Facilitated transport of carbon dioxide through an immobilized liquid membrane of aqueous diethanolamine

Guha, A.; Majumdar, S.; Sirkar, Kamalesh K.

doi:10.1021/ie00106a018

Cited by 58 publications

(42 citation statements)

References 28 publications

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“…The facilitation factors predicted by the present approximate analytical model were compared and tested with the numerical solutions which had been reported by Guha et al (1990) and Davis and Sandall (1993). Guha et al (1990) demonstrated CO 2 facilitation in an immobilized liquid membrane containing 20 wt% diethanolamine solution over a wide range of CO 2 partial pressures.…”

Section: Comparison Of the Model Predictions With Literatures Numericmentioning

confidence: 75%

“…Because of very high permselectivity of facilitated transport membrane in comparison to conventional polymeric membranes on one hand and relatively very low energy consumption with respect to other conventional processes on the other hand, facilitated transport membranes have attracted the attention of many industries and researchers (Schultz et al, 1974;Saha et al, 1977;Niiya and Noble, 1985;Sengupta and Sirkar, 1986;Way et al, 1987;Way and Noble, 1989;Kreulen et al, 1993;flux without carrier or purely molecular diffusive. Many numerical and approximate solutions have been carried out in order to predict the facilitation factor for the transport of a single component facilitated transport in liquid membranes (Ward, 1970;Smith and Quinn, 1979;Kemena et al, 1983;Noble et al, 1986;Basaran et al, 1989;Guha et al, 1990;Dindi et al, 1992;Jemaa and Noble, 1992;Davis and Sandall, 1993;Teramoto, 1994Teramoto, , 1995Teramoto et al, 1996Teramoto et al, , 1997Al-Marzoughi et al, 2002;Morales-Cabrera et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…A + 2B Keq ←→ AB + BH (1) Guha et al (1990) proposed a simulation for facilitated transport of CO 2 through an immobilized liquid membrane containing diethanolamine. They adopted a numerical solution procedure for integration of simplified equations in order to calculate the facilitation factor corresponding to their experimental conditions.…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modelling of CO₂ facilitated transport through liquid membranes containing amines as carrier

Gorji

Kaghazchi

2008

Can J Chem Eng

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An approximate analytical solution for the facilitated transport of carbon dioxide across a liquid membrane containing aqueous primary and secondary amine solutions has been developed in which the reversible reaction A(CO 2 ) + 2B(amine) ⇔ AB(carbamate) + BH(protonated amine) occurs inside the liquid membranes. The current approximate analytical solution predicts the facilitated factor of CO 2 through the membrane and is based on the dimensionless, nonlinear diffusion-reaction transport problem. The approximate analytical solution predicts the facilitation factors for the range from the moderate reaction rate to the equilibrium chemical reaction regime, allowing unequal diffusivities of complexes and carrier and cases of zero and nonzero permeate side solute concentrations. In the present mathematical model, a constant free carrier concentration is assumed throughout the membrane phase. In comparison with the numerically calculated results, the results obtained were found to be in well agreement.On a mis au point une solution analytique approximative pour le transport de gaz carbonique dans une membrane liquide contenant des solutions d'amines primaires et secondaires aqueuses, dans laquelle la réaction réversible A(CO 2 ) + 2B(amine) ⇔ AB(carbamate) + BH(amine protonée) survientà l'intérieur des membranes liquides. La solution analytique approximative actuelle prédit le facteur facilité de CO 2 dans la membrane et repose sur le problème de transport diffusion-réaction adimensionnel non linéaire. La solution analytique approximative prédit les facteurs de facilitation pour la gamme allant de la vitesse de réaction modérée au régime de réaction chimiqueà l'équilibre, ce qui permet des diffusivités inégales des complexes et du transporteur et des cas de concentrations de solutés du côté du perméat nul et non nuls. Dans le présent modèle mathématique, on suppose une concentration de transporteur libre constante dans toute la phase de la membrane. Un bon accord aété trouvé entre ces résultats et les résultats numériques.

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Section: Comparison Of the Model Predictions With Literatures Numericmentioning

confidence: 75%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mathematical modelling of CO₂ facilitated transport through liquid membranes containing amines as carrier

Gorji

Kaghazchi

2008

Can J Chem Eng

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“…The facilitated transport of CO 2 from CO 2 /CH 4 , CO 2 /N 2 and CO 2 /C 2 H 6 mixtures have been investigated using various carrier species such as MEA [8][9][10][11], DEA [11][12][13][14], DIPA [11], EDA [15][16][17], DGA and TGA [7], PZ [18] and carbonate/bicarbonate aqueous/non-aqueous solutions [19][20][21] 1) . Danckwerts [28] described the forward reaction of CO 2 with primary and secondary alkanolamines by using the zwitterion mechanism.…”

Section: Introductionmentioning

confidence: 99%

Selective Removal of Carbon Dioxide from Wet CO₂/H₂ Mixtures via Facilitated Transport Membranes containing Amine Blends as Carriers

2008

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The selective separation of carbon dioxide (CO 2 ) from a wet gaseous mixture of CO 2 /H 2 through facilitated transport membranes containing immobilized aqueous solutions of monoethanolamine (MEA), diethanolamine (DEA), ethylenediamine (EDA) and monoprotonated ethylenediamine (EDAH + ) and their blends was experimentally investigated. The effect of CO 2 partial pressure, amine concentration, feed side pressure and amine species on the CO 2 and H 2 permeances were studied. The CO 2 permeability through amine solution membranes decreased with increasing CO 2 feed partial pressure but the H 2 permeance was almost independent of the H 2 partial pressure. A comparison of experimental results showed that single or blended amines with low viscosity and a moderate equilibrium constant, i.e., large forward and reverse reaction rate of CO 2 -amine, are suitable for effective separation of CO 2 . The permeability of CO 2 generally increased with an increase in amine concentration, although this increase may be compromised by the salting out effect and decrease in diffusivities of species. The results obtained indicated that CO 2 permeance across a variety of amines are in the order of DEA (2 M

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“…4 Although supported liquid membranes and ion-exchange membranes show remarkably high performance, they are unstable. [5][6][7][8] A fixed carrier membrane, in which the carrier is chemically bound, may be unique in providing stability as well as both high permeability and selectivity. In recent years, fixed carrier membranes for CO 2 separation with facilitated transport groups (amine moieties) have been investigated extensively.…”

Section: Introductionmentioning

confidence: 99%

CO₂‐facilitated transport through poly(N‐vinyl‐γ‐sodium aminobutyrate‐co‐sodium acrylate)/polysulfone composite membranes

Wang

Zhang

et al. 2006

J of Applied Polymer Sci

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Poly(N-vinyl-␥-sodium aminobutyrate-cosodium acrylate) (VSA-SA)/polysulfone (PS) composite membranes were prepared for the separation of CO 2 . VSA-SA contained secondary amines and carboxylate ions that could act as carriers for CO 2 . At 20°C and 1.06 atm of feed pressure, a VSA-SA/PS composite membrane displayed a pure CO 2 permeation rate of 6.12 ϫ 10 Ϫ6 cm 3 (STP)/cm 2 s cmHg and a CO 2 /CH 4 ideal selectivity of 524.5. In experiments with a mixed gas of 50 vol % CO 2 and 50 vol % CH 4 , at 20°C and 1.04 atm of feed pressure, the CO 2 permeation rate was 9.2 ϫ 10 Ϫ6 cm 3 (STP)/cm 2 s cmHg, and the selectivity of CO 2 /CH 4 was 46.8. Crosslinkages with metal ions were effective for increasing the selectivity. Both the selectivity of CO 2 over CH 4 and the CO 2 permeation rate had a maximum against the carrier concentration. The high CO 2 permeation rate originated from the facilitated transport mechanism, which was confirmed by Fourier transform infrared with attenuated total reflectance techniques. The performance of the membranes prepared in this work had good stability.

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Facilitated transport of carbon dioxide through an immobilized liquid membrane of aqueous diethanolamine

Cited by 58 publications

References 28 publications

Mathematical modelling of CO₂ facilitated transport through liquid membranes containing amines as carrier

Mathematical modelling of CO₂ facilitated transport through liquid membranes containing amines as carrier

Selective Removal of Carbon Dioxide from Wet CO₂/H₂ Mixtures via Facilitated Transport Membranes containing Amine Blends as Carriers

CO₂‐facilitated transport through poly(N‐vinyl‐γ‐sodium aminobutyrate‐co‐sodium acrylate)/polysulfone composite membranes

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Facilitated transport of carbon dioxide through an immobilized liquid membrane of aqueous diethanolamine

Cited by 58 publications

References 28 publications

Mathematical modelling of CO2 facilitated transport through liquid membranes containing amines as carrier

Mathematical modelling of CO2 facilitated transport through liquid membranes containing amines as carrier

Selective Removal of Carbon Dioxide from Wet CO2/H2 Mixtures via Facilitated Transport Membranes containing Amine Blends as Carriers

CO2‐facilitated transport through poly(N‐vinyl‐γ‐sodium aminobutyrate‐co‐sodium acrylate)/polysulfone composite membranes

Contact Info

Product

Resources

About

Mathematical modelling of CO₂ facilitated transport through liquid membranes containing amines as carrier

Mathematical modelling of CO₂ facilitated transport through liquid membranes containing amines as carrier

Selective Removal of Carbon Dioxide from Wet CO₂/H₂ Mixtures via Facilitated Transport Membranes containing Amine Blends as Carriers

CO₂‐facilitated transport through poly(N‐vinyl‐γ‐sodium aminobutyrate‐co‐sodium acrylate)/polysulfone composite membranes