The issue of adding water to the cathode of ion membrane cells
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This post was last edited by sunjl1981 on 2013-1-6 at 21:42. I would like to ask everyone: in the Asahi Kasei ion membrane process, does the amount of water added to the cathode of the electrolyzer gradually increase as the electrolyzer operates for longer periods? Thank you, it’s urgent! ! ! Urgent! ! ! hcbbs !! . hcbbs
As the cell operates for an extended period, the current efficiency decreases, various impurities accumulate on the ion membrane, the sodium ion exchange capacity of the membrane gradually declines, and the amount of sodium ions passing through the membrane into the cathode chamber gradually decreases. With the concentration at the anode solution inlet remaining constant, should the sodium chloride concentration at the anode outlet increase accordingly?
As for the amount of water to add, it mainly depends on the concentration of the catholyte in and out of the tank, rather than on how much water is added at the beginning or end.
What is the typical concentration of alkali added to the tank? Asahi Kasei electrolyzer’s