|
Vacuum Distillation
#1
Posted 11 April 2021 - 07:28 AM
I am little bit confused about tower selection (tray or packed) for my vacuum distillation unit. I have read from many resources that Packed columns are favorable for vacuum applications. But none of them mentions a limiting value like “below x pressure packed column is a must”
I am designing a column where bottom pressure is around 70kPa and top pressure is around 51kPa. I want to know whether it is okay or not to use Tray Tower for this separation?
Thank you beforehand!
#2
Posted 11 April 2021 - 08:29 AM
Hi,
You may find pointers in the documents attached .
Hope this is helping you.
Breizh
Edited by breizh, 11 April 2021 - 08:33 AM.
#3
Posted 14 April 2021 - 01:29 AM
Hello everyone!
I am little bit confused about tower selection (tray or packed) for my vacuum distillation unit. I have read from many resources that Packed columns are favorable for vacuum applications. But none of them mentions a limiting value like “below x pressure packed column is a must”
I am designing a column where bottom pressure is around 70kPa and top pressure is around 51kPa. I want to know whether it is okay or not to use Tray Tower for this separation?
Thank you beforehand!
Packed columns are favoured due to the lower pressure drop with packing than with trays, this means the pressure at the flash zone can be lower than with trays and therefore the amount of vaporisation at a given temperature is greater, giving better yields. The difference between a few mmHg at low pressure is significant in terms of vaporisation, the same difference for an atmospheric column is negligible.
Similar Topics
Diked Area Around Distillation ColumnStarted by Guest_hysyshunter_* , 15 Apr 2024 |
|
|
||
Distillation Column Decommissioning ChecklistStarted by Guest_m.bhut_* , 08 Apr 2024 |
|
|
||
Answered
Vacuum Ejector Pressure ControlStarted by Guest_himanshu.ch_* , 19 Mar 2024 |
|
|
||
Reactive Distillation MtbeStarted by Guest_Michael Mitra_* , 15 Mar 2024 |
|
|
||
Vacuum DistillationStarted by Guest_hysyshunter_* , 12 Mar 2024 |
|
|