Discussion on the safety design for sharing a chlorine drying system between diaphragm and ion exchange membranes
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This post was last edited by sunjl1981 on 2013-1-6 at 23:45. Our company has a caustic soda production project with an annual capacity of 160,000 tons; the first phase involves 60,000 tons per year of diaphragm caustic soda, while the second phase covers 100,000 tons per year of ion-exchange membrane caustic soda. The original design called for a single chlorine drying system to be used for both phases. Now, the construction of the ion-exchange membrane caustic soda facility in the second phase has entered the design stage. Since there is very little knowledge available regarding manufacturers that share the same chlorine drying system, I have some concerns about the design approach proposed by the design institute, which involves first using a pressure reducing valve to lower the chlorine pressure to zero, and then passing the chlorine through a water seal before it mixes with the chlorine from the chlorine scrubber tower and diaphragm system and is integrated into the system. I would appreciate any guidance from experienced experts. # ， ， &
The chlorine gas produced by diaphragm caustic and ion-exchange membrane caustic can share the same chlorine drying system. Our company uses one chlorine treatment system for 4 WT/year of diaphragm caustic and 10 WT/year of ion-exchange membrane caustic; it has been in operation for over half a year with no problems so far.
Is the method mentioned by the original poster being used? Could you explain in detail how the two systems are connected?
You can ask Yibin Tianyuan and Shandong Jinling; they are both in the same place.
The guys above didn’t specify the exact process; I hope everyone can continue to offer their guidance! Thank you!
A titanium fan can be installed at the diaphragm chlorine outlet to increase its pressure, after which it can be combined with the ion-exchange membrane chlorine gas
It can be considered, but I’m not sure if the plan proposed by the design institute will work
There is a concern regarding the titanium fan installed at the diaphragm chlorine outlet: whether the pressure will remain stable and whether this could affect the level of the brine