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    • 3. 发明授权
    • Oxyfuel combustion boiler plant and operation method of oxyfuel combustion boiler plant
    • 氧燃烧锅炉厂和氧燃烧锅炉厂的运行方法
    • US08534236B2
    • 2013-09-17
    • US12893711
    • 2010-09-29
    • Masayuki TaniguchiTsuyoshi ShibataYoshiharu Hayashi
    • Masayuki TaniguchiTsuyoshi ShibataYoshiharu Hayashi
    • F23B80/02
    • F23C9/003F23C2202/10F23C2900/06041F23J2215/50F23L7/007F23L2900/07001F23L2900/07005F23L2900/07006F25J3/04533F25J2215/02F25J2245/40F25J2245/42F25J2260/80Y02E20/322Y02E20/344
    • An oxyfuel combustion boiler plant comprising: a boiler having an air separation unit for manufacturing oxygen by separating nitrogen from air, a burner for burning the oxygen supplied from the air separation unit and pulverized coal, and a primary system pipe for supplying the pulverized coal to the burner, exhaust gas recirculation system pipe for supplying combustion exhaust gas discharged from the boiler to the primary system pipe, a carbon dioxide capture unit for capturing carbon dioxide in the exhaust gas discharged from the boiler, the oxyfuel combustion boiler plant is further comprising: an oxygen buffer tank disposed on a downstream side of the air separation unit; an oxygen supply pipe for supplying oxygen to the primary system pipe of the burner from the oxygen buffer tank; and a nitrogen supply pipe for supplying a part of nitrogen generated from the air separation unit or an air supply pipe for supplying air from outside which is connected to the oxygen supply pipe on a downstream side of the oxygen buffer tank and on an upstream side of a junction of the primary system pipe.
    • 一种氧燃烧锅炉设备,包括:锅炉,具有用于通过从空气中分离氮气来制造氧气的空气分离单元,用于燃烧从空气分离单元和粉煤供应的氧气的燃烧器,以及用于将粉煤供应到主体系统管 所述燃烧器,用于从所述锅炉向所述主系统管排出的燃烧废气的排气再循环系统管,用于捕获从所述锅炉排出的废气中的二氧化碳的二氧化碳捕获单元,所述氧燃料燃烧锅炉设备还包括: 设置在所述空气分离单元的下游侧的氧缓冲罐; 用于从氧气缓冲罐向燃烧器的主系统管供氧的供氧管; 以及氮气供给管,其用于供给来自所述空气分离单元的氮气的一部分或用于从外部供给空气的空气供给管,所述空气供给管与所述氧气缓冲罐的下游侧的氧供给管连接,并且在所述供气管的上游侧 主系统管道的接头。
    • 4. 发明授权
    • Oxyfuel combustion boiler plant
    • 氧气燃烧锅炉厂
    • US08578868B2
    • 2013-11-12
    • US12893733
    • 2010-09-29
    • Masayuki TaniguchiTsuyoshi ShibataYoshiharu Hayashi
    • Masayuki TaniguchiTsuyoshi ShibataYoshiharu Hayashi
    • F23B70/00F23B80/02F23C9/00F23J11/00F23J15/00
    • F23L7/007F23C9/003F23C2202/10F23C2900/06041F23D1/00F23J2215/50F23L2900/07001F23L2900/07005Y02E20/322Y02E20/344
    • An oxyfuel combustion boiler plant comprising: an air separation unit for manufacturing oxygen by separating nitrogen from air, a boiler having a burner for burning the oxygen supplied from the air separation unit and pulverized coal, and a primary system pipe for supplying the pulverized coal to the burner, an exhaust gas recirculation system pipe for supplying combustion exhaust gas discharged from the boiler to the primary system pipe, and a carbon dioxide capture unit for capturing carbon dioxide in the exhaust gas discharged from the boiler, the oxyfuel combustion boiler plant is further comprising: an oxygen supply pipe for supplying the oxygen manufactured by the air separation unit to the primary system pipe in the burner, and a pipe for supplying the combustion exhaust gas discharged from the boiler to the oxygen supply pipe, wherein an injection port of the oxygen supply pipe is disposed on an upstream side of an injection portion of the burner.
    • 一种氧燃料燃烧锅炉设备,包括:空气分离单元,用于通过从空气中分离氮气来制造氧气,具有用于燃烧从空气分离单元和粉煤供应的氧气的燃烧器的锅炉,以及用于将粉煤供应到 燃烧器,用于将从锅炉排出的燃烧废气排放到主系统管的排气再循环系统管,以及用于捕获从锅炉排出的废气中的二氧化碳的二氧化碳捕获单元,氧燃料燃烧锅炉设备 包括:用于将由空气分离单元制造的氧气供应到燃烧器中的主系统管的供氧管,以及用于将从锅炉排出的燃烧废气供应到氧气供应管的管,其中, 供氧管设置在燃烧器的喷射部分的上游侧。
    • 9. 发明授权
    • Dust coal boiler, dust coal combustion method, dust coal fuel thermal power generation system, and waste gas purification system for dust coal boiler
    • 粉尘煤锅炉,粉尘煤燃烧法,粉煤燃料热发电系统,粉尘煤锅炉废气净化系统
    • US08961170B2
    • 2015-02-24
    • US12600221
    • 2008-05-14
    • Hisayuki OritaMasayuki TaniguchiAkihito OriiYuki KamikawaHirofumi Okazaki
    • Hisayuki OritaMasayuki TaniguchiAkihito OriiYuki KamikawaHirofumi Okazaki
    • F23D1/00F23C9/00F23J15/00F23L7/00
    • F23C9/003F23D1/00F23J15/006F23J2215/60F23L7/002
    • A pulverized coal thermal power generation system that significantly reduces the amount of NOx emissions from a boiler and does not require a denitration unit is provided. When a denitration unit is not used, performance to remove mercury from a boiler waste gas is reduced. A waste gas purification system for a pulverized coal boiler, that compensates for this is provided.A pulverized coal boiler having a furnace for burning pulverized coal, burners for supplying pulverized coal and air used for combustion into the furnace so as to burn the pulverized coal in an insufficient air state and after-air ports provided on the downstream side of the burners for supplying air used for perfect combustion characterized in that, an air ratio in the furnace is 1.05 to 1.14, and the residence time of a combustion gas from the burner disposed on the uppermost stage to a main after-air port is 1.1 to 3.3 seconds. Preferably, water is mixed in advance with the air supplied from the after-air port so as to increase the specific heat. Furthermore, pulverized coal carrying air in the burner and a part of air used for combustion are mixed together in advance before they are jetted into the furnace.A waste gas purification system having a pulverized coal boiler, an air heater disposed downstream of the pulverized coal boiler for exchanging heat with a boiler waste gas to heat air used for combustion in the pulverized coal boiler, a dust removing unit, and a desulfurizing unit characterized in that, at least one of a halogen gas supply unit, a catalyst unit for oxidizing a mercury gas, and a mercury adsorbent blowing device is provided so as to oxidize mercury included in the waste gas.
    • 提供了一种粉煤发电系统,其显着地减少了来自锅炉的NOx排放量并且不需要脱硝装置。 当不使用脱硝装置时,从锅炉废气中除去汞的性能降低。 提供了一种用于粉煤锅炉的废气净化系统,用于补偿这一点。 一种粉煤锅炉,其具有用于燃烧粉煤的炉,用于将粉煤供应的燃烧器和用于燃烧的空气进入炉中,以便在不充分的空气状态下燃烧粉煤,并且设置在燃烧器的下游侧的后空气口 用于提供用于完全燃烧的空气,其特征在于,炉中的空气比为1.05至1.14,并且来自设置在最上层的燃烧器的燃烧气体的停留时间为1.1至3.3秒 。 优选地,预先将水与从后空气供给的空气混合,以增加比热。 此外,在燃烧器内携带空气的粉煤和用于燃烧的空气的一部分在喷射到炉中之前预先混合在一起。 一种具有粉煤锅炉的废气净化系统,设置在粉煤锅炉下游的空气加热器,用于与锅炉废气进行热交换,以加热用于粉煤锅炉中的燃烧的空气,除尘单元和脱硫单元 其特征在于,提供卤素气体供给单元,氧化汞气体的催化剂单元和汞吸收剂吹送装置中的至少一种,以氧化废气中所含的汞。