Development of a Validated Rate-Based Model for CO₂ Absorption in Aqueous 2‑Amino-2-methyl-1-propanol and Piperazine Blends Using Aspen Plus.

ABSTRACT: In this work, we developed a new e-NRTL thermodynamic framework for CO₂ absorption in aqueous mixtures of 2-amino-2-methyl-1-propanol (AMP) and piperazine (PZ) in Aspen Plus. The e-NRTL AMP/PZ/H₂O/CO₂ model was fitted on experimental data covering a range of AMP concentration from 12 to 48 mass % and PZ concentration from 2 to 26 mass %, temperature from 20 to 160 °C and CO₂ loading from 0 to 1.03 molCO2molAMP+molPZ . The model predicts the CO₂ solubility, as partial pressure of CO₂, over aqueous AMP/PZ solutions within an absolute average relative deviation (AARD) of 26.3%, the total pressure of the system with an AARD value of 7.0%, the heat of absorption of CO₂ with an AARD value of 10.2%, and the estimated fre

SUBMITTER: Morlando D 

PROVIDER: S-EPMC12519493 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature