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    • 8. 发明授权
    • Membrane based fuel deoxygenator
    • 膜基燃料脱氧器
    • US06315815B1
    • 2001-11-13
    • US09464112
    • 1999-12-16
    • Louis J. SpadacciniRichard A. MeinzerHe Huang
    • Louis J. SpadacciniRichard A. MeinzerHe Huang
    • B01D1900
    • F02C7/224B01D19/0031B01D53/22B01D61/00B01D2257/104
    • Apparatus and method for the deoxygenation of liquid fuel in the fuel system of an energy conversion device, such as an aircraft gas turbine engine. A membrane filter is disposed in the fuel system and is selected to remove oxygen from the fuel, typically a hydrocarbon, while excluding the fuel. The membrane filter may be permeable or porous to the oxygen and, in a preferred embodiment, is of polytetraflouroethylene. Fuel with dissolved oxygen (typically from air) is flowed in contact with one surface of the membrane filter, and removed oxygen is collected from the opposite surface of the filter. The difference in the partial pressure of oxygen across the membrane filter may be controlled to regulate the driving force for moving oxygen through the membrane. Reduction of the oxygen concentration in jet fuel to less than 10 ppm at liquid space velocities of 100/hr and greater are attained.
    • 在诸如飞机燃气涡轮发动机的能量转换装置的燃料系统中对液体燃料进行脱氧的装置和方法。 膜过滤器设置在燃料系统中,并且被选择为从燃料(通常为烃)中除去氧气,同时排除燃料。 膜过滤器对于氧可以是可渗透的或多孔的,并且在一个优选的实施方式中是聚四氟乙烯。 具有溶解氧(通常来自空气)的燃料与膜过滤器的一个表面接触地流动,并且从过滤器的相对表面收集去除的氧气。 可以控制穿过膜过滤器的氧气分压的差异,以调节用于使氧气通过膜的驱动力。 实现了在100 /小时以上的液体空间速度下将喷气燃料中的氧浓度降低到小于10ppm。
    • 10. 发明授权
    • Method for enhancing mass transport in fuel deoxygenation systems
    • 增加燃料脱氧系统中的质量运输的方法
    • US07824470B2
    • 2010-11-02
    • US11334126
    • 2006-01-18
    • Louis ChiappettaLouis J. SpadacciniHe HuangMallika GummallaDochul Choi
    • Louis ChiappettaLouis J. SpadacciniHe HuangMallika GummallaDochul Choi
    • B01D53/22
    • B01D19/0042B01D19/0031
    • A fuel system for an energy conversion device includes a deoxygenator system with a multitude of flow impingement elements which are interleaved to provide a fuel channel with intricate two-dimensional flow characteristics. The flow impingement elements break up the boundary layers and enhance the transport of oxygen from the core of the of the fuel flow within the fuel channel to the oxygen permeable membrane surfaces by directing the fuel flow in a direction normal to the oxygen permeable membrane. The rapid mixing of the relatively rich oxygen core of the fuel with the relatively oxygen-poor flow near the oxygen permeable membrane enhances the overall removal rate of oxygen from the fuel. Because this process can be accomplished in fuel channels of relatively larger flow areas while maintaining laminar flow, the pressure drop sustained is relatively low.
    • 用于能量转换装置的燃料系统包括具有多个流动冲击元件的脱氧器系统,其被交错以提供具有复杂二维流动特性的燃料通道。 流动冲击元件通过沿着与透氧膜垂直的方向引导燃料流而分解边界层并增强氧从燃料通道内的燃料流的核心输送到氧气渗透膜表面。 燃料的相对富氧核心与氧气渗透膜附近的相对贫氧流的快速混合提高了氧气从燃料中的总体去除速率。 因为该过程可以在维持层流的同时在相对较大的流动区域的燃料通道中实现,所以压力下降相对较低。