[특허]Process for burning carbonaceous materials

Process for burning carbonaceous materials 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F22B-001/02
출원번호	US-0842359 (1977-10-14)
우선권정보	DE-2539546 (1975-09-05)
발명자 / 주소	Reh Lothar (Bergen-Enkheim DE) Hirsch Martin (Frankfurt am Main DE) Collin Per H. (Falun SE) Flink Sune N. (Vaesteraas SE)
출원인 / 주소	Metallgesellschaft Aktiengesellschaft (Frankfurt am Main DE 03)
인용정보	피인용 횟수 : 52 인용 특허 : 0

초록 ▼

Carbonaceous material, preferably coal or like finely divided solids with a mean particle diameter of 30 to 250 microns, is burned to produce steam in a fluid-bed furnace having a lower free space without internal fixtures and provided above this free space with internal cooling surfaces. A secondary-gas inlet introduces the secondary gas so that the volume ratio of fluidizing gas to secondary gas ranges from 1:20 to 2:1 at a location above the fluidizing-gas and fuel inlets but below the internal cooling surfaces, the gas velocity of the several gases being adjusted so that the mean suspension density of the solids above the secondary-gas inlet is 15 to 100 kg/m3. Approximately stoidiometric conditions are maintained with respect to the oxygen in the gases introduced and the carbonaceous material and solids are recycled to the bed after being separated from the gases emanating therefrom.

대표청구항 ▼

A process for burning a carbonaceous material to provide steam which comprises the steps of: introducing carbonaceous material into a fluid bed in an upright reactor; fluidizing the carbonaceous material in said fluid bed with a primary fluidizing gas introduced at the bottom of said bed and a secondary gas introduced into said fluid bed at a level above that at which the primary gas is introduced and above the bottom of the fluid bed, at least the secondary gas containing oxygen; burning the carbonaceous material with the oxygen; maintaining the supply of carbonaceous material and oxygen to said fluid bed at distinct proportions; maintaining the volume ratio of fluidizing gas to secondary gas at substantially 1:20 to 2:1; controlling the velocity and the volume ratio of said gases to maintain the solids density above the location at which said secondary gas is introduced at substantially 15 to 100 kg/m3 and with said density decreasing continuously over substantially the entire height of the reactor; removing thermal energy from said fluid bed by disposing therein, at a level above the location at which said secondary gas is introduced, cooling surfaces in contact with the solids of said fluid bed; cooling said surfaces with water to produce steam; maintaining, below the level at which the secondary gas is introduced, a space substantially free of internal obstructions at which said carbonaceous material is introduced; separating solids from the gas effluent from said bed at the top thereof to collect solid particles; recycling said solid particles to said fluid bed at a lower portion thereof whereby said fluid bed and the means for separating and recycling said particles constitute a closed solids circuit; and removing excess solids from said circuit.

이 특허를 인용한 특허 (52)

Sheely Harold R. (Orleans MA) Miserlis Constantine D. (Arlington MA) Rosenblatt Ivan L. (Birmingham AL), Apparatus and method for recovery of constituents and heat from fluidized bed combustion.
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Eickvonder Wolfgang (Nmbrecht DEX) Passmann Norbert (Alfter-Heidgen DEX) Thomas Gerhard (Gummersbach DEX) Tummers Peter (Gummersbach DEX) Steven Hubert (Gummersbach DEX), Apparatus for burning carbonaceous material in a fluidized bed reactor.
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Sheely Harold R. (Orleans MA) Miserlis Constantine D. (Arlington MA) Rosenblatt Ivan L. (Birmingham AL), Apparatus for recovery of constituents and heat from fluidized bed combustion.
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Engstrm Folke (San Diego CA), Apparatus for separating solids from flue gases in a circulating fluidized bed reactor.
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Kulprathipanja, Sathit; Myers, Daniel N.; Palmas, Paolo, Apparatuses for controlling heat for rapid thermal processing of carbonaceous material and methods for the same.
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Virr Michael J. (Fairfield CT), Bubbling fluid bed boiler with recycle.
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Engstrm Folke (San Diego CA), Circulating fluidized bed boiler.
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Engstrm Folke (San Diego CA) Isaksson Juhani (Karhula FIX), Circulating fluidized bed reactor.
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Engstrm Folke (Kotka FIX) Henricson Kaj O. (Kotka FIX) Lundqvist Ragnar G. (Kotka FIX), Circulating fluidized bed reactor and a method of separating solid material from flue gases.
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Engstrom Folke (Karhula CA FIX) Sarkki Juha (San Diego CA), Circulating fluidized bed reactor temperature control.
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Alexander Kiplin C. ; Belin Felix ; Maryamchik Mikhail ; Walker David J., Circulating fluidized bed reactor with floored internal primary particle separator.
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Reh Lothar (Frankfurt am Main DEX) Graf Rolf (Friedrichsdorf DEX) Hirsch Martin (Friedrichsdorf DEX) Plass Ludolf (Kronberg DEX), Combined gas and steam turbine process.
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Kullendorff Anders N. (Askim SEX) Jansson Bjrn G. (Vstra Frlunda SEX) Olofsson Jan I. (Gteborg SEX), Controlling thermal transmission rate at a fast fluidized bed reactor.
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Morin, Jean-Xavier; Baglione, Daniel, Double wall extension.
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Strmberg Lars A. (Nykping SEX), Fast fluidized bed boiler and a method of controlling such a boiler.
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Stromberg, Lars A., Fast fluidized bed boiler and a method of controlling such a boiler.
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Korenberg Jakob (York PA), Fast fluidized bed reactor and method of operating the reactor.
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Urquhart William M. (Renfrew GB6), Fluidized bed combustion.
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Dietz David H. (Hampton NJ), Fluidized bed combustion system and method having a recycle heat exchanger with a non-mechanical solids control system.
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Dreuilhe, Jacques; Puff, Roger; Kita, Jean-Claude; Large, Jean-Francois, Fluidized bed compact boiler.
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Rawdon Albert H. (Shrewsbury MA), Fluidized bed heat generator and method of operation.
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Holm Ejler L. (Gistrup DKX) Clausen Jens C. (Storvorde DKX), Fluidized bed reactor.
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Holm Ejler L. (Gistrup DKX) Clausen Jens C. (Storvorde DKX), Fluidized bed reactor and process for the operation of a fluidized bed reactor.
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Morin Jean-Xavier,FRX, Fluidized bed reactor for heat treatment of waste.
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Beisswenger Hans (Mahwah NJ) Knoche Ronald (Frankfurt DEX) Frank Wolfgang (Eschborn DEX), Fluidized bed system.
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Strohmeyer ; Jr. Charles (Gladwyne PA), Gas and particle separation means for a steam generator circulating fluidized bed firing system.
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Korenberg Jakob (York PA), High turndown ratio fluidized bed reactor and method of operating the reactor.
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Beisswenger Hans (Montvale NJ) Frank Wolfgang P. (Eschborn NY DEX) Wechsler Alexander T. (Riverdale NY), Integral fluidized bed heat exchanger in an energy producing plant.
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Freel, Barry A.; Hopkins, Geoffrey D.; Stiles, Cameron A. F.; Torrens, R. Lee; Muller, Stefan, Liquid biomass heating system.
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Yang, Hairui; Zhang, Hai; Yue, Guangxi; Lv, Junfu; Liu, Qing; Zhang, Jiansheng, Low bed pressure drop circulating fluidized bed boiler and combustion process.
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Engstrm Folke (San Diego CA), Method and apparatus for controlling the operation of a fluidized bed reactor apparatus.
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Timo Hyppanen FI, Method and apparatus in a fluidized bed reactor.
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Li, Shiyuan; Liu, Jingzhang; Ren, Qiangqiang; Gao, Ming; Lv, Qinggang; Zhu, Jianguo; Li, Wei; Li, Haoyu; Na, Yongjie; Bao, Shaolin, Method for distributing gas for oxy-fuel combustion in circulating fluidized bed.
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Hakulin Bertel K. (Helsinki FIX) Nieminen Jorma J. (Varkaus FIX), Method for gasifying or combusting solid carbonaceous material.
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Beisswenger Hans (Mahwah NJ) Wechsler Alexander T. (Riverdale NY), Method for improving solids distribution in a circulating fluidized bed system.
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Doron Benjamin,ILX ; Goldman Daniel,ILX ; Yaffe Eli,ILX, Method of and means for producing combustible gases from low grade fuel.
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Siniakevith Boris (Lwow UAX) Khaskin Mark (Ashdod ILX) Goldman Daniel (Raanana ILX) Doron Benjamin (Jerusalem ILX) Bronicki Lucien Y. (Yavne ILX) Yaffe Eli (Savyon ILX), Method of and means for producing combustible gases from low grade fuel.
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Yamauchi Yasuhiro (Nagasaki JPX) Arakawa Yoshihisa (Tokyo JPX) Fujima Yukihisa (Nagasaki JPX) Takenaga Kiyomasa (Nagasaki JPX) Hino Hirokazu (Nagasaki JPX), Method of burning solid fuel by means of a fluidized bed.
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Beisswenger Hans (Bad Soden DEX) Daradimos Georg (Maintal DEX) Hirsch Martin (Friedrichsdorf DEX) Plass Ludolf (Kronberg DEX) Serbent Harry (Hanau DEX), Method of producing fuel gas and process heat fron carbonaceous materials.
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Baird, Lance Awender; Freel, Barry; Clarke, Doug; Morin, Gregory Joseph, Methods and apparatuses for thermally converting biomass.
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Tanca Michael C. ; Zak Mark S., Oil shale fluidized bed.
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Bertelsen Corey A. (Oakland CA), Process for burning retorted oil shale and improved combustor.
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Daradimos Georg (Rossbach DEX) Hirsch Martin (Friedrichsdorf DEX) Schnabel Wolfram (Idstein DEX), Process for generating heat and producing sponge iron.
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Wallman Per H. (Berkeley CA), Process for staged combustion of retorted carbon containing solids.
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Voetter Heinz (The Hague NLX) Darton Richard C. (The Hague NLX) Van Meurs Hubrecht C. A. (The Hague NLX) Krishna Rajamani (The Hague NLX), Process for the combustion of coke present on solid particles and for the production of recoverable heat from hydrocarbo.
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Sechrist, Paul A.; Bozzano, Andrea G., Processes for controlling afterburn in a reheater and for controlling loss of entrained solid particles in combustion product flue gas.
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Strohmeyer ; Jr. Charles (Gladwyne PA), Recirculating fluidized bed combustion system for a steam generator.
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Regan John W. (West Hartford CT), Reheat steam temperature control in a circulating fluidized bed steam generator.
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Bertelsen Corey A. (Oakland CA), Staged burning of retorted carbon-containing solids.
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Maintok Karl-Heinz (Oberhausen DEX), Steam generator with circulating atmosphere or pressurized turbulent layer firing, and method for control thereof.
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Freel, Barry A.; Graham, Robert G., Systems and methods for renewable fuel.
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Boulard, David; Graham, Robert G.; Freel, Barry A., Thermal extraction method and product.
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