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No oil can be drained from the top of the vacuum tower; the temperature and pressure at the top cannot be reduced

2017-06-07View Original

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No oil can be drained from the top of the vacuum tower; the temperature and pressure at the top cannot be reduced
Reply #22017-06-07
What are the reasons why the reflux flow at the top of the atmospheric tower in a vacuum distillation unit is insufficient, and why the temperature at the top of the tower cannot be reduced?
Reply #32017-06-07
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Reply #42017-06-08
The heat removal load due to backflow in the tower is reduced. Increase the flow rate or reduce the return fluid temperature.
Reply #52017-06-08
The upper part of the tower is dry; is there any backflow when reducing by one line?
Reply #62017-07-15
Is it a atmospheric tower or a vacuum tower?
Reply #72017-07-16
When oil does not flow from the top of the tower for an extended period, high temperatures cause a dry layer to form; by using heavy diesel to facilitate reflux, it is possible to keep the temperature at the top of the tower under control

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