Overtemperature in PSA adsorption tower
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Experts: The PSA adsorption tower in our unit has overheated by about 100°C. What could be the reason for this?
Check if it's a table issue. This substance is held in place through physical adsorption; there is no chemical reaction involved. There are strict requirements regarding the inlet temperature for PSA
What are the specific gas components? And what about the adsorbent filling status? Are there any molecular sieve types? If it’s not a gauge issue, then it’s possible that there’s water present, or it could be carbon dioxide that has penetrated. Analyze each specific issue individually.
Upstream air cooling – is cooling water no longer effective?
Is the inlet overheating? PSA has strict requirements regarding temperature; an increase above 50°C will trigger an interlock
The PSA unit itself involves physical adsorption and desorption, with the entire process remaining at a nearly constant temperature. The adsorption tower temperature rose to around 100°C; it is likely due to excessive temperature of the feed gas or water entering the adsorbent. Based on the poster’s description, the possibility of water entering the adsorbent is greater.
That’s impossible, right? Is it the thermometer that provides heating, raising the temperature to 100°C?
What device, and what is the medium?
Don’t you have a temperature interlock for imports?