Optimization of PVC stripping operation at Nihon Chisso
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The Japanese Chisu stripping tower uses a negative-pressure design with small openings; these openings tend to get blocked during operation, resulting in localized flooding issues, poor boiling conditions, and a short operational cycle. Are there any ways to improve or optimize this situation?
Isn’t there a trial run for the nitrogen tower? Observe it during operation. Is it the excessive steam, or insufficient rinsing? Or some other reason? Looking forward to a reply! !
1. Check whether the filter needs to be modified (some filters have removable filters; when washed, their filtering efficiency is poor, so it is necessary to fix the filters in place)； 2. If the filter shows signs of being clogged, do not rinse it; switch to another filter promptly ； 3. The steam pressure must be kept stable ； 4. If the temperature is too low, reduce the dosage first; once the temperature is normal, increase it again ； 5. Ensure the effectiveness of tray washing by checking the washing volume through trial tests. I just summarized it myself; if there are any mistakes, let’s discuss them further.