Carbon Dioxide Liquefaction
Carbon Dioxide Liquefaction
(OP)
Hello everyone!
I'm looking for an answer to this question:
What equipment do we use to liquefy carbon dioxide?
The carbon dioxide is at initial temperature and pressure of 125 degree Celsius and 120 bar respectively. The liquefied CO2 product is required to have a temperature of 25 degree Celsius and pressure of 200 bar.
I've read some articles (http://www.ccivalve.com/pdf/429.pdf) on the net regarding the natural gas liquefaction but still could not extract enough information. Maybe I need some guidance from the expert to make me understand more about the gas liquefaction process. Thanks for helping!
I'm looking for an answer to this question:
What equipment do we use to liquefy carbon dioxide?
The carbon dioxide is at initial temperature and pressure of 125 degree Celsius and 120 bar respectively. The liquefied CO2 product is required to have a temperature of 25 degree Celsius and pressure of 200 bar.
I've read some articles (http://www.ccivalve.com/pdf/429.pdf) on the net regarding the natural gas liquefaction but still could not extract enough information. Maybe I need some guidance from the expert to make me understand more about the gas liquefaction process. Thanks for helping!





RE: Carbon Dioxide Liquefaction
Try talking to these guys - they make co2 plants all the time
http://www.union.dk/
Best regards
Morten
PS: They also have a free and very excellent co2 handbook:
http://www.union.dk/media/CO2-GB.pdf
RE: Carbon Dioxide Liquefaction
RE: Carbon Dioxide Liquefaction
I say this without looking at the moliier diagram to see if you go through a solid phase during the chilling.
RE: Carbon Dioxide Liquefaction
RE: Carbon Dioxide Liquefaction
Best regards
Morten
RE: Carbon Dioxide Liquefaction
I'll second Mortens suggestion, but, all good engineers responsible for the solution should be able to understand what the package solution does.
RE: Carbon Dioxide Liquefaction
we had a centrifugal compressor take it up to ~300 psig and go through a set of mole sieve dryers to remove any water and then went to the ammonia evaporator that was running ~ -28°F.
the liquid CO2 was stored at about -10°F and ~ 250 psig. this was over 10 years ago so the nominal temperatures/pressure of the storage might be a bit off.
+1 on the package design but make sure you have something to remove any water that might be present.