Power plant with CO2 capture and compression
    1.
    发明授权
    Power plant with CO2 capture and compression 有权
    具有CO2捕获和压缩的发电厂

    公开(公告)号:US08959884B2

    公开(公告)日:2015-02-24

    申请号:US13155079

    申请日:2011-06-07

    IPC分类号: F01K23/00 F01K23/10

    摘要: CO2 compression is a main step in carbon capture and storage, which is essential to control global warming. CO2 compressors are powered by electric motors, which increase operational flexibility but require much energy leading to additional expenses, power and efficiency losses. A method is provided for optimized operation of a plant including a power generation unit with a CO2 capture system and compressor with minimum losses during normal operation, allowing flexible part load. The method allows steam from the power unit to drive a steam turbine, which drives the CO2 compressor via an engaged overrunning clutch if a sufficient amount of steam is available from the power unit, and to drive it by the generator, which is used as motor when insufficient steam is available from the power unit. When no or insufficient steam is available the clutch is disengaged and the steam turbine may be at standstill or idling.

    摘要翻译: 二氧化碳压缩是碳捕获和储存的主要步骤,对于控制全球变暖至关重要。 二氧化碳压缩机由电动机驱动,这增加了操作灵活性,但需要很多能量,导致额外的费用,功率和效率损失。 提供一种用于工厂的优化操作的方法,包括具有CO 2捕获系统的发电单元和在正常操作期间具有最小损耗的压缩机,允许柔性部分负载。 该方法允许来自动力单元的蒸汽驱动蒸汽涡轮机,其通过接合的超速离合器驱动二氧化碳压缩机,如果从动力单元获得足够量的蒸汽,并且由用作电动机的发电机驱动它 当电源单元没有足够的蒸汽时。 当没有或没有足够的蒸汽可用时,离合器被分离,并且蒸汽轮机可能处于静止或空转状态。

    Power plant with CO2 capture
    2.
    发明授权
    Power plant with CO2 capture 有权
    电厂采集二氧化碳

    公开(公告)号:US08408006B2

    公开(公告)日:2013-04-02

    申请号:US13161325

    申请日:2011-06-15

    IPC分类号: F02C3/34 F02C6/18 F01K23/10

    摘要: A method is provided for operating a combined cycle power plant including a CO2 capture system and flue gas recirculation system. The method includes controlling a flue gas recirculation rate and a re-cooling temperature of the recirculated flue gases, depending on load, to optimize the overall plant efficiency including the CO2 capture system. Also provided is a combined cycle power plant including a CO2 capture system and flue gas recirculation system. The plant being configured to carry out a method in which a flue gas recirculation rate and a re-cooling temperature of recirculated flue gases is controlled depending on load to optimize the overall plant efficiency including the CO2 capture system.

    摘要翻译: 提供了一种用于操作包括CO 2捕获系统和烟道气再循环系统的联合循环发电厂的方法。 该方法包括根据负载控制烟道气再循环速率和再循环烟道气的再冷却温度,以优化包括CO 2捕集系统在内的整个设备效率。 还提供了包括CO 2捕集系统和烟道气再循环系统的联合循环发电厂。 该设备被配置为执行一种方法,其中根据负载控制再循环烟道气的烟道气再循环速率和再冷却温度,以优化整个设备效率,包括CO 2捕获系统。

    Power plant with CO2 capture
    3.
    发明授权
    Power plant with CO2 capture 失效
    电厂采集二氧化碳

    公开(公告)号:US08365537B2

    公开(公告)日:2013-02-05

    申请号:US13157897

    申请日:2011-06-10

    IPC分类号: F02C3/34 F02C6/18

    摘要: A method is provided for operating a combined cycle power plant having at least one gas turbine, a heat recovery steam generator (HSRG), a steam turbine and a CO2 capture system. The method includes recirculating a first partial flow of flue gases from the HRSG. The method also includes capturing CO2 from a second partial flow of flue gases from the HRSG; and operating a supplementary firing to increase the net power output of the plant and to at least partly compensate the power consumption of the CO2 capture system. A combined cycle power plant is also provided. The plant includes at least one gas turbine, at least one heat recovery steam generator, at least one steam turbine at least one CO2 capture system, and flue gas recirculation. The plant also includes a low excess air supplementary firing.

    摘要翻译: 提供了一种用于操作具有至少一个燃气轮机,热回收蒸汽发生器(HSRG),蒸汽轮机和CO 2捕集系统的联合循环发电厂的方法。 该方法包括再循环来自HRSG的第一部分烟道气流。 该方法还包括从来自HRSG的第二部分烟道气流捕获CO 2; 并进行补充燃烧以提高工厂的净功率输出,并至少部分地补偿二氧化碳捕集系统的功率消耗。 还提供联合循环发电厂。 该设备包括至少一个燃气轮机,至少一个热回收蒸汽发生器,至少一个蒸汽轮机至少一个CO 2捕集系统和烟道气再循环。 该工厂还包括低空余量的辅助燃烧。

    Power plant with CO2 capture and compression
    4.
    发明授权
    Power plant with CO2 capture and compression 有权
    具有CO2捕获和压缩的发电厂

    公开(公告)号:US08321056B2

    公开(公告)日:2012-11-27

    申请号:US12834505

    申请日:2010-07-12

    IPC分类号: G05B13/00 B01D53/34 F01K17/00

    CPC分类号: F01K13/02 Y02E20/326

    摘要: A power plant frequency response characteristic is implemented by controlling the power consumption of a CO2 capture and compression system. A power reserve is provided for under-frequency events without deloading the plant to part load, by an operating method, in which the power consumption of the CO2 capture system is used to control the net output of the plant.

    摘要翻译: 通过控制二氧化碳捕获和压缩系统的功率消耗来实现发电厂的频率响应特性。 通过操作方法为低频事件提供动力储存,而不是通过操作方法将工厂卸载到部分负荷,其中使用CO 2捕集系统的功率消耗来控制设备的净输出。