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Distillation Column
#1
Posted 23 July 2020 - 10:39 AM
#2
Posted 23 July 2020 - 11:49 AM
That is not true! Where did you get that idea?
Bobby
#3
Posted 05 August 2020 - 12:08 AM
Edited by scubedist, 05 August 2020 - 12:10 AM.
#4
Posted 05 August 2020 - 01:50 AM
Hi,
Probably good to perform an heat balance to convince yourself.
Good luck
Breizh
#5
Posted 10 August 2020 - 10:42 PM
I have question regarding reason of high diff. pressure in distillation column. Can it may be because of low liquid reflux flow or dual flow in reflux due to upstream pressure drop? Assuming reboiling duty is already reduced than operating value, feed flow is same and feed service is ethylene and ethane composition. what I feel that dual flow in total reflux flow will reduce the net reflux and top product and bottom both will affected. Once top product quality start affecting, we try to reduce reboiling and thus bottom quality starts contaminate. But main question is that if net liquid reflux is getting affected then column overhead part is loaded with high vapour load and thus can be seen high diff. pressure. Can enlighten the thoughts.
#6
Posted 11 August 2020 - 04:35 PM
You can expect to find that hydrates are the likely cause of your problem. It's quite unusual to find tray damage in this service. And, to clarify your question, you should provide numbers that reflect your operation. I don't know what dual reflux is, for example. And a flow diagram would be helpful, including upstream operations.
Bobby
#7
Posted 12 August 2020 - 01:41 PM
You can expect to find that hydrates are the likely cause of your problem. It's quite unusual to find tray damage in this service. And, to clarify your question, you should provide numbers that reflect your operation. I don't know what dual reflux is, for example. And a flow diagram would be helpful, including upstream operations.
Bobby
Yes sir, you are correct.
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