Software used for supercritical CO2 pipeline transportation
Software used for supercritical CO2 pipeline transportation
(OP)
Please advice me, in order to know what are the typical softwares used for supercritical CO2 pipeline transportation, for the following pipeline parameters:
- Inlet Operating Pressure is 120 bar;
- Operating Inlet Temperature is 32 deg.
From my point of view, the software must be used for steady state and dynamic analysis, in order to simulate the procedures for start-up, shut down and blow down of the pipeline (which might lead to very low temperatures and formation of solid CO2)
I am also interested to know if the software is made for:
- pure CO2
or
- CO2 with impurities.
Thank you very much for your help.
- Inlet Operating Pressure is 120 bar;
- Operating Inlet Temperature is 32 deg.
From my point of view, the software must be used for steady state and dynamic analysis, in order to simulate the procedures for start-up, shut down and blow down of the pipeline (which might lead to very low temperatures and formation of solid CO2)
I am also interested to know if the software is made for:
- pure CO2
or
- CO2 with impurities.
Thank you very much for your help.





RE: Software used for supercritical CO2 pipeline transportation
Some work has been done using Stoner Pipeline Simulator and Pipeline Studio, probably only steady state modes, but the programs do have transient capabilities that might be utilized, although I can't say for sure if it can be applied to dense phase and I doubt 2-phase, if you mean gas/liquid. Best thing is to give them a call. You might also try calling the Olga2000 group.
Please let us know what they say.
What would you be doing, if you knew that you could not fail?
RE: Software used for supercritical CO2 pipeline transportation
From my looking so far, it appears that a key problem is heat transfer between the pipeline and the soil it's buried in. This is a key factor in converting from what the phase envolope pressure / temperature shows for adiabatic blowdown and what will REALLY happen when the pipeline cools and transfers heat with surroundings.
Good luck and like BigInch said, let us know what you find!
RE: Software used for supercritical CO2 pipeline transportation
Hysis probably works well as long as you maintain ONE phase in any given scenario, but I don't use it, so I can't be sure about that. If you get a CO2 freezing temp, the scenario finishes at that point with a CO2-ice plug. Higher temperature areas downstream to the BD would however presumably continue to blow down until they froze too. Continuing the scenario after that point would probably be pointless, it won't get below freeze temperature. Just assume any remaining gas will continue to exit at the blowdown at a much reduced rate and perhaps not freeze again. That would continue until pressure is depleted or the ice plug melts again. You could start a new reduced picture scenario with that condition, if there was anything of interest left of the outcome.
What would you be doing, if you knew that you could not fail?
RE: Software used for supercritical CO2 pipeline transportation
RE: Software used for supercritical CO2 pipeline transportation
Best regards
Morten
RE: Software used for supercritical CO2 pipeline transportation
I am interested to take into account pressure between 150 bar down to ambient, so there is an issue with the maximum pressure value.
MortenA you told us to not use HYSYS. Can you recommend us another software?
Thanks.
RE: Software used for supercritical CO2 pipeline transportation
Morten
RE: Software used for supercritical CO2 pipeline transportation
If it ain't broke, don't fix it. If it's not safe ... make it that way.
RE: Software used for supercritical CO2 pipeline transportation
RE: Software used for supercritical CO2 pipeline transportation
If it ain't broke, don't fix it. If it's not safe ... make it that way.
RE: Software used for supercritical CO2 pipeline transportation