Hydrogen recovery hollow fiber membrane
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Our company’s hydrogen recovery unit uses hollow fiber membranes for water flow. After that, the resistance increases and the recovery rate decreases. Is there any way to restore and improve the situation? Please help to research this!
Personally, I don’t think there’s any good way to restore it, as hollow fiber membranes are most sensitive to water ingress. You can also increase the temperature of the gas entering the membrane and give it a try for some time; personally, I don’t think it will have much effect. Doing this when water enters the system might be effective, but I’m not sure how long it has been since water started flowing into the membrane.
Agree with the view from the 2nd floor: Hollow fiber membranes are most vulnerable to water ingress; once water gets in, the pores of these membranes expand, and the concentration of hydrogen recovered decreases significantly. Raising the temperature of the gas entering the membrane and operating for a period of time has a slight effect on drying the moisture within the hollow fiber membrane.
There’s no other choice but to replace the fiber membrane; there’s no good solution
If the above experiments are ineffective, then, as mentioned on floor 4, the only option is to replace the membrane.
Is this technology now very common in ammonia synthesis plants?