sshep
Chemical
- Feb 3, 2003
- 761
My friends,
We have many distillation towers running under vacuum. The vacuum can be pulled by jets, liquid ring pumps, vacuum pumps, or combinations of these. The design is usually for some small air engress, typically less than 100 lbs/hr. The off-gas typically goes to an incinerator or to atmosphere, but in no cases to the plant flare system. This decision is probably driven by concern about the possibility of air going to flare.
The operations manager wants to reroute the vacuum unit off-gas to flare. I am doing a survey of practices elsewhere. How are you guys handling vacuum unit off-gas in your units?
best wishes,
Sean
We have many distillation towers running under vacuum. The vacuum can be pulled by jets, liquid ring pumps, vacuum pumps, or combinations of these. The design is usually for some small air engress, typically less than 100 lbs/hr. The off-gas typically goes to an incinerator or to atmosphere, but in no cases to the plant flare system. This decision is probably driven by concern about the possibility of air going to flare.
The operations manager wants to reroute the vacuum unit off-gas to flare. I am doing a survey of practices elsewhere. How are you guys handling vacuum unit off-gas in your units?
best wishes,
Sean