Measurement and Correlation of Vapor–Liquid Equilibrium of Mixtures of 1,2-Propanediol or 1,4-Butanediol + 1,8-Diazabicyclo(5.4.0)undec-7-ene at 30 kPa

Camilla Barbieri, Valentina Schiattarella, Stefania Moioli (), Laura A. Pellegrini, Giacomo Filippini, Alberto R. de Angelis and Gianluca Fiori
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Camilla Barbieri: GASP, Group on Advanced Separation Processes & GAS Processing, Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy
Valentina Schiattarella: GASP, Group on Advanced Separation Processes & GAS Processing, Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy
Stefania Moioli: GASP, Group on Advanced Separation Processes & GAS Processing, Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy
Laura A. Pellegrini: GASP, Group on Advanced Separation Processes & GAS Processing, Dipartimento di Chimica, Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy
Giacomo Filippini: Eni S.p.A. Research and Technological Innovation Department, Via F. Maritano 26, I-20097 San Donato Milanese, Italy
Alberto R. de Angelis: Eni S.p.A. Research and Technological Innovation Department, Via F. Maritano 26, I-20097 San Donato Milanese, Italy
Gianluca Fiori: Eni S.p.A. Research and Technological Innovation Department, Via F. Maritano 26, I-20097 San Donato Milanese, Italy

Clean Technol., 2024, vol. 7, issue 1, 1-15

Abstract: In this study, vapor–liquid equilibrium (VLE) experimental data were measured for two binary solvents based on 1,8-diazabicyclo(5.4.0)undec-7-ene (DBU), which can be used as a new CO 2 -binding organic liquids (CO 2 -BOLs) solvent. No experimental data are available in the literature and are fundamental to determine whether the considered mixtures are suitable to be possible alternatives to traditional amine solutions for CO 2 removal. The bubble point data of 1,2-propanediol+1,8-diazabicyclo(5.4.0)undec-7-ene (DBU) and 1,4-butanediol+DBU mixtures were measured at 30 kPa. The experimental determination was carried out in an all-glass dynamic recirculation still at the Process Thermodynamics laboratory (PT lab) of Politecnico di Milano. The thermodynamic modeling of the VLE behavior of two DBU-based mixtures was performed considering the NRTL, the UNIQUAC, and the Wilson models, and binary interaction parameters of the NRTL activity coefficients model were regressed on the basis of the measured experimental data.

Keywords: CO 2 -BOLs; DBU; VLE data; PT lab (search for similar items in EconPapers)
JEL-codes: Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2024
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