustion in the melting furnace is intended to complete the low oxygen ratio combustion of the waste, to convert ash into molten slag, and to decompose dioxins and dioxin derivatives.
- the tertiary combustion is also performed by supplying an oxygen-containing gas.
- the combustion temperature of the melting furnace should be set at 50 to 100 ° C for the ash melting temperature for stable slag outflow.However, in order to completely decompose dioxin and dioxin derivatives, It was found that it was necessary to maintain high-temperature combustion of more than 130 ° C for 0.5 seconds (sec).
- auxiliary fuel such as coke is not required.
- auxiliary fuel such as coke
- it may be appropriately selected from air supplied to primary to tertiary combustion, oxygen-enriched air or oxygen.
- the melting furnace consists of a combustion chamber at the front stage and a slag separator at the latter stage.To efficiently separate gas and slag, the gas rising speed at the slag separator must be suppressed to 6 m / sec or less. It turned out that.
- the oxygen ratio of the total becomes low oxygen ratio combustion of about 1.3.
- the oxygen ratio refers to the ratio of the amount of oxygen used during combustion to the theoretical amount of combustion.
- the primary combustion in the fluidized bed part of the gasifier is 0.1 to 0.3
- the secondary combustion in the freeboard part is 0.05 to 0.1
- the tertiary combustion in the melting furnace is 0 to 0.3. It was experimentally found that the ratio was 9 to 1.1. That is, the oxygen ratio is 0.1 to 0.3 in the fluidized waste part of the fluidized bed gasifier, the oxygen ratio is 0.05 to 0.1 in the freeboard part, and the oxygen ratio is 0.9 in the melting furnace. Combustion of ⁇ 1.1 is performed, and the combined oxygen ratio of both furnaces is about 1.3.
- This F method is a combination of a fluidized-bed gasification furnace and a melting furnace (preferably a swirling melting furnace). The features of this system are listed below.
- Dioxins are not contained in exhaust gas and ash.
- Ash is collected as harmless slag from which heavy metals etc. do not elute. As a result, the life of the landfill can be extended, and it can be used for construction materials.
- Metals such as iron, copper, and aluminum can be recovered in an unoxidized and clean state, which enables recycling.
- the F method using a fluidized bed furnace as the gasification furnace is easier to operate, does not require auxiliary fuel such as coke, does not increase carbon dioxide emissions, and has the following characteristics: iron, copper, It is superior to the S method in that metals such as aluminum can be recovered in an unoxidized and clean state.
- the gasifier is compact, there is no mechanical drive unit, and scale-up is easy. In this regard, there is no need for any equipment relating to the fine grinding of charcoal (carbide). It became clear that it was superior to the R method.
- Some conventional incinerators do not have ash-melting equipment or have no ash-melting equipment in the vicinity, and treat incinerator ash and ash discharged from incinerators and waste heat boilers. You may be in distress. By receiving the ash from such a combustion facility into this facility and melting it with other [1] -type waste, it can be effectively used as high-quality slag that does not contain any pre-existing waste.
- FIG. 1 is a schematic diagram showing the configuration of an apparatus for carrying out the gasification and melting treatment method for solid waste according to the present invention
- Fig. 2 shows various types of waste generated by thermal decomposition when the waste is thermally decomposed.
- FIG. 3 is a schematic diagram showing an example of a conventional waste treatment system
- FIG. 4 is a schematic diagram showing another example of a conventional waste treatment system.
- FIG. 1 is a schematic diagram showing the configuration of an apparatus for performing gasification and melting treatment of solid waste according to the present invention.
- reference numeral 1 denotes a fluidized-bed gasifier, and waste is supplied to the fluidized-bed gasifier 1 by a quantitative supply device 2.
- a freeboard 3 Inside the fluidized-bed gasifier 1, a freeboard 3, a fluidized bed 4, an air distribution plate 5, and an air chamber 6 are formed.
- Adjacent to the fluidized-bed gasifier 1, a sorting device 7 and a bucket conveyor 8 are provided.
- the gas, gas, and gas generated in the fluidized gasifier 1 are supplied to the subsequent rotary melting furnace 9.
- a primary combustion chamber 10, a secondary combustion chamber 11, and a slag separation section 12 are formed inside the rotary melting furnace 9.
- Reference numeral 13 denotes a granulation trough
- reference numeral 14 denotes a slag conveyor.
- a waste
- f empty
- 1 sand
- j incombustible
- g generated gas
- d slag
- m circulating water
- h flue gas.
- the waste a is subjected to pretreatment such as crushing and sorting as required, and is then quantitatively supplied to the fluidized-bed gasification furnace 1 by a screw-type ⁇ supply device 2.
- the air for primary combustion: f is supplied to the air chamber 6 of the gasification furnace 1 and fluidizes the sand 1 filled on the dispersion plate by blowing upward from the air dispersion plate 5.
- the sand used as the fluid medium is silica sand.
- the waste a supplied above the fluidized debris falls into the fluidized bed and is kept in a fluidized bed maintained at 600 ⁇ 50 ° C, preferably at 600 ⁇ 30 ° C. When it comes into contact with the primary combustion air f, it is quickly pyrolyzed to gas.
- a mixture of incombustibles j and sand 1 is continuously or intermittently discharged from the bottom of the gasifier 1.
- the large-sized incombustible material j is separated and removed by a separation device 7 made of trommel or the like.
- Incombustibles include metals such as iron, copper, and aluminum, but since the furnace has a reducing atmosphere, they can be recovered in a clean state that is not oxidized and sanded. This is an extremely important technology for recycling useful metals.
- the sand 1 from which coarse incombustibles j have been removed is transported upward by a bucket conveyor 8 and returned to the gasifier 1 ⁇ again.
- the waste a put into the gasifier is quickly converted into gas, tar, and char by the pyrolysis gasification reaction.
- the char which is a carbide, is dispersed in the fluidized bed and fluidizes with the sand. With this, it is gradually miniaturized.
- the fines thus formed form a fluidized bed on the fluidized chips.
- the secondary combustion air f is blown just above the fluidized bed, and the second stage combustion is performed at a temperature within 725 ⁇ 75 ° C, while the miniaturized chamber is entrained in the gas upstream. Is done.
- the gas thus conveyed leaves the gasifier 1 together with the gas and tar, and is supplied to the primary combustion 3 ⁇ 4 10 of the revolving melting furnace 9, and is strongly swirled with the preheated tertiary combustion air: While mixing in the flow, it is ⁇ -burned at a high temperature of more than 130 ° C.
- the combustion is completed in the secondary combustion chamber 11, and the flue gas 1 is discharged from the upper part of the slag separation section 12. Due to this high-temperature combustion, the ash contained in the slag becomes slag mist.
- the slag d caught on the furnace wall of the primary combustion chamber 10 by the centrifugal force of the swirling flow travels along the furnace wall by the action of gravity to the secondary combustion chamber 11 and then to the secondary combustion chamber 11 From the slag separation section 1 2, and from the lower part of the slag separation section 12 toward the granulation trough 13.
- the water granulation trough 13 has a structure similar to running water on a slide.Thorough consideration must be taken to prevent a steam explosion from occurring even if a large lump of slag falls. It is arranged.
- the slag d flowing down on the granulated trough 13 comes into contact with the circulating water m flowing vigorously on the trough, is rapidly cooled, and becomes granulated slag in the form of red beans, and enters the slag conveyor 14. Next, it is carried out to the outside by the slag conveyor 14.
- the crushed slag d carried out by the slag conveyor 14 is finely crushed when transported by the conveyor, and becomes a grain of several mm.
- the high-temperature combustion in the rotary melting furnace 9 also has the purpose of decomposing dioxins and dioxin derivatives, and the total volume of the primary combustion chamber 10 and the secondary combustion chamber 11 is 0.5 sec as the gas residence time. It is designed to be above.
- the flue gas h exiting the rotary melting furnace 9 is released to the atmosphere after passing through a series of heat recovery devices such as a waste heat boiler, a economizer, and an air heater, and a dust removal device.
- the combustion chamber of the rotary melting furnace 9 was started Oil burner is installed.
- FIG. 2 is a diagram showing the proportion of various products according to the processing temperature when the waste is pyrolyzed using the gasification furnace shown in FIG. According to the second
- a fluidized bed gasifier and a melting furnace are combined, and the secondary combustion is performed in the fluidized waste part of the gasification furnace and the secondary combustion is performed in the freeboard part.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Incineration Of Waste (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69724617T DE69724617T2 (de) | 1996-06-25 | 1997-06-25 | Schmelzverfahren für die vergasung von festem abfall |
EP97928458A EP0908672B1 (en) | 1996-06-25 | 1997-06-25 | Methods for fusion treating a solid waste for gasification |
US09/202,913 US6168425B1 (en) | 1996-06-25 | 1997-06-25 | Method for fusion treating a solid waste for gasification |
JP50268798A JP4076233B2 (ja) | 1996-06-25 | 1997-06-25 | 固形廃棄物のガス化溶融処理方法及び装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/184013 | 1996-06-25 | ||
JP18401396 | 1996-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997049953A1 true WO1997049953A1 (fr) | 1997-12-31 |
Family
ID=16145813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/002191 WO1997049953A1 (fr) | 1996-06-25 | 1997-06-25 | Procedes pour le traitement par fusion de dechets solides en vue de leur gazeification |
Country Status (6)
Country | Link |
---|---|
US (1) | US6168425B1 (ja) |
EP (1) | EP0908672B1 (ja) |
JP (1) | JP4076233B2 (ja) |
CN (1) | CN1133040C (ja) |
DE (1) | DE69724617T2 (ja) |
WO (1) | WO1997049953A1 (ja) |
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JP2012512282A (ja) * | 2008-12-19 | 2012-05-31 | エナーケム,インコーポレイテッド | バイオマスの制御酸化による合成ガスの製造 |
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JP2012512282A (ja) * | 2008-12-19 | 2012-05-31 | エナーケム,インコーポレイテッド | バイオマスの制御酸化による合成ガスの製造 |
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CN104501171A (zh) * | 2014-12-24 | 2015-04-08 | 山东华源锅炉有限公司 | 垃圾衍生燃料(rdf)热解气化系统 |
JP2016161258A (ja) * | 2015-03-04 | 2016-09-05 | 株式会社神鋼環境ソリューション | 廃棄物処理方法および廃棄物処理装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1223715A (zh) | 1999-07-21 |
EP0908672A4 (en) | 2000-02-23 |
CN1133040C (zh) | 2003-12-31 |
DE69724617D1 (de) | 2003-10-09 |
EP0908672A1 (en) | 1999-04-14 |
EP0908672B1 (en) | 2003-09-03 |
US6168425B1 (en) | 2001-01-02 |
DE69724617T2 (de) | 2004-08-12 |
JP4076233B2 (ja) | 2008-04-16 |
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