Prediction of the Basicity of Aqueous Amine Solutions and the Species Distribution in the Amine−H2O−CO2 System Using the COSMO-RS Method

H Yamada, S Shimizu, H Okabe… - Industrial & …, 2010 - ACS Publications
A conductor-like screening model for real solvents (COSMO-RS) was applied to the study of
the amine− H2O− CO2 system. p K a values for 25 amines including a variety of …

13C NMR Spectroscopy of a Novel Amine Species in the DEAB–CO2–H2O system: VLE Model

H Shi, T Sema, A Naami, Z Liang, R Idem… - Industrial & …, 2012 - ACS Publications
In the present work, ion speciation studies in solutions of the novel amine 4-(diethylamine)-2-
butanol (DEAB), at various CO2 loadings (0–0.8 mol of CO2/mol of amine) and amine …

NMR Studies of Amine Species in MEA−CO2−H2O System: Modification of the Model of Vapor−Liquid Equilibrium (VLE)

G Fan, AGH Wee, R Idem… - Industrial & engineering …, 2009 - ACS Publications
Speciation studies in aqueous monoethanolamine (MEA) solution at different CO2 loadings
have been conducted via nuclear magnetic resonance (NMR) spectroscopy. The results …

Modeling temperature dependency of amine basicity using PCM and SM8T implicit solvation models

M Gupta, EF da Silva, HF Svendsen - The Journal of Physical …, 2012 - ACS Publications
PCM and SM8T continuum solvation models are used to study the temperature dependency
of a set of amines in the temperature range 273–393 K using density functional theoretical …

1D NMR Analysis of a Quaternary MEA–DEAB–CO2–H2O Amine System: Liquid Phase Speciation and Vapor–Liquid Equilibria at CO2 Absorption and Solvent …

H Shi, A Naami, R Idem… - Industrial & engineering …, 2014 - ACS Publications
New procedures were developed for our recently developed 1D NMR calibration method for
quantitative liquid phase speciation analysis of a complex quaternary CO2 loaded blended …

Experimental and modeling studies of bicarbonate forming amines for CO2 capture by NMR spectroscopy and VLE

M Xiao, D Cui, L Zou, Q Yang, H Gao, Z Liang - Separation and Purification …, 2020 - Elsevier
Three tertiary diamines, N, N, N', N'-tetramethyl-1, 2-ethanediamine, N, N, N', N'-tetramethyl-
1, 3-propanediamine and N, N, N', N'-tetramethyl-1, 4-butanediamine, were investigated for …

Effect of steric hindrance on carbon dioxide absorption into new amine solutions: thermodynamic and spectroscopic verification through solubility and NMR analysis

JY Park, SJ Yoon, H Lee - Environmental Science & Technology, 2003 - ACS Publications
Acid gas absorption technology is of great importance in these days for the prevention of
global warming and the resulting worldwide climate change. More efficient process design …

Experimental study on carbamate formation in the AMP–CO2–H2O system at different temperatures

AF Ciftja, A Hartono, HF Svendsen - Chemical engineering science, 2014 - Elsevier
Carbamate formation in the 30 wt% of 2-amino-2-methyl-1-propanol (AMP) system at
different CO 2 loadings and temperatures was studied via nuclear magnetic resonance …

Experimental measurement and Kent-Eisenberg modelling of CO2 solubility in aqueous mixture of 2-amino-2-methyl-1-propanol and hexamethylenediamine

BK Mondal, SS Bandyopadhyay, AN Samanta - Fluid Phase Equilibria, 2017 - Elsevier
In this work, vapour-liquid equilibrium of CO 2 in aqueous mixture of 2-amino-2-methyl-1-
propanol (AMP) and hexamethylenediamine (HMDA) is studied in the temperature and …

Study on carbamate stability in the AMP/CO2/H2O system from 13C-NMR spectroscopy

AF Ciftja, A Hartono, EF da Silva, HF Svendsen - Energy Procedia, 2011 - Elsevier
Qualitative and quantitative 13C NMR studies were performed on 30 wt% aqueous solution
of 2-amino-2-methyl-1-propanol (AMP) with different amount of CO2 at 25° C. The results …