Thermal integration of oxygen plants
    30.
    发明授权
    Thermal integration of oxygen plants 有权
    氧气植物的热积分

    公开(公告)号:US08065879B2

    公开(公告)日:2011-11-29

    申请号:US12171766

    申请日:2008-07-11

    摘要: A process for the integration of a cryogenic air separation plant and an oxy-combustion power plant is presented. This process includes producing a pressurized nitrogen stream and a pressurized oxygen stream, burning a fuel stream thereby generating a steam stream from a boiler feed water stream, wherein the stream is used for work expansion within the oxy-combustion power plant. This process also includes heating the pressurized nitrogen stream and the pressurized oxygen stream with a compressed air stream, thereby forming a heated pressurized nitrogen stream and a heated pressurized oxygen stream. This process also includes heating the heated pressurized nitrogen stream to form a hot pressurized nitrogen stream, work expanding the hot pressurized nitrogen stream to a lower pressure thereby forming a hot exhaust nitrogen stream and recovering energy, and heating the boiler feed water stream by indirect heat exchange with the hot exhaust nitrogen stream.

    摘要翻译: 提出了一种低温空气分离装置和氧燃动力装置整合的方法。 该方法包括产生加压氮气流和加压氧气流,燃烧燃料流,从而从锅炉给水流产生蒸汽流,其中该流用于氧燃烧发电厂内的工作膨胀。 该方法还包括用压缩空气流加热加压氮气流和加压氧气流,从而形成加热的加压氮气流和加热的加压氧气流。 该方法还包括加热加压的加压氮气流以形成热的加压氮气流,将热的加压氮气流扩展到较低的压力,从而形成热的排气氮气流并回收能量,并通过间接的加热来加热锅炉给水流 与热排气氮气流交换。