Issues with Carbon Capture Absorption process

[Ahnaaf Khan]

I'm currently trying to simulate Carbon Engineering's direct air capture process. I'm using this paper as reference.

Right now, I'm trying to react 2KOH + CO2 -> K2CO3 + H2O using the absorber. In the literature, they state that 63.5 % of CO2 in the incoming flue gas flow is absorbed by the aqueous KOH solution with an absorption column.

My results are way off from expected values and I'm not sure exactly where I can fix it. The model converges.

[Daniel Medeiros]

I'm sorry, but the absorption column doesn't support reactive absorption.

Regards,
Daniel

[Ahnaaf Khan]

Are there any alternatives within DWSIM to simulate my process?

[Daniel Medeiros]

you could try a chemsep column, but I don't know if it supports KOH and K2CO3.

[André Luiz Araújo Vaz]

Hello Daniel, even for MEA solution?