CO<sub>2</sub>absorption into w/o emulsion with aqueous amine liquid droplets

The chemical absorption rate of carbon dioxide with diethanoamine was measured in such nonaqueous solvents as methanol, ethanol, n-propanol, n-butanol, ethylene glycol, propylene glycol, and propylene carbonate, and in water at 298 K and 101.3 kPa using a semibatch stirred tank with a plane gas-liquid interface. The overall reaction rate constant obtained under the condition of fast reaction regime from the measured rate of absorption was used to get the elementary reaction rate constants in complicated reactions represented by reaction mechanism of carbamate formation and the order of overall reaction of CO 2 with amine. Correlation between the elementary reaction rate constant and the solubility parameter of the solvent was presented.

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“…The apparatus and the experimental procedure are the same as those described by Park et al (22). Purity of both CO 2 and N 2 was more than 99.9%.…”

Section: Theorymentioning

confidence: 99%

Reaction Kinetics of Carbon Dioxide with Diethanolamine in Polar Organic Solvents

Park

Lee

Choi

et al. 2005

Separation Science and Technology

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“…6, increasing the dimensionless parameter, M, which is a major parameter, increasing the enhancement factor. [9] Meanwhile, a decrease of k L makes R Ao decrease, as shown in Fig. 7.…”

Section: Park and Sohn 2342mentioning

confidence: 89%

“…(7) and (8), and then the value of E f is obtained from Eq. (9). If the concentration of B in the droplets, c B , is constant, the value of E f can be obtained from the exact solution of Eq.…”

Section: Park and Sohn 2326mentioning

confidence: 99%

“…From the mass of CO 2 dissolved in the emulsion and the known volume of emulsion in the saturator, the solubility of CO 2 , C Ai , was calculated. The experimental procedure to get the solubility of CO 2 was duplicated that as reported in published research [9] in detail.…”

Section: In Emulsionmentioning

confidence: 99%

“…The w/o type emulsion made from benzene solution of PB and PIB and water was made by the same procedure as those reported elsewhere [9] by adding Tween 80 (Aldrich Chem. Co., USA) and Arlacel 83 (Aldrich Chem.…”

Section: W/o Emulsionmentioning

confidence: 99%

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Absorption of Carbon Dioxide into Non‐Newtonian Liquid. III. Effect of Chemical Reaction

Park

Sohn

2005

Separation Science and Technology

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Carbon dioxide was absorbed into water-in-oil (w/o) emulsion composed of aqueous diethanolamine (DEA) droplets as a dispersed phase and benzene solutions of polybutene (PB) and polyisobutylene (PIB) as a continuous phase in a flat-stirred vessel to investigate the effect of nonNewtonian rheological behavior on the rate of chemical absorption of CO 2 , where the reaction between CO 2 and DEA in the aqueous phase was assumed to be a pseudo-first-order reaction. The liquid-side-masstransfer coefficient, k L , which was obtained from the dimensionless empirical equation containing the properties of pseudoplasticity of the non-Newtonian liquid, was used to estimate the enhancement factor due to chemical reaction. It was expressed that PIB with elastic property 2323 accelerated the rate of chemical absorption of CO 2 by the comparison of k L in the non-Newtonian liquid with that in the Newtonian liquid.

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Preparation and Characterization of W/O Emulsion Liquid Membrane Containing Diethanolamine (DEA) for Carbon Dioxide Separation from Gas Mixtures

Kamarudin

Bhatti

2012

Sustainable Membrane Technology for Energy, Water, and Environment

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CO₂absorption into w/o emulsion with aqueous amine liquid droplets

Cited by 21 publications

References 18 publications

Reaction Kinetics of Carbon Dioxide with Diethanolamine in Polar Organic Solvents

Reaction Kinetics of Carbon Dioxide with Diethanolamine in Polar Organic Solvents

Absorption of Carbon Dioxide into Non‐Newtonian Liquid. III. Effect of Chemical Reaction

Preparation and Characterization of W/O Emulsion Liquid Membrane Containing Diethanolamine (DEA) for Carbon Dioxide Separation from Gas Mixtures

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CO2absorption into w/o emulsion with aqueous amine liquid droplets

Cited by 21 publications

References 18 publications

Reaction Kinetics of Carbon Dioxide with Diethanolamine in Polar Organic Solvents

Reaction Kinetics of Carbon Dioxide with Diethanolamine in Polar Organic Solvents

Absorption of Carbon Dioxide into Non‐Newtonian Liquid. III. Effect of Chemical Reaction

Preparation and Characterization of W/O Emulsion Liquid Membrane Containing Diethanolamine (DEA) for Carbon Dioxide Separation from Gas Mixtures

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Product

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CO₂absorption into w/o emulsion with aqueous amine liquid droplets