Why is the saline flow rate high while the hydrogen content in the single-tank chlorine is not high
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This post was last edited by sunjl1981 on 2013-1-6 21:27. For type 16 diaphragm electrolyzers, why is the flow rate of brine particularly high while the hydrogen content in the chlorine produced per cell is not high, and why is the alkali content in the electrolyte low? # &
Due to the overly high control of the saltwater level in the cell, the liquid seal for hydrogen at the cathode increases; as a result, the hydrogen content in the chlorine produced per cell does not rise. However, at the same time, the flow rate of saltwater passing through the membrane increases, and the excess saltwater that reaches the cathode dilutes the caustic soda, leading to a low alkali content in the electrolyte.
The diaphragm not being properly pressed leads to an excessive permeability of the membrane; as long as the wire mesh is not exposed, the hydrogen content in chlorine will not be high. A significant portion of the high-flow saline solution passes through the electrolyzer without undergoing electrolysis, entering the cathode chamber and diluting the catholyte, resulting in a very low concentration of the catholyte.
It is basically caused by the positive pressure of chlorine; sometimes, even if the chlorine content in the mesh bag is high, the hydrogen level may not necessarily be high as well. Due to the high positive pressure of chlorine in a single cell, hydrogen has difficulty entering the anode chamber. You can measure the pressure in your single-cell anode.
Which chlor-alkali plants do you all work for? Do you think it is necessary to use online analyzers for chlorine and hydrogen levels in the main pipes and exhaust gases? Those who are interested please get in touch with me. Han Wenye, 13910398083
Why does everyone need to take measures to fix things after a mistake has been made? The cost of an explosion is quite high. Take, for example, the recent accident at a factory in Shandong.
The membrane adsorption density is insufficient, and the liquid level control is too high