Is the overhead gas from the deethanizer in the vapor handling unit sent to the condensed oil tank?
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Does your vapor treatment unit send the overhead gas from the deethanizer to the condensate tank at the stabilization station? In our case, it goes to the crude gasoline tank
Pressure matching, energy savings – a condensate tank is the suitable choice
It is designed to be catalyze-stable, but the pipelines are relatively thin and often get clogged, especially in winter (due to blind spots in the heat tracing), so sometimes the watt torch system is also turned down
For my 300,000-ton gas separation unit, the pipeline leading to the condensate tank is DN25. We have not used this process for sending material to the condensate tank; occasionally I come across articles on energy conservation, which suggest that using this approach with compressors can lead to waste
There are mainly two functions. First, during normal production when the pressure is high, around 2.6 Mpa, it is necessary to switch to the compressor outlet. When production stops, if the pressure is lower than that at the compressor outlet, then it should be switched to the compressor inlet, so as to ensure that the liquefied gas components can be effectively recovered when the gas separation unit is shut down.
Condensate oil tank, which helps save energy. But the pipelines you designed are clearly a bit too thin; when there is a disruption in the circulating water for gas separation, the gas cannot be discharged quickly enough.