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    Apparatus and method of heating pumped liquid oxygen
    1.
    发明授权
    Apparatus and method of heating pumped liquid oxygen 有权

    公开(公告)号：US06360561B1

    公开(公告)日：2002-03-26

    申请号：US09798111

    申请日：2001-03-02

    申请人： Rodney J. Allam ,  Declan P. O'Connor

    发明人： Rodney J. Allam ,  Declan P. O'Connor

    IPC分类号： F25J300

    摘要： High pressure gaseous oxygen is obtained safely and without compression by heating pumped liquid oxygen in a printed circuit type heat exchanger having layers of transversely extending laterally spaced channels with each layer being in thermal contact with at least one other layer. Oxygen is vaporized in channels of oxygen-layers against heat exchange fluid passing through channels of heat exchange layers. The walls of the oxygen layer channels are formed of ferrous alloy and have a cross-section, in a plane perpendicular to the direction of flow, having a thickness at its narrowest of at least about 10%, and on average at least about 15%, of the combined hydraulic mean diameters of the adjacent channels, and the ratio of cross-sectional area, in said plane, of the walls to the cross-sectional area of the channels is no less than about 0.7.

    Process and apparatus for the cryogenic separation of air
    3.
    发明授权
    Process and apparatus for the cryogenic separation of air 失效
    空气低温分离的方法和装置

    公开(公告)号：US06651460B2

    公开(公告)日：2003-11-25

    申请号：US10282406

    申请日：2002-10-29

    申请人： Declan P. O'Connor

    发明人： Declan P. O'Connor

    IPC分类号： F25J302

    CPC分类号： F25J3/04412 ,  F25J3/04303 ,  F25J3/04448 ,  F25J3/04454 ,  F25J3/04872 ,  F25J3/04939 ,  F25J2200/32 ,  F25J2200/34 ,  F25J2200/96 ,  F25J2205/30 ,  F25J2245/40 ,  F25J2245/42 ,  F25J2290/10 ,  Y10S62/90

    摘要： Oxygen-containing gas comprising no more than about 50 mol % oxygen is fed (150) to an auxiliary separation column (40) in a multiple column cryogenic air distillation system comprising at least a higher pressure (“HP”) column (10) and a lower pressure (“LP”) column (30) for separation into nitrogen-rich overhead vapor and oxygen-rich liquid. Oxygen-rich liquid is fed (154) from the auxiliary column (40) to an intermediate location in the LP column (30). The auxiliary column (40) is refluxed with a liquid stream from or derived from the HP column (10). One advantage of the invention is that the diameter of the upper sections (II, III) of the LP column (30) need no longer be larger than the diameter of the rest of the column system thereby increasing the capacity of the column system (under the constraint of a defined maximum column section diameter).

    摘要翻译： 包含不超过约50mol％氧气的含氧气体在包括至少较高压力（“HP”）塔（10）的多塔低温空气蒸馏系统中被供给（150）到辅助分离塔（40）和 用于分离成富氮塔顶蒸气和富氧液体的较低压力（“LP”）塔（30）。 富氧液体（154）从辅助塔（40）进入LP塔（30）的中间位置。 辅助塔（40）与来自HP塔（10）的液流一起回流。 本发明的一个优点是，LP塔（30）的上部（II，III）的直径不需要大于塔系统的其余部分的直径，从而增加塔系统的容量（下 定义的最大柱截面直径的约束）。