In the HYSYS simulation of triethylene glycol dehydration, the temperature of the lean liquid exiting the regeneration tower is higher than the set reboiler temperature.

2017-04-12View Original

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Simulating the dehydration of triethylene glycol, the reboiler temperature in the regeneration tower was set at 204; why is the temperature of the lean liquid exiting the regeneration tower 240? I have just started using HYSYS and there are many things I don’t understand; please, teachers, help me explain them

Reply #22017-04-13

The temperature is higher than expected, which indicates that the content of heavy substances is higher than anticipated; check the efficiency of the separation tower

Reply #32017-04-15

Thank you very much, teacher; the problem has been solved. As the teacher said, it was my requirement for the triethylene glycol concentration at the exit of the tower to be too high. Thank you again to the teacher for helping me understand.

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In the HYSYS simulation of triethylene glycol dehydration, the temperature of the lean liquid exiting the regeneration tower is higher than the set reboiler temperature.

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