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    • 9. 发明授权
    • Process and apparatus for determining ratio of fluid components such as methanol and water for reforming feed
    • 用于确定重整进料的流体组分如甲醇和水的比例的方法和装置
    • US06690180B2
    • 2004-02-10
    • US09855315
    • 2001-05-15
    • Robert N. SchwartzPaul O. BraatzKevin W. Kirby
    • Robert N. SchwartzPaul O. BraatzKevin W. Kirby
    • G01R2726
    • H01M8/04089G01N27/221H01M8/04194
    • A method and sensor for determining the ratio of two components in a fluid mixture comprising a test cell in open communication with the fluid mixture and a reference cell containing a desired fluid mixture not in contact with the fluid mixture being tested, said reference and test cells having the same cell geometry. By use of a capacitance divider system, one determines the relative capacitances of said cells correlated with the dielectric constants of the respective fluid mixtures and ascertains the ratio of one component to the other component in the fluid mixture on the basis of the linear and monotonic correlation between the dielectric constant of the mixture at a given temperature and the ratio of one component to the other component. Preferably a mixture of methanol and water is tested such as for use as a feed to a reformer used in supplying hydrogen to a fuel cell. A fixed capacitor equivalent to the reference cell at a given temperature is usually substituted for the latter.
    • 一种用于确定包含与流体混合物开放连通的测试池的流体混合物中的两种组分的比例的方法和传感器,以及含有不与所测试的流体混合物接触的所需流体混合物的参考池,所述参考和测试池 具有相同的单元几何形状。 通过使用电容分配器系统,可以确定所述电池的相对电容与各流体混合物的介电常数相关,并且基于线性和单调相关性确定流体混合物中的一种组分与另一组分的比例 在给定温度下混合物的介电常数和一种组分与另一组分的比例。 优选地测试甲醇和水的混合物,例如用作用于向燃料电池供应氢气的重整器的进料。 在给定温度下等效于参考电池的固定电容器通常用于后者。