Abstract
New VLE ebulliometric data for binary aqueous 2-amino-2-methyl-1-propanol (AMP) and piperazine (Pz) solutions and ternary aqueous AMP/Pz solutions are reported at different temperatures and concentrations. A proposed combination of titration and a 1H-NMR technique was developed and determination of the composition of the ternary system was successfully carried out. Results show that AMP is more volatile than commercial solvents such as MEA and MDEA whereas Pz is observed to be less volatile than that of MEA and MAPA. Three thermodynamic models (NRTL, Wilson and UNIQUAC) were used to correlate the data and the determined interaction parameters for both the binary and ternary VLE systems are given. New binary interaction parameters for (AMP(1) and Pz(2)) are also proposed. However, the parameters have no statistical significance which indicates that the activity coefficients for the species in the ternary system in general are similar to the activity coefficients obtained from the corresponding binary mixture. More data may be required for ternary VLE estimation, especially at higher amine concentrations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
