When the ion membrane is acidified, does the voltage increase?
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This post was last edited by sunjl1981 on 2013-1-6 at 21:20. In our tank, slot I, chlorine gas was used to acidify it during parking; the acid concentration at the inlet was 0.146 moles per liter, while the pH at the outlet was around 4.10. In the other nine tanks, the acid concentration was around 0.080 moles per liter, with a pH at the outlet of around 2.5. However, the tank pressure remained almost unchanged compared to before. Please ask all the experts to help analyze # + +. hcbbs
How long has it been since your I-slot system stopped running? If the operating time is short, there may be pinholes in the ion membrane; new membrane leaks can cause a slight drop in voltage. If the operating time is long, the voltage rises significantly, and the membrane should be replaced promptly. If your unit operates for short periods of time, monitor the voltage during subsequent operations
It’s been two months, and there’s no change in the slot pressure! The distribution is fairly even, with little variation
May I ask a few questions? 1. How do you determine that the ion membrane has become acidic? 2. What was the situation regarding acid addition before parking in slot I? 3. Was a thorough membrane leakage test performed before restarting the machine? In your case, it’s likely that there are quite a few holes in the membranes; you should pay close attention to this during parking for maintenance. It is recommended to stop operation of the tank and conduct a membrane leakage test, replacing the faulty membrane – safety first.
Previously, acid was added to a level of around 0.080 moles per liter for imports, while the pH at export was around 2.5； Experts in Japan say that it is necessary to follow the operating procedures strictly – conduct a membrane leakage test before driving, and if everything is fine… Guys, has anyone encountered a similar situation? Thank you!
If the ion exchange membrane is acidified, its lifespan will decrease and the cell voltage will rise; this is inevitable.