MOFs identified in step of adsorption evaluation (deliverable D2.2) will be subjected to CO2/N2 co-adsorption/regeneration experiments without and in presence of water using VPSA and MBTSA and breakthrough measurements. The influence of water on the MOF performances will be than evaluated (uptake, selectivity, regeneration and thermodynamics).
The selected MOFs (D2.2) under operating conditions defined (D1.2) will be evaluated. This will be performed by using gravimetric/manometric measurements under dry (3-15% CO2 in N2) and under humid conditions (5% H2O, 3/15% CO2 in N2), temperature and pressure relevant (1 atm, 40°C and 80°C) to the adsorption processes and by breakthrough curve measurement under dry conditions. For each selected MOF, these measurements will include the estimation of the working capacity (adsorption isotherms), the selectivity, the performance stability (adsorption cycles), the impact of water presence, the regeneration ability (desorption tests at different temperatures). The impact of water presence will be specifically studied to evaluate effect on adsorption performances linked to the nature/structure of the MOF. This experimental effort will be coupled stepwise with Grand Canonical Monte Carlo (GCMC) to gain more insight into the co-adsorption at the thermodynamics level and to confirm the experimental trend.