Thermodynamic description of the CO2-AMP-H2O system by ENRTL-RK model

Aqueous MonoEthanolAmine (MEA) solution is a well-established benchmark solvent for capturing CO2, however it is characterized by some relevant drawbacks that make its substitution with other solvents an important target to be achieved for Carbon Capture, Storage and Utilization. 2-Amino-2-Methyl-1-Propanol (AMP) is a sterically hindered primary amine which is being under consideration because of some advantages as those related to its high loading capacity and high thermal stability. This work focuses on studying of the CO2 chemical absorption in an aqueous solvent containing AMP. ASPEN Plus® process simulator has been used. After determining the thermodynamic method and the reaction set to be employed, the obtained model has been used for the simulation of a pilot plant for validation and has been employed for the study of possible application of the AMP solvent to the upstream CO2 removal of an Integrated Biomass Gasification Combined Cycle (IBGCC).