CO2 gas solubility data regression
CO2 gas solubility data regression
(OP)
I am currently trying to use Aspen to generate a suitable model of a CO2-water equilibrium.
I have data for CO2 pressure at a variety of temperatures and the corresponding CO2 concentrations in water. I have only just started using Aspen. So far I have tried using the data regression section with CO2 and water as components and then supplying my data as TPxy VLE data with the vapour fraction of CO2 as 1.
Any help will be much appreciated.
I have data for CO2 pressure at a variety of temperatures and the corresponding CO2 concentrations in water. I have only just started using Aspen. So far I have tried using the data regression section with CO2 and water as components and then supplying my data as TPxy VLE data with the vapour fraction of CO2 as 1.
Any help will be much appreciated.





RE: CO2 gas solubility data regression
CO2g <--> CO2aq <--> HCO3aq <--> H2CO3aq
Also, if water is not pure, there is solution equilibrium, and perhaps even precipitation with Na, Ca, Mg, etc.
I wished I knew more about Aspen capabilities in this regard. If you get no help here, perhaps repost in the Chemical Engineering forum at this site? There appears to be many more Aspen users there.
Good luck.
RE: CO2 gas solubility data regression
could you send me your experimental information regarding the gas solubility and T;P .
those should be usefull for me as well.
I am waiting for your kindly reply
Regards
kourosh khadjeh (PhD student)
Dep. of Chemical Engineering Design
Chalmers University of Technology
Gothenburg - Sweden
RE: CO2 gas solubility data regression