The Effect of CO 2 Loading on the Solubility of Ethane and Propane in Aqueous Alkanolamine Solutions
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide Solubility of ethane and propane in aqueous solutions of N -methyldiethanolamine (MDEA, 25 and 50 wt %), 2-(2-aminoetoxy)ethanol or diglycolamine (DGA, 35 and 52.5 wt %), diethanolamine (DEA, 35 wt %), ethanolamine (MEA, 14.6 wt %), and a mixture of MDEA and piperazine (42.1 wt % MDEA +8 wt % Pz) was measured at temperatures of 298, 333, 353, and 373 K and system pressures of 0.8 MPa for propane and 1.6 MPa for ethane. The effect of CO 2 loading on the solubility of ethane and propane was measured at 333 K for five of the solutions. It is shown that solubility is increased with increasing amine concentration (salting-in effect) and decreased with increasing CO 2 loading (salting-out effect). The salting-in and salting-out ratios are calculated using Henry’s law constants. The results are compared with predictions from the ProMax simulation tool.
Authors: Inna Kim, Mike Hegarty, Andreas Grimstvedt, Taek-Joong Kim
Institution: SINTEF Industry
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
SDG: Climate action
Open Access status: hybrid
Estimated APC paid: $4,500
OpenAlex ID: W4415623803