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1. 发明公开

EP2235440A2 METHOD OF CONTROLLING A PROCESS OF GENERATING POWER BY OXYFUEL COMBUSTION 有权
标题翻译：方法用于控制过程用于产生能量BY氧燃料燃烧
公开(公告)号：EP2235440A2
公开(公告)日：2010-10-06
申请号：EP08863429.0
申请日：2008-12-19
申请人： Foster Wheeler Energy Corporation
发明人： SELTZER, Andrew , FAN, Zhen , HACK, Horst , ROBERTSON, Archibald
IPC分类号： F23C9/00 , F23L7/00
CPC分类号： F23C9/003 , F23C2202/30 , F23C2202/50 , F23L7/007 , F23L2900/07005 , F23L2900/07006 , F23L2900/07007 , Y02E20/322 , Y02E20/344
摘要： 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.
摘要翻译：控制通过燃烧含碳燃料与基本上纯净的氧气中与锅炉的动力设备中产生电力的过程的方法。在满负载条件下，该方法包括将第一碳质燃料进料流引入炉中，将第一基本上纯的氧气进料流引入所述炉中与氧燃烧第一含碳燃料原料流，和再循环的废气的一部分从炉中以第一再循环流率到炉中排出，以形成与所述第一基本纯的氧气进料流一起，将具有预定平均氧含量，从而排出废气从炉中在第一放电的第一入口气体流流量。在第二负荷条件下，对应于至多90％的负载，该方法包括将第二含碳燃料原料流引入炉中，引入第二基本上纯的氧气进料流引入所述炉中与氧燃烧第二含碳燃料原料流，和再循环以第二再循环流率到炉从炉中排出的废气的一部分，以形成，连同第二基本上纯的氧气进料流，第二入口气体流，以便从炉排出的废气以第二排放流率，和控制所述第二再循环流率从第一再循环流率到提供第二排放流率成基本上高达所述第一排放流率的值。

2. 发明公开

EP2084371A2 METHOD OF AND APPARATUS FOR CO2 CAPTURE IN OXY-COMBUSTION 审中-公开
标题翻译：方法和装置CO2在氧气燃烧截获
公开(公告)号：EP2084371A2
公开(公告)日：2009-08-05
申请号：EP07826829.9
申请日：2007-10-23
申请人： Foster Wheeler Energy Corporation
发明人： FAN, Zhen , SELTZER, Andrew
IPC分类号： F01K21/04
CPC分类号： F23J15/02 , B01D53/002 , B01D53/0462 , B01D2253/102 , B01D2253/108 , B01D2257/504 , B01D2259/402 , F23J15/06 , F23J2215/50 , F23J2900/15061 , F23L2900/07001 , Y02C10/06 , Y02C10/08 , Y02E20/322 , Y02E20/326 , Y02E20/344 , Y02E20/363
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.

3. 发明公开

EP2179219A2 METHOD OF AND A PLANT FOR COMBUSTING CARBONACEOUS FUEL BY USING A SOLID OXYGEN CARRIER 审中-公开
标题翻译：方法和系统用于燃烧碳燃料使用固态氧载体
公开(公告)号：EP2179219A2
公开(公告)日：2010-04-28
申请号：EP08763309.5
申请日：2008-06-12
申请人： Foster Wheeler Energy Corporation
发明人： FAN, Zhen , HACK, Horst , ROBERTSON, Archibald , SELTZER, Andrew
IPC分类号： F23C10/18 , F23G5/30 , B01D53/12 , B01J8/26 , B01J19/00 , B01J20/02 , C01B13/02
CPC分类号： F23C10/18 , B01D2253/112 , B01J19/00 , B01J20/06 , C01B13/0262 , C01B2210/0046 , F23G5/30 , F23G5/32 , Y02E20/344
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 fludizing 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.

4. 发明授权

EP2300692B1 OXYFUEL COMBUSTING BOILER SYSTEM AND A METHOD OF GENERATING POWER BY USING THE BOILER SYSTEM 有权
标题翻译：富氧燃烧锅炉的系统和方法产生能量BY利用锅炉系统
公开(公告)号：EP2300692B1
公开(公告)日：2011-11-16
申请号：EP09735086.2
申请日：2009-04-21
申请人： Foster Wheeler Energy Corporation
发明人： HACK, Horst , SELTZER, Andrew , FAN, Zhen , ROBERTSON, Archibald , ERIKSSON, Timo , SIPPU, Ossi
IPC分类号： F01K7/24 , F01K7/38
CPC分类号： F22B1/02 , F01K7/24 , F01K7/38 , F01K13/00 , Y02E20/12 , Y02E20/344
摘要： Carbonaceous fuel is combusted with an oxidant gas in a furnace of a boiler system to generate power. Oxidant gas is fed into the furnace for combusting the fuel to produce exhaust gas, the exhaust gas is discharged from the furnace via an exhaust gas channel, a stream of feedwater is conveyed from a final economizer arranged in the exhaust gas channel to evaporating and superheating heat exchange surfaces arranged in the furnace and in the exhaust gas channel for converting the feedwater to superheated steam, the superheated steam is converted in a high-pressure steam turbine for generating power, a first portion of steam is extracted from the high-pressure steam turbine for preheating the feedwater, a second portion of steam is conveyed from the high-pressure steam turbine to reheating heat exchange surfaces arranged in the exhaust gas channel for generating reheated steam, and the reheated steam is expanded in an intermediate pressure steam turbine for generating power. The oxidant gas can be a mixture of substantially pure oxygen and recycled exhaust gas, and the ratio of the first and second portions of steam can be controlled to obtain a desired flue gas temperature in the exhaust gas channel downstream of the final economizer.

5. 发明公开

EP2300692A2 OXYFUEL COMBUSTING BOILER SYSTEM AND A METHOD OF GENERATING POWER BY USING THE BOILER SYSTEM 有权
标题翻译：燃油燃烧锅炉系统及使用锅炉系统发电的方法
公开(公告)号：EP2300692A2
公开(公告)日：2011-03-30
申请号：EP09735086.2
申请日：2009-04-21
申请人： Foster Wheeler Energy Corporation
发明人： HACK, Horst , SELTZER, Andrew , FAN, Zhen , ROBERTSON, Archibald , ERIKSSON, Timo , SIPPU, Ossi
IPC分类号： F01K7/24 , F01K7/38
CPC分类号： F22B1/02 , F01K7/24 , F01K7/38 , F01K13/00 , Y02E20/12 , Y02E20/344
摘要： Carbonaceous fuel is combusted with an oxidant gas in a furnace of a boiler system to generate power. Oxidant gas is fed into the furnace for combusting the fuel to produce exhaust gas, the exhaust gas is discharged from the furnace via an exhaust gas channel, a stream of feedwater is conveyed from a final economizer arranged in the exhaust gas channel to evaporating and superheating heat exchange surfaces arranged in the furnace and in the exhaust gas channel for converting the feedwater to superheated steam, the superheated steam is converted in a high-pressure steam turbine for generating power, a first portion of steam is extracted from the high-pressure steam turbine for preheating the feedwater, a second portion of steam is conveyed from the high-pressure steam turbine to reheating heat exchange surfaces arranged in the exhaust gas channel for generating reheated steam, and the reheated steam is expanded in an intermediate pressure steam turbine for generating power. The oxidant gas can be a mixture of substantially pure oxygen and recycled exhaust gas, and the ratio of the first and second portions of steam can be controlled to obtain a desired flue gas temperature in the exhaust gas channel downstream of the final economizer.
摘要翻译：含碳燃料在锅炉系统的炉中与氧化剂气体一起燃烧发电。氧化剂气体被供给到炉内以燃烧燃料以产生废气，废气通过废气通道从炉中排出，供给水流从布置在废气通道中的最终节能器被输送到蒸发和过热设置在炉内和排气通道中的热交换表面，用于将给水转化成过热蒸汽，过热蒸汽在高压蒸汽轮机中转化以发电，第一部分蒸汽从高压蒸汽中提取用于预热给水的涡轮机，第二部分蒸汽从高压蒸汽涡轮机传送到再加热布置在排气通道中的热交换表面以产生再热蒸汽，并且再热蒸汽在中压蒸汽涡轮机中膨胀以产生功率。氧化剂气体可以是基本纯氧和再循环排气的混合物，并且可以控制第一和第二部分蒸汽的比例以获得最终节能器下游的排气通道中的期望的排气温度。

6. 发明公开

EP2162680A2 METHOD OF AND POWER PLANT FOR GENERATING POWER BY OXYFUEL COMBUSTION 审中-公开
标题翻译：的方法和设备用于发电BY富氧BURNS
公开(公告)号：EP2162680A2
公开(公告)日：2010-03-17
申请号：EP08763167.7
申请日：2008-06-03
申请人： Foster Wheeler Energy Corporation
发明人： FAN, Zhen , HACK, Horst , SELTZER, Andrew
IPC分类号： F23J15/06 , F23L7/00 , F23N3/00
CPC分类号： F23L7/007 , B01D53/002 , B01D53/62 , B01D2257/504 , F01K7/16 , F23J15/06 , F23J2900/15061 , F23L2900/07001 , F23L2900/07003 , F23N3/002 , Y02A50/2342 , Y02C10/04 , Y02E20/322 , Y02E20/326 , Y02E20/328 , Y02E20/344 , Y02E20/363
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.

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