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11. 发明专利

ES2377909T3 Sistema de caldera de combustión oxi-gas y procedimiento de generación de energía con el uso de dicho sistema 未知
公开(公告)号：ES2377909T3
公开(公告)日：2012-04-03
申请号：ES09735086
申请日：2009-04-21
申请人： FOSTER WHEELER ENERGY CORP
发明人： HACK HORST , SELTZER ANDREW , FAN ZHEN , ROBERTSON ARCHIBALD , ERIKSSON TIMO , SIPPU OSSI
IPC分类号： F01K7/24 , F01K7/38
摘要： Procedimiento para la generación de energía mediante la quema de combustible carbonáceo con un gas oxidante en un horno (14) de un sistema de caldera (10), el cual comprende los pasos de: (a) introducir en el horno combustible carbonáceo (16) a la velocidad de alimentación de combustible; (b) introducir en el horno gas oxidante (18) para quemar combustible a fin de producir gases de escape; (c) descargar los gases de escape del horno a través de un canal (20) para los gases de escape; (d) transportar una corriente de agua de alimentación a la velocidad de transporte de la misma desde un economizador final (54) dispuesto en el canal para gases de escape hasta unas superficies de intercambio térmico para evaporación (32) y recalentamiento (34), dispuestas en el horno y en el canal para gases de escape a fin de convertir el agua de alimentación en vapor recalentado; (e) expandir el vapor recalentado en una turbina (36) de vapor a presión elevada para generar energía; (f) extraer una primera parte del vapor de la turbina de vapor a presión elevada para precalentar el agua de alimentación; (g) transportar una segunda parte del vapor desde la turbina de vapor a presión elevada para recalentar unas superficies de intercambio térmico dispuestas en el canal para gases de escape a fin de generar vapor recalentado; y (h) expandir el vapor recalentado en una turbina (46) de vapor a presión intermedia para generar energía; caracterizado porque, en unas primeras condiciones de funcionamiento, el gas oxidante es una mezcla de oxígeno prácticamente puro y gases de escape reciclados, y porque la proporción entre las primeras y segundas partes del vapor se controla a fin de obtener la temperatura deseada de los gases de escape en el canal de dichos gases, aguas abajo del economizador final.

12. 发明专利

ZA201000072B METHOD OF AND POWER PLANT GENERATING POWER BY OXYFUEL COMBUSTION 未知
公开(公告)号：ZA201000072B
公开(公告)日：2011-04-28
申请号：ZA201000072
申请日：2010-01-05
申请人： FOSTER WHEELER ENERGY CORP
发明人： HACK HORST , SELTZER ANDREW , FAN ZHEN
摘要： A method of and a power plant for generating power by combusting carbonaceous fuel with substantially pure oxygen, and a method of modifying a process of generating power by combusting carbonaceous fuel from combusting the fuel with air to combusting the fuel with substantially pure oxygen. The methods include feeding substantially pure oxygen into a furnace for combusting fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water, recovering low-grade heat from the exhaust gas by using multiple exhaust gas coolers arranged in a downstream portion of the exhaust gas channel, wherein a first portion of the recovered low-grade heat is used for preheating feedwater; pressurizing a first portion of the exhaust gas in multiple exhaust gas compressors so as to produce liquid carbon dioxide, recycling a second portion of the exhaust gas to the furnace via an exhaust gas recycling channel, using a first portion of steam extracted from a steam turbine system to preheat feedwater, wherein the first portion of the recovered low-grade heat is more than 50% of the total amount of recovered low-grade heat, or larger than the first portion of the recovered low-grade heat in the air-fired process, allowing minimizing of the first portion of the extracted steam, and the expanding of a second portion of the extracted steam in at least one auxiliary steam turbine for driving at least one compressor or at least one pump of the power plant.

13. 发明专利

CA2667522A1 METHOD OF AND APPARATUS FOR CO2 CAPTURE IN OXY-COMBUSTION 未知
公开(公告)号：CA2667522A1
公开(公告)日：2008-05-02
申请号：CA2667522
申请日：2007-10-23
申请人： FOSTER WHEELER ENERGY CORP
发明人： SELTZER ANDREW , FAN ZHEN
IPC分类号： F01K21/04 , C01B32/50
摘要： A method of and an apparatus for capturing CO2 from flue gas emanating fr om a carbonaceous fuel combusting power plant, which includes a source of ox ygen and a combustion chamber for combusting the fuel with oxygen and thereb y producing flue gas that includes CO2, water and excess oxygen as its main components. At least a portion of the flue gas is compressed to a pressure h igher than about sixty bar, the compressed flue gas is cooled in a primary C O2 separating unit for capturing a first portion of the CO2 by condensing it to produce a liquid CO2 stream and a high pressure vent gas stream that inc ludes oxygen and excess CO2, the liquid CO2 stream is discharged from the po wer plant, and the high pressure vent gas stream is conducted to a secondary CO2 separating unit for capturing a second portion of the CO2 by adsorbing it to an adsorbing material.

14. 发明专利

AU2008259375B2 Method of and power plant for generating power by oxyfuel combustion 未知
公开(公告)号：AU2008259375B2
公开(公告)日：2011-03-17
申请号：AU2008259375
申请日：2008-06-03
申请人： FOSTER WHEELER ENERGY CORP
发明人： SELTZER ANDREW , HACK HORST , FAN ZHEN
IPC分类号： F23J15/06 , F23L7/00 , F23N3/00
摘要： A method of and a power plant for generating power by combusting carbonaceous fuel with substantially pure oxygen, and a method of modifying a process of generating power by combusting carbonaceous fuel from combusting the fuel with air to combusting the fuel with substantially pure oxygen. The methods include feeding substantially pure oxygen into a furnace for combusting fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water, recovering low-grade heat from the exhaust gas by using multiple exhaust gas coolers arranged in a downstream portion of the exhaust gas channel, wherein a first portion of the recovered low-grade heat is used for preheating feedwater; pressurizing a first portion of the exhaust gas in multiple exhaust gas compressors so as to produce liquid carbon dioxide, recycling a second portion of the exhaust gas to the furnace via an exhaust gas recycling channel, using a first portion of steam extracted from a steam turbine system to preheat feedwater, wherein the first portion of the recovered low-grade heat is more than 50% of the total amount of recovered low-grade heat, or larger than the first portion of the recovered low-grade heat in the air-fired process, allowing minimizing of the first portion of the extracted steam, and the expanding of a second portion of the extracted steam in at least one auxiliary steam turbine for driving at least one compressor or at least one pump of the power plant.

15. 发明专利

AU2008278730A1 Method of and a plant for combusting carbonaceous fuel by using a solid oxygen carrier 未知
公开(公告)号：AU2008278730A1
公开(公告)日：2009-01-29
申请号：AU2008278730
申请日：2008-06-12
申请人： FOSTER WHEELER ENERGY CORP
发明人： FAN ZHEN , SELTZER ANDREW , ROBERTSON ARCHIBALD , HACK HORST
IPC分类号： F23C10/18 , B01D53/12 , B01J8/26 , B01J19/00 , B01J20/02 , C01B13/02 , F23G5/30
摘要： A method of and a plant for combusting carbonaceous fuel, the method including the steps of introducing particulate oxygen selective sorbent, such as a perovskite type material, into an adsorption reactor of the combustion plant to form a first particle bed in the adsorption reactor, fluidizing the first particle bed by an oxygen-containing first fluidizing gas to adsorb oxygen from the fluidizing gas to the sorbent, conveying oxygen-rich sorbent from the adsorption reactor to a combustion reactor of the combustion plant to form a second particle bed in the combustion reactor, fluidizing the second particle bed by an oxygen-deficient second fluidizing gas to desorb oxygen from the sorbent, so as to produce free oxygen gas, and introducing carbonaceous fuel into the combustion reactor to oxidize the fuel with the free oxygen gas.

16. 发明专利

AU2008259375A1 Method of and power plant for generating power by oxyfuel combustion 未知
公开(公告)号：AU2008259375A1
公开(公告)日：2008-12-11
申请号：AU2008259375
申请日：2008-06-03
申请人： FOSTER WHEELER ENERGY CORP
发明人： SELTZER ANDREW , HACK HORST , FAN ZHEN
IPC分类号： F23J15/06 , F23L7/00 , F23N3/00
摘要： A method of and a power plant for generating power by combusting carbonaceous fuel with substantially pure oxygen, and a method of modifying a process of generating power by combusting carbonaceous fuel from combusting the fuel with air to combusting the fuel with substantially pure oxygen. The methods include feeding substantially pure oxygen into a furnace for combusting fuel with the oxygen to produce exhaust gas including mainly carbon dioxide and water, recovering low-grade heat from the exhaust gas by using multiple exhaust gas coolers arranged in a downstream portion of the exhaust gas channel, wherein a first portion of the recovered low-grade heat is used for preheating feedwater; pressurizing a first portion of the exhaust gas in multiple exhaust gas compressors so as to produce liquid carbon dioxide, recycling a second portion of the exhaust gas to the furnace via an exhaust gas recycling channel, using a first portion of steam extracted from a steam turbine system to preheat feedwater, wherein the first portion of the recovered low-grade heat is more than 50% of the total amount of recovered low-grade heat, or larger than the first portion of the recovered low-grade heat in the air-fired process, allowing minimizing of the first portion of the extracted steam, and the expanding of a second portion of the extracted steam in at least one auxiliary steam turbine for driving at least one compressor or at least one pump of the power plant.

17. 发明专利

AT533924T 未知
公开(公告)号：AT533924T
公开(公告)日：2011-12-15
申请号：AT09735086
申请日：2009-04-21
申请人： FOSTER WHEELER ENERGY CORP
发明人： HACK HORST , SELTZER ANDREW , FAN ZHEN , ROBERTSON ARCHIBALD , ERIKSSON TIMO , SIPPU OSSI
IPC分类号： F01K7/24 , F01K7/38

18. 发明专利

ZA201007795B OXYFUEL COMBUSTING BOILER SYSTEM AND A METHOD OF GENERATING POWER BY USING THE BOILER SYSTEM 未知
公开(公告)号：ZA201007795B
公开(公告)日：2011-07-27
申请号：ZA201007795
申请日：2010-11-01
申请人： FOSTER WHEELER ENERGY CORP
发明人： SIPPU OSSI , ERIKSSON TIMO , ROBERTSON ARCHIBALD , HACK HORST , SELTZER ANDREW , FAN ZHEN

19. 发明专利

AU2007310516A1 Method of and apparatus for CO2 capture in oxy-combustion 未知
公开(公告)号：AU2007310516A1
公开(公告)日：2008-05-02
申请号：AU2007310516
申请日：2007-10-23
申请人： FOSTER WHEELER ENERGY CORP
发明人： SELTZER ANDREW , FAN ZHEN
IPC分类号： F01K21/04 , C01B32/50
摘要： A method of and an apparatus for capturing CO2 from flue gas emanating from a carbonaceous fuel combusting power plant, which includes a source of oxygen and a combustion chamber for combusting the fuel with oxygen and thereby producing flue gas that includes CO2, water and excess oxygen as its main components. At least a portion of the flue gas is compressed to a pressure higher than about sixty bar, the compressed flue gas is cooled in a primary CO2 separating unit for capturing a first portion of the CO2 by condensing it to produce a liquid CO2 stream and a high pressure vent gas stream that includes oxygen and excess CO2, the liquid CO2 stream is discharged from the power plant, and the high pressure vent gas stream is conducted to a secondary CO2 separating unit for capturing a second portion of the CO2 by adsorbing it to an adsorbing material.

20. 发明专利

ZA201004146B METHOD OF CONTROLLING A PROCESS OF GENERATING POWER BY OXYFUEL COMBUSTION 未知
公开(公告)号：ZA201004146B
公开(公告)日：2011-05-25
申请号：ZA201004146
申请日：2010-06-10
申请人： FOSTER WHEELER ENERGY CORP
发明人： ROBERTSON ARCHIBALD , HACK HORST , SELTZER ANDREW , FAN ZHEN
摘要： A method of controlling a process of generating power in a power plant with a boiler by combusting carbonaceous fuel with substantially pure oxygen. At full load conditions, the method includes introducing a first carbonaceous fuel feed stream into a furnace, introducing a first substantially pure oxygen feed stream into the furnace for combusting the first carbonaceous fuel feed stream with the oxygen, and recirculating a portion of the exhaust gas discharged from the furnace at a first recirculation flow rate to the furnace, to form, together with the first substantially pure oxygen feed stream, a first inlet gas stream having a predetermined average oxygen content, thereby discharging exhaust gas from the furnace at a first discharge flow rate. In second load conditions, corresponding to at most 90% load, the method includes introducing a second carbonaceous fuel feed stream into the furnace, introducing a second substantially pure oxygen feed stream into the furnace for combusting the second carbonaceous fuel feed stream with the oxygen, and recirculating a portion of the exhaust gas discharged from the furnace at a second recirculation flow rate to the furnace, to form, together with the second substantially pure oxygen feed stream, a second inlet gas stream, so as to discharge exhaust gas from the furnace at a second discharge flow rate, and controlling the second recirculation flow rate to be from the first recirculation flow rate to a value providing the second discharge flow rate to be substantially as high as the first discharge flow rate.

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