Method for providing refrigeration to a cryogenic rectification plant
    3.
    发明授权
    Method for providing refrigeration to a cryogenic rectification plant 有权
    向低温精馏装置提供制冷的方法

    公开(公告)号:US06543253B1

    公开(公告)日:2003-04-08

    申请号:US10153663

    申请日:2002-05-24

    Abstract: A method for providing refrigeration to a cryogenic rectification plant which enables the facile provision of varying amounts of refrigeration to the plant wherein a working fluid is pressurized in a recycle compressor, a first portion is at least partially condensed in a heat exchanger and passed into the plant, a second portion is cooled and then turboexpanded to generate refrigeration, the refrigeration bearing second portion passes refrigeration in the heat exchanger to the first portion to effect the condensation, and the resulting second portion is not passed into the cryogenic rectification plant but rather is returned to the recycle compressor.

    Abstract translation: 一种用于向低温精馏装置提供制冷的方法,其能够容易地向工厂提供不同数量的制冷,其中工作流体在循环压缩机中被加压,第一部分在热交换器中至少部分地冷凝并传递到 第二部分被冷却,然后涡轮膨胀以产生冷冻,制冷轴承第二部分将热交换器中的制冷剂传递到第一部分以实现冷凝,并且所得到的第二部分不被进入低温精馏装置,而是 返回到再循环压缩机。

    Method and apparatus for pressurized product production
    5.
    发明授权
    Method and apparatus for pressurized product production 有权
    用于加压产品生产的方法和装置

    公开(公告)号:US08397535B2

    公开(公告)日:2013-03-19

    申请号:US12485235

    申请日:2009-06-16

    Abstract: The present invention relates to a method and apparatus for producing a pressurized product stream product by cryogenic rectification. A main heat exchanger, used in the cryogenic rectification, warms a pumped product stream composed of oxygen-rich or nitrogen-rich liquid and thereby produces the pressurized product stream. Layers of the main heat exchanger are designed such that a reduction in the heat transfer area provided within the main heat exchanger for warming the pumped product stream occurs at a location at which the temperature of the pumped product stream exceeds either the critical or a dew point temperature of such stream. The reduction in heat transfer area leaves regions of the layers able to heat or cool another stream that is used in connection with the cryogenic rectification. Such other stream can be a refrigerant stream that allows the introduction of additional refrigeration to increase production of liquid products.

    Abstract translation: 本发明涉及通过低温精馏生产加压产品流产品的方法和装置。 用于低温精馏的主热交换器加热由富氧或富氮液体组成的泵送产物流,从而产生加压产物流。 主热交换器的层被设计成使得在主热交换器内提供的用于加热泵送产物流的传热区域的减少发生在泵送产物流的温度超过临界值或露点 这种流的温度。 传热区域的减少使得各层的区域能够加热或冷却与低温精馏有关的另一种流。 这样的其它流可以是制冷剂流,其允许引入额外的制冷以增加液体产品的生产。

    METHOD AND APPARATUS FOR PRESSURIZED PRODUCT PRODUCTION
    7.
    发明申请
    METHOD AND APPARATUS FOR PRESSURIZED PRODUCT PRODUCTION 有权
    用于加压产品生产的方法和装置

    公开(公告)号:US20100313600A1

    公开(公告)日:2010-12-16

    申请号:US12485235

    申请日:2009-06-16

    Abstract: The present invention relates to a method and apparatus for producing a pressurized product stream product by cryogenic rectification. A main heat exchanger, used in the cryogenic rectification, warms a pumped product stream composed of oxygen-rich or nitrogen-rich liquid and thereby produces the pressurized product stream. Layers of the main heat exchanger are designed such that a reduction in the heat transfer area provided within the main heat exchanger for warming the pumped product stream occurs at a location at which the temperature of the pumped product stream exceeds either the critical or a dew point temperature of such stream. The reduction in heat transfer area leaves regions of the layers able to heat or cool another stream that is used in connection with the cryogenic rectification. Such other stream can be a refrigerant stream that allows the introduction of additional refrigeration to increase production of liquid products.

    Abstract translation: 本发明涉及通过低温精馏生产加压产品流产品的方法和装置。 用于低温精馏的主热交换器加热由富氧或富氮液体组成的泵送产物流,从而产生加压产物流。 主热交换器的层被设计成使得在主热交换器内提供的用于加热泵送产物流的传热区域的减少发生在泵送产物流的温度超过临界值或露点 这种流的温度。 传热区域的减少使得各层的区域能够加热或冷却与低温精馏有关的另一种流。 这样的其它流可以是制冷剂流,其允许引入额外的制冷以增加液体产品的生产。

    NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT
    8.
    发明申请
    NITROGEN LIQUEFIER RETROFIT FOR AN AIR SEPARATION PLANT 审中-公开
    用于空气分离设备的氮气液化器改造

    公开(公告)号:US20090320520A1

    公开(公告)日:2009-12-31

    申请号:US12164269

    申请日:2008-06-30

    Abstract: A method is disclosed for increasing liquid production involving retrofitting an existing air separation plant with a nitrogen liquefier. The nitrogen liquefier liquefies a nitrogen-rich vapor stream withdrawn from the higher pressure column to return a nitrogen-rich liquid stream to the higher pressure column. This increases liquid nitrogen reflux to the higher pressure column to in turn increase the production of liquid oxygen containing column bottoms of the higher pressure column and therefore, the production of oxygen-rich liquid in the lower pressure column. The increased production of the oxygen-rich liquid allows a liquid oxygen product to be taken at an increased rate or for the liquid oxygen product to be taken in the first instance, if the plant is not designed to produce such a product. Also liquid nitrogen and argon products can be produced at an increased rate as a result of the retrofit.

    Abstract translation: 公开了一种用于增加液体生产的方法,涉及用氮液化器改造现有的空气分离设备。 氮液化器液化从高压塔排出的富氮蒸气流,将富氮液流返回高压塔。 这将液氮回流增加到较高压力塔,从而增加了高压塔的含有液氧的柱底产物,从而在低压塔中产生富氧液体。 增加富氧液体的产量允许以增加的速率获取液氧产物,或者如果植物不是设计成生产这样的产品,则首先要采取液氧产物。 由于改造,液氮和氩产品也可以以增加的速度生产。

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