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I am performing simulations of water absorbing small amounts of CO2 and furan, using Aspen’s built-in data sets; I have also added the furan component. However, the following errors occur during the simulation: Block: B1 Model: RADFRAC HENRY CONSTANT MODEL – HENRY1 has missing parameters. Please provide the missing parameters for the major solvents. This error may occur because the stream is entirely vapor, yet a VLE calculation is requested. Try specifying VALID-PHASES=VAPOR-ONLY. The Henry/1st element (data set 1) is missing for the supercritical component furan along with all solvents: H2O. *** There is a severe error in the physical property system; attempts to calculate the infinite dilution properties of furan in water have failed. You must provide either DHAQFM, DGAQFM, and CPAQ0, or the Henry constant parameters (HENRY). **** Property parameter errors were encountered during the calculation of the molar enthalpy of the liquid mixture using option set SYSOP15 for H. It seems that there are no data available regarding furan’s solubility in water. How can this issue be resolved? I tried estimating using physical properties, but I wasn’t able to obtain these values. The boss is pressing for results now, so I hope I can get everyone’s help. The attachment to PS1 is for version 7.2 of PS2. I plan to use N2 as a substitute for furan in the simulation, but since the amount of furan is very small, around 3%, it might be absorbed by water; meanwhile, N2 will escape from the top of the tower. Those who have conducted similar simulations can share their insights with me.
I’ve been struggling with this for a long time; waiting for an expert
Furan is insoluble in water; I treat it as a Henry component like H2, N2, etc. The problem is that Aspen lacks Henry constants
If phase equilibrium data for furan and water are available, one can perform a Henry’s law regression by themselves. But I found that there doesn’t seem to be much data for this system.
There’s only one option left – conduct experiments to find out
I think the same way, but I can’t find any data :(