I’ve been thinking about this more - haven’t actually tried it - but the surface reaction I’m trying to model is such that the CO2 doesn’t actually form a solid, it remains as a gas when captured in the adsorption sites.
I’m inclined to use CO2(s), ‘s’ as in ‘site’, a reaction with CO2(g) would be similar to the following:
CO2(g) + CO2(s) ->CO2(gs)
Where (g) is gas (s) is site, and (gs) is a filled site. My conceptual issue with regard to how MFiX performs reactions is that I’m unsure how to create CO2(s) and CO2(gs) and get MFiX to accept it.
It seems as though you’re telling me to do exactly that, but without mention of CO2(gs). It’s important because there’s a finite number of CO2(s) in the domain. So do I model CO2(s)/CO2(gs) as an internal value, or do I have to explicitly model them as “materials” (fluid or solid)?
Thanks so far!