Questions regarding current efficiency
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This post was last edited by sunjl1981 on 2013-1-6 23:35. I would like to ask the experts how to calculate current efficiency? What factors affect current efficiency? (Our company’s unit consumption is 2150) # , , &
Is it an ion-exchange cell or a diaphragm cell? The current efficiency of the ion exchange membrane is: actual alkali production/theoretical alkali production.
Diaphragm alkali is also the ratio of actual alkali production to theoretical alkali production: lol
If we talk about the factors that affect current efficiency, this is such a broad topic that a whole book could be written on it. For chlor-alkali production, the key factors are as follows: 1. Quality of brine. 2. Equipment quality, including the membrane, anode, cathode coatings, etc. 3. Management level, including the number of times of current adjustment (turning power on and off), leaks, pressure control level, concentration control level, etc. Regarding the situation of existing enterprises, I believe the focus should be on management, as improving the level of control over manufacturing processes is of utmost importance.
In ion-exchange membrane electrolysis, how is the theoretical yield of cocoons calculated?
Alkali production = 1.492*nt/1000, where 1.492 is the electrolytic equivalent of alkali, I = operating current in KA/h, n = number of cells, and t = time in hours
Theoretical alkali production amount = (electric charge / 96485) * molecular weight, where electric charge = I*t； I is current (A) ； t is the runtime (seconds, s) ； 96485 is the Faraday constant (coulombs per mole, C/mol) ； Battery charge/96485 is the amount of substance of the base produced ； The molecular weight is 40 g/mol.
1.492 is equal to 3600*40/96485 = 1.492