Process simulation for CO2 capture with the aqueous solution of 1-methylpiperazine and its mixture with piperazine

Carbon dioxide capture with absorption is the main method to reduce CO2 emission. In this article CO2 solubility data were measured and thermodynamic models are established for CO2 capture with a new solvent 1-methylpiperazine (1-MPZ) with piperazine (PZ). Then the simulations are carried out with commercial software to calculate energy consumption of absorption processes with different operating parameters including amine concentration, CO2 partial pressure, regeneration pressure, and the results are compared with the MEA and AMP solvent. The energy consumption with the new solvent 1-MPZ+PZ is smaller than those with MEA by 20%. (C) 2017 The Authors. Published by Elsevier Ltd.