Dag A. Eimer
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View article: Viscosity Measurement and Correlation of Unloaded and CO<sub>2</sub>-Loaded Aqueous Blend of Monoethanolamine and Piperazine
Viscosity Measurement and Correlation of Unloaded and CO<sub>2</sub>-Loaded Aqueous Blend of Monoethanolamine and Piperazine Open
This work provides new viscosity data of unloaded and partially carbonated aqueous monoethanolamine-piperazine (MEA-PZ) solutions at temperatures between 303.15 and 373.15 K and at a N2 pressure of 400 kPa. In both cases, the viscosity of …
View article: Viscosity Measurement and Correlation of Unloaded and CO<sub>2</sub>-Loaded Aqueous Solutions of <i>N</i>-Methyldiethanolamine + 2-Amino-2-methyl-1-propanol
Viscosity Measurement and Correlation of Unloaded and CO<sub>2</sub>-Loaded Aqueous Solutions of <i>N</i>-Methyldiethanolamine + 2-Amino-2-methyl-1-propanol Open
This work contributes to new and complementary experimental viscosity data for blended amine mixtures of aqueous N-methyldiethanolamine + 2-amino-2-methyl-1-propanol (MDEA + AMP) solutions with and without CO2 at different temperatures and…
View article: Density, viscosity and free energy of activation for viscous flow of CO2 loaded 2-amino-2-methyl-1-propanol (AMP), monoethanol amine (MEA) and H2O mixtures
Density, viscosity and free energy of activation for viscous flow of CO2 loaded 2-amino-2-methyl-1-propanol (AMP), monoethanol amine (MEA) and H2O mixtures Open
This work presents an experimental study of densities and viscosities of aqueous AMP (2-amino-2-methyl-1-propanol) + MEA (monoethanol amine) + H2O solutions with and without CO2. Amine concentrations were at AMP to MEA mass % ratios of 21/…
View article: Density, Viscosity, and Excess Properties of MDEA + H2O, DMEA + H2O, and DEEA + H2O Mixtures
Density, Viscosity, and Excess Properties of MDEA + H2O, DMEA + H2O, and DEEA + H2O Mixtures Open
This study presents measured density and viscosity of N-methyldiethanolamine (MDEA) + H2O, Dimethylethanolamine (DMEA) + H2O, and Diethylethanolamine (DEEA) + H2O mixtures. The density was measured at amine mass fraction w1 from 0.3 to 1 f…
View article: Artificial Neural Networks (ANNs) for Density and Viscosity Predictions of CO2 Loaded Alkanolamine + H2O Mixtures
Artificial Neural Networks (ANNs) for Density and Viscosity Predictions of CO2 Loaded Alkanolamine + H2O Mixtures Open
The physical properties, like density and viscosity, of alkanolamine + H2O (water) + CO2 (carbon dioxide) mixtures receive a significant amount of attention as they are essential in equipment sizing, mathematical modelling and simulations …
View article: Physical Properties of MEA + Water + CO<sub>2</sub> Mixtures in Postcombustion CO<sub>2</sub> Capture: A Review of Correlations and Experimental Studies
Physical Properties of MEA + Water + CO<sub>2</sub> Mixtures in Postcombustion CO<sub>2</sub> Capture: A Review of Correlations and Experimental Studies Open
The knowledge of physicochemical properties of a mixture of amine, water, and CO 2 is beneficial in evaluating the postcombustion CO 2 capture process and process equipment design. This study reviews the literature of density, viscosity, a…
View article: Density, Viscosity, and Excess Properties of Ternary Aqueous Mixtures of MDEA + MEA, DMEA + MEA, and DEEA + MEA
Density, Viscosity, and Excess Properties of Ternary Aqueous Mixtures of MDEA + MEA, DMEA + MEA, and DEEA + MEA Open
This study presents the measured densities and viscosities of three ternary aqueous mixtures of tertiary and primary amines. The tertiary amines of n-methyldiethanolamine (MDEA), dimethylethanolamine (DMEA), diethylethanolamine (DEEA), and…
View article: Density, Viscosity and Free Energy of Activation for Viscous Flow of Monoethanol Amine (1) + H2O (2) + CO2 (3) Mixtures
Density, Viscosity and Free Energy of Activation for Viscous Flow of Monoethanol Amine (1) + H2O (2) + CO2 (3) Mixtures Open
Densities and viscosities of aqueous monoethanol amine (MEA) and CO2-loaded aqueous MEA are highly relevant in engineering calculations to perform process design and simulations. Density and viscosity of the aqueous MEA were measured in th…
View article: Ultrasound intensify CO2 desorption from pressurized loaded monoethanolamine solutions. II. Optimization and cost estimation
Ultrasound intensify CO2 desorption from pressurized loaded monoethanolamine solutions. II. Optimization and cost estimation Open
Optimization and cost estimation were performed for the use of ultrasound for intensifying CO2 reboiler stripping from lean monoethanolamine (MEA) aqueous solutions at 1.0 barg. This work was based on typical industrial reboiler operation …
View article: Free Energies of Activation for Viscous Flow of Different Amine Mixtures in Post Combustion CO2 Capture
Free Energies of Activation for Viscous Flow of Different Amine Mixtures in Post Combustion CO2 Capture Open
The viscosity of ternary mixtures of N-methyldiethanol amine (MDEA) + monoethanol amine (MEA) + H2O, Nmethyldiethanol amine (MDEA) + diethanol amine (DEA) + H2O and 2-amino-2-methyl-1-propanol (AMP) + diethanol amine (DEA) + H2O were corre…
View article: High Concentrated Mea Solvent Systems for CO2 Absorption - An FT-NIR and Raman Spectroscopic Investigation
High Concentrated Mea Solvent Systems for CO2 Absorption - An FT-NIR and Raman Spectroscopic Investigation Open
This study investigates the use of Fourier Transform Near-Infrared (FT-NIR) spectroscopy and Raman spectroscopy to monitor the CO2 absorption process when over 65 wt % concentrated monoethanolamine (MEA) solutions are used. Using high conc…
View article: Model uncertainty of interfacial area and mass transfer coefficients in absorption column packings
Model uncertainty of interfacial area and mass transfer coefficients in absorption column packings Open
Uncertainty in model input parameters propagates through the model to make model output imprecision.Here, mathematical models used to calculate interfacial area and mass transfer coefficient for both random and structured packing in a pack…
View article: The Activator Mechanism of Piperazine in Aqueous Methyldiethanolamine Solutions
The Activator Mechanism of Piperazine in Aqueous Methyldiethanolamine Solutions Open
Piperazine (PZ) is added to aqueous methyldiethanolamine (MDEA) solutions to achieve a greater CO2 absorption in CO2 capture technology. It is referred to as "activated MDEA solutions" in the industry. However, does PZ really activate rate…
View article: Ultrasound Enhanced CO2 Stripping from Lean MEA Solution at Pressures from 1 to 2.5 bar(a)
Ultrasound Enhanced CO2 Stripping from Lean MEA Solution at Pressures from 1 to 2.5 bar(a) Open
Ultrasound was introduced to assist CO2 stripping from lean 30 wt% MEA aqueous solutions in a reboiler. The effect of ultrasound on CO2 stripping was investigated at 2.5 bar(a) under two pressure control methods, solenoid operated on/off v…
View article: Mass Transfer Kinetics of CO2 in Loaded Aqueous MEA Solutions
Mass Transfer Kinetics of CO2 in Loaded Aqueous MEA Solutions Open
The kinetic mass transfer between partially loaded MEA aqueous solutions and CO2 were measured in absorption experiments over a temperature range 303.15 – 313.15 K, MEA concentrations 3 M and 5 M, and a partial loading range 0.05 –0.30 mol…
View article: Surface Tension of Alkanolamine Solutions: An Experimentally Based Review
Surface Tension of Alkanolamine Solutions: An Experimentally Based Review Open
Monoethanolamine solutions is one of several chemicals used for the absorption of acid gases since 1930. Physical and chemical properties of these amine solvents have also been studied by various research groups. One of the important therm…