Analysis of the reasons for poor performance of the low-temperature methanol washing dehydration tower
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The dehydration tower in the low-temperature methanol washing process performs poorly, resulting in an increase in the water content in the system; however, the tray inspection showed normal results.
What is the phenomenon of poor efficiency? The specific reasons need to be analyzed carefully – whether it’s due to operational issues or design problems. Operational factors such as improper handling, impurities in the feed liquid, or incorrect settings for operating temperature and reflux ratio can all affect the efficiency of distillation. Design-related problems are relatively rare; perhaps there are issues with the installation.
The probability of problems with a well-developed process design is low; focus on the operation, especially the temperature of the sensitive board
The temperature at the top of the tower is high, and the temperature at the bottom of the tower cannot be increased. This leads to an increase in the water content in the circulating methanol, as well as an increase in the methanol content in the wastewater
Adjust the feed inlet, analyze the feed composition, and try adding some reflux
Send a diagram of operating the DCS and take a look