New Model Configuration for Post Combustion Carbon Capture

Arachchige, Udara S.P.R.; Kawan, Dinesh; Melaaen, Morten C.

doi:10.7763/ijmo.2013.v3.231

Cited by 5 publications

(20 citation statements)

References 1 publication

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“…Good corresponding with the literature data [36][37][38][39][40] was observed for aqueous 1 M and 4 M MDEA as shown in Figs. 3-5 on density, viscosity and CO 2 solubility.…”

Section: Validation Of Datasupporting

confidence: 85%

Low pressure solubilities of CO2 in guanidinium trifluoromethanesulfonate–MDEA systems

Sairi¹,

Ghani²,

Aroua³

et al. 2015

Fluid Phase Equilibria

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It is an urgent act to limit greenhouse gas emissions to avoid the harmful effects of climate changes. In this work, the binary and ternary systems of guanidinium trifluoromethanesulfonate ([gua][OTf]) in N-methyldiethanolamine (MDEA) and/or water were examined as alternative solvents for gas treatment process. The thermodynamic properties including density, r, viscosity, h, thermal expansion, a p and physical solubility of CO 2 in the systems were measured as a function of molar composition with a temperature range of 293.2-333.2 K at 100-1000 kPa. The presence of [gua][OTf] accelerates CO 2 absorption process. The present study offers equations of correlation providing a reliable prediction of the binary and ternary systems as a function of concentration. The linear equation, quadratic equation, extended Arhenius equation and Henry's Law equation have been applied to assess the validity of the finding. The CO 2 solubilities in [gua][OTf] systems are found higher compared to other ILs in previous researches. Additionally, ANN modeling of the effective parameters was carried out and the composition of [gua][OTf] was proven as the key factor in maximizing the CO 2 solubility. 2014 Published by Elsevier B.V.

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“…Good corresponding with the literature data [36][37][38][39][40] was observed for aqueous 1 M and 4 M MDEA as shown in Figs. 3-5 on density, viscosity and CO 2 solubility.…”

Section: Validation Of Datasupporting

confidence: 85%

Low pressure solubilities of CO2 in guanidinium trifluoromethanesulfonate–MDEA systems

Sairi¹,

Ghani²,

Aroua³

et al. 2015

Fluid Phase Equilibria

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“…Lines represent the relative expanded uncertainty of our measurements. solutions, the best results were obtained in comparison with Maham et al [30] with an average relative deviation of 1.3% (ten points for comparison) and these values were 3.4% in comparison with Al-Ghawas et al [20] (ten points for comparison) and 3.8% with Aranchchige et al [32] (fourteen points), for MDEA solutions.…”

Section: Methodsmentioning

confidence: 70%

“…A summary of the literature used in figure 5 is given in table 12. Rinker et al [19]; ○ Al-Ghawas et al [20];  Li et al [22];  Paul et al [27]; □ Aranchchige et al [32]; ■ Teng et al [33]; ◊ Bernal-García et al [34] and * Maham et al [35]. Lines represent the relative expanded uncertainty of our measurements.…”

Section: Methodsmentioning

confidence: 80%

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Viscosity and density measurements of aqueous amines at high pressures: MDEA-water and MEA-water mixtures for CO2 capture

Sobrino

Concepción

Gómez-Hernández

et al. 2016

The Journal of Chemical Thermodynamics

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Viscosity and density are thermophysical properties crucial to characterizing any kind of fluid such as aqueous amines. These blends are becoming more and more relevant for their CO 2 capture potential, such that having accurate viscosity and density measurements would prove useful. Densities and viscosities of these mixtures at atmospheric pressure may be found in the literature although it is more difficult to find values at high pressures, these potentially proving interesting when seeking to provide a full description of these fluids. Viscosity and density measurements at high pressures (up to 120 MPa) and at temperatures between 293.15 and 353.15 K of MDEA + water and MEA + water mixtures (both from 10 % to 40 % amine mass fraction) are presented in this work. Density measurements were performed with an Anton Paar DMA HPM densimeter with an expanded uncertainty (k = 2) less than ± 0.7 kg•m-3. A falling body technique was used to measure viscosities at high pressures due to its sturdiness in terms of corrosion. Details of this latter equipment are presented, including calibration using n-dodecane and uncertainty calculations, which give a relative expanded uncertainty (k = 2) of less than ± 2.4 % for the highest viscosity and ± 2.9 % for the lowest.

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“…Among various CCS technologies, chemical absorption by amine solution is a well-established method. ,− Currently, monoethanolamine (MEA, 2-hydroxyethanamine) is widely utilized to extract CO 2 from combustion flue gas. − In this approach, the gas is exchanged with chilled aqueous MEA solution in an absorber tower, whereby CO 2 reacts with MEA to form carbamate . The resulting solution is pumped into a stripper tower where the temperature is increased and the carbamate product is decomposed back to CO 2 and MEA .…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability of Particle-Phase Monoethanolamine Salts

Fan

Dawson

Chen

et al. 2018

Environ. Sci. Technol.

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The use of monoethanolamine (MEA, 2-hydroxyethanamine) for scrubbing of carbon dioxide from combustion flue gases may become the dominant technology for carbon capture in the near future. The widespread implementation of this technology will result in elevated emissions of MEA to the environment that may increase the loading and modify the properties of atmospheric aerosols. We have utilized experimental measurements together with aerosol microphysics calculations to derive thermodynamic properties of several MEA salts, potentially the dominant forms of MEA in atmospheric particles. The stability of the salts was found to depend strongly on the chemical nature of the acid counterpart. The saturation vapor pressures and vaporization enthalpies obtained in this study can be used to evaluate the role of MEA in the aerosol and haze formation, helping to assess impacts of the MEA-based carbon capture technology on air quality and climate change.

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New Model Configuration for Post Combustion Carbon Capture

Cited by 5 publications

References 1 publication

Low pressure solubilities of CO2 in guanidinium trifluoromethanesulfonate–MDEA systems

Low pressure solubilities of CO2 in guanidinium trifluoromethanesulfonate–MDEA systems

Viscosity and density measurements of aqueous amines at high pressures: MDEA-water and MEA-water mixtures for CO2 capture

Thermal Stability of Particle-Phase Monoethanolamine Salts

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