High differential pressure in fiber membrane contactor
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How can high differential pressure in the liquefied gas desulfurization and purification fiber membrane contactor be addressed without shutting down the operation?
If there’s a backup, you can switch to it! If not, water can be added in appropriate amounts to dilute and dissolve some of the blocked sulfides; after the alkaline solution is reconfigured and normal circulation is restored, it can then be put into use!
There is no backup, but it can be removed; the pressure is too high and there is no water injection process – a temporary connection can be tried
Has anyone dealt with this online? Please share your experience
Once before, in our factory, we cut out the alkali washing tank, then fed in demineralized water and used steam for heating; the process was carried out on a cycle basis for 24 hours, and once it was put into use, the pressure drop returned to normal.
It still needs to be cut out. With the current process changes, one alkali solution circulation pump is used for the grade 2 fiber membrane, making it difficult to achieve circulation within a single container
The last edit to this post was made by Refiner on 2020-6-14 at 07:33. Washing with water and heating with steam is a good approach; but what should be done with the liquefied gas in that tank? Is it necessary to remove it, or is simply releasing pressure sufficient?