What are the reasons for flooding in the triethylene glycol contact tower in the natural gas dehydration process? Need help?
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What are the reasons for flooding in triethylene glycol contact towers?
1. Excessively high temperature at the bottom of the tower. 2. Excessive heat removal from the reboiler at the bottom of the tower, resulting in an excessively high temperature there. 3. Low pressure at the top of the tower, causing the light components to rise upward. 4. Excessive amount of steam used for stripping at the bottom of the tower. 5. Excessively high feed temperature, well above the bubble point temperature of the liquid. Any of these factors can lead to flooding; in short, flooding occurs as a result of a disruption in the thermal balance of the tower, and its root cause is an excess of light components within the tower along with an excessive gas phase volume