CO2 absorbed by NaOH in Aspen Plus

In ethylene production, there is a column called caustic column, which is used to absorb the CO2 with NaOH. I applied ELECNRTL for this column and setting convergence->damping leveling to Medium, Maximum iterations to 200. However, it is still hard to converge. By the way, the choice of henry components is also a key, which has a great effect on convergence. Does anyone have any suggestion or references on CO2 absorption with NaOH? Thanks.

hi,,
I have a guide book of CO2 Absorbed by NaOH by Aspenone v.8.0, and I also have a file Aspenone v.8.0.bkp to simulate the CO2 Absorber. If you want it, you can contact me at [email]widhisaputrawijaya@yahoo.co.id[/email] ,,

Best Regards,,
Widhi Saputra,,