Gas blowby from separator to tank
Gas blowby from separator to tank
(OP)
Hi all,
I want to know gas blowby from upstream to the downstream- I have one scenario that now I'm working on. if trip on the pump can cause gas blowby from separator to the tank. I want to check is relive valve in the tank can handle gas blowby from separator or not. so what I want to ask is there any step should I follow to check gas blowby (how to check gas blowby).
thank you.
Regards,
Shaga
I want to know gas blowby from upstream to the downstream- I have one scenario that now I'm working on. if trip on the pump can cause gas blowby from separator to the tank. I want to check is relive valve in the tank can handle gas blowby from separator or not. so what I want to ask is there any step should I follow to check gas blowby (how to check gas blowby).
thank you.
Regards,
Shaga





RE: Gas blowby from separator to tank
Gas flowrate is then normally calculated as thought the level control valve for the liquid is fully open and the separatr full of gas at max operating pressure.
Often the flowrate is quite high, but everything depends on details.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Gas blowby from separator to tank
- As Littleinch says: Gas blow-by is gas going where its not intended to go (e.g. through a liquid line)
- Gas will only go from a higher pressure to a lower pressure so if your tank has a higher pressure than your separator then no
- BUT if if PAHH in your sep> SP of your PSV in your tank i would say yes
- Also if your need for pumping is due to hydrostatic head - it may be possible for gas to go to your tank (also through a tripped pump - at least if its a centrifugal pump)
You have to work through the various scenarias where P(sep)>SP of PSV in tank
Best regards, Morten
RE: Gas blowby from separator to tank
RE: Gas blowby from separator to tank
Surprise me Antonio!
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Gas blowby from separator to tank