Kinetics of carbon dioxide removal by aqueous diamines

Bindwal, Ankush B.; Vaidya, Prakash D.; Kenig, Eugeny Y.

doi:10.1016/j.cej.2011.02.074

Cited by 48 publications

(25 citation statements)

References 27 publications

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“…Versteeg and van Swaaij (1988) proposed correlations for D CO 2 ,water and D N 2 O,water , which well match experimental values (Al-Ghawas et al, 1989;Bindwal et al, 2011;Li and Lee, 1996;Mandal et al, 2004;Samanta et al, 2007;Versteeg and van Swaaij, 1988). Experimental data (Samanta et al, 2007; Table 1 -Parameters of the proposed expression for the calculation of density of the liquid solution according to Eqs.…”

Section: Theoretical Basissupporting

confidence: 56%

Physical properties of PZ solution used as a solvent for CO2 removal

Moioli

Pellegrini

2015

Chemical Engineering Research and Design

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Section: Theoretical Basissupporting

confidence: 56%

Physical properties of PZ solution used as a solvent for CO2 removal

Moioli

Pellegrini

2015

Chemical Engineering Research and Design

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“…In our previous study, the CO 2 reactions with two diamines, N-(2-aminoethyl)ethanolamine (AEEA) and piperazine (PZ), were investigated. [2] The present work was undertaken to examine the kinetic characteristics of two polyethyleneamines, viz., ethane-1,2-diamine (or ethylenediamine, EDA) and N-(2-aminoethyl)ethane-1,2-diamine (or diethylenetriamine, DETA).…”

Section: Introductionmentioning

confidence: 99%

Kinetics of carbon dioxide removal by ethylenediamine and diethylenetriamine in aqueous solutions

2014

Self Cite

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The polyethyleneamines ethylenediamine (EDA) and diethylenetriamine (DETA) can be considered as promising CO 2 -capturing solvents, producible from renewable resources. In the present work, kinetics of CO 2 reactions with EDA and DETA was investigated by using a stirred-cell reactor. The molarities of EDA and DETA in the aqueous solutions were varied from 0.1 to 0.4 and 0.1 to 0.5, correspondingly. The observed pseudo-first-order reaction rate constants were measured at 303, 308, and 313 K. The zwitterion and termolecular mechanisms were used to correlate the rate constants. DETA was found to have higher reactivity with CO 2 than EDA. Second-order rate constants for the reactions with EDA and DETA were equal to 15770 and 21480 m 3 /(kmol s) at 303 K. The activation energy values for EDA and DETA were found to be 57.7 and 30.2 kJ/mol, respectively.

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“…Both PZ and PZCOO À were involved as bases for catalyzing the chemical reactions between PZ and CO 2 , and between PZCOO À and CO 2 , implicitly assuming a partial order of 2 for PZ, in agreement with Cullinane (2005). Finally, Bindwal et al (2011) observed that the second-order kinetic constant increases with the PZ concentration. They determined a value of 25.8 m 3 .mol À1 .s À1 at 303 K, which is considerably lower than the one obtained by Bishnoi and Rochelle (2000).…”

Section: Kinetic Constantsmentioning

confidence: 95%

“…Several authors studied the kinetics between CO 2 and PZ (Bishnoi and Rochelle, 2000;Cullinane, 2005;Derks et al, 2006;Dugas, 2009;Bindwal et al, 2011). The main features of these studies are shown in Table 1.…”

Section: Kinetic Constantsmentioning

confidence: 99%

Modeling of the CO₂Absorption in a Wetted Wall Column by Piperazine Solutions

Servia

Laloue

Grandjean

et al. 2014

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Re´sume´-Mode´lisation de l'absorption de CO 2 par des solutions de pipe´razine dans un film tombantDes e´tudes the´oriques et expe´rimentales sur l'absorption re´active du CO 2 dans des solutions aqueuses de PZ mettant en oeuvre un outil expe´rimental de type film tombant sont pre´sente´es. Un mode`le rigoureux d'absorption en deux dimensions, prenant en compte les phe´nome`nes cine´tique, thermodynamique et hydrodynamique, a e´te´de´veloppe´pour simuler l'outil expe´rimental de film tombant. Les principales originalite´s du mode`le, par rapport aux travaux ante´rieurs, consistent dans la prise en compte de la variation de la concentration en CO 2 de la phase gaz en fonction de la hauteur du re´acteur, ainsi que le calcul de l'e´quilibre gaz-liquide par une approche thermodynamique cohe´rente. Un outil expe´rimental de type film tombant a e´te´spe´cialement conc¸u, pour lequel le coefficient de transfert de masse dans la phase gaz a e´te´estime´. Des mesures d'absorption de CO 2 ont e´teé ffectue´es sur des solutions aqueuses de PZ, vierges et charge´es en CO 2 , sur la gamme 298-331 K, et pour des concentrations totales en PZ variant de 0,2 a`1 M. Le mode`le de re´acteur permet de pre´dire les flux d'absorption avec une pre´cision remarquable de 3,2 % AAD, que ce soit dans les solutions vierges ou charge´es. Le gradient de concentration de CO 2 dans la phase gaz ainsi que la re´action de formation du dicarbamate doivent eˆtre pris en compte afin de pre´dire correctement l'absorption du CO 2 dans les solutions aqueuses de PZ charge´es en CO 2 .Abstract -Modeling of the CO 2 Absorption in a Wetted Wall Column by Piperazine SolutionsTheoretical and experimental investigations on the reactive absorption of CO 2 in aqueous solutions of PZ using a wetted wall column are presented. A rigorous two dimensional absorption model, accounting for kinetics, hydrodynamics and thermodynamics, has been developed for a wetted wall column. Major innovative features of the model, compared to previous work, are the account on the variation of the gas-side CO 2 concentration over the reactor height as well as the computation of the gas-liquid equilibrium by a thermodynamically consistent approach. A laboratory-scale wetted wall column was conceived and constructed and the gas-side mass-transfer coefficient was estimated. CO 2 absorption experiments were carried out on unloaded and loaded aqueous solutions of PZ over the range of 298-331 K, and for total PZ concentrations varying from 0.2 to 1 M. The reactor model permitted to predict the absorption fluxes in loaded as well as in unloaded solutions with an excellent accuracy, i.e. 3.2% AAD. In loaded solutions, the gas-side CO 2 concentration gradient, as well as the dicarbamate formation reaction has to be taken into account.

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Kinetics of carbon dioxide removal by aqueous diamines

Cited by 48 publications

References 27 publications

Physical properties of PZ solution used as a solvent for CO2 removal

Physical properties of PZ solution used as a solvent for CO2 removal

Kinetics of carbon dioxide removal by ethylenediamine and diethylenetriamine in aqueous solutions

Modeling of the CO₂Absorption in a Wetted Wall Column by Piperazine Solutions

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Kinetics of carbon dioxide removal by aqueous diamines

Cited by 48 publications

References 27 publications

Physical properties of PZ solution used as a solvent for CO2 removal

Physical properties of PZ solution used as a solvent for CO2 removal

Kinetics of carbon dioxide removal by ethylenediamine and diethylenetriamine in aqueous solutions

Modeling of the CO2Absorption in a Wetted Wall Column by Piperazine Solutions

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Modeling of the CO₂Absorption in a Wetted Wall Column by Piperazine Solutions