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    • 2. 发明申请
    • METHOD FOR DETERMINING THE INDIVIDUAL CURRENT EFFICIENCY IN AN ELECTROLYSER
    • 确定电解中单个元素电量的方法
    • WO2013023733A2
    • 2013-02-21
    • PCT/EP2012003102
    • 2012-07-24
    • THYSSENKRUPP UHDE GMBHKIEFER RANDOLFBAEUMER ULF-STEFFENWAGNER DIETMARSTREITBOERGER MICHAEL
    • KIEFER RANDOLFBAEUMER ULF-STEFFENWAGNER DIETMARSTREITBOERGER MICHAEL
    • C25B15/02C25B1/46
    • The invention relates to a method for determining the current efficiency of the individual elements in an electrolyser comprising at least one cell element of an electrolyser. For this purpose, a method is described, wherein an electrolysis current I is applied to an electrolyser comprising at least one individual element and is raised to a specific current value; a time is determined, which is set randomly before or after the electrolysis current is switched on, wherein the electrolysis current must not exceed a specific maximum value; the voltage U­i of the at least one individual element i is measured and the average of all the individual element voltages UM is measured; a time tEND is determined, after which all the cell voltages of individual elements deviate by a defined voltage difference from the average of all the individual element voltages; the area Ai under the voltage curve of each individual element is determined via numerical integration over a suitable variable x in the limits between x0 = x(t0) und xEND = x(tEND); the area AM under the voltage curve of the average of all the individual elements is determined by numerical integration against the variable x in the limits x(t0) and x(tEND); the average electrolyser current efficiency is determined via a method according to the prior art; the current efficiency of each individual element is calculated as a function of the electrolyser current efficiency via an empirical function, wherein the empirical function includes the area ratio Ai / AM.
    • 本发明涉及一种用于确定包括电解器的至少一个电解槽元件的电解槽的各个元件的电流效率的方法。 为此,描述了一种方法,其中电解电流I被施加到由至少一个单个元件组成的电解槽并被升高到一定的电流值; 确定在电解电流接通之前或之后任意设置的时间,其中电解电流不得超过某个最大值; 测量至少一个单独元件i的电压Ui并且测量所有单独元件电压UM的平均值; 确定时间tEND,在此之后,单个元件的所有单元电压偏离所有单独元件电压的平均值的规定电压差; 在每个单独元素的应力曲线下的面积A i通过在x 0 = x(t 0)和XEND = X(t END)之间的边界中通过适当的变量x的数值积分来确定; 在所有单个元素的平均值的电压曲线下的面积AM通过在限制x(t0)和x(tEND)中对变量x的数值积分来确定; 平均电解槽流出物产率通过现有技术的方法确定; 通过经验函数计算每个单独元件的电流效率作为电解器电流产量的函数,经验函数包括面积比Ai / AM。