Experimental Study of CO2 Absorption in Different Blend Solutions as Solvent for CO2 Capture
Nowadays, removal of CO2 as one of the major contributors to global warming using alternative solvents with high CO2 absorption efficiency, is an important industrial operation. In this study, three amines, including 2-methylpiperazine, potassium sarcosinate and potassium lysinate as potential additives, were added to the potassium carbonate solution as a base solvent for CO2 capture. In order to study the absorption performance of CO2 in terms of loading capacity of CO2 and absorption rate, the absorption experiments in a blend of additives with potassium carbonate were carried out using the vapor-liquid equilibrium apparatus at a temperature of 313.15 K, CO2 partial pressures ranging from 0 to 50 kPa and at mole fractions 0.2, 0.3, and 0.4. Furthermore, the performance of CO2 absorption in these blend solutions was compared with pure monoethanolamine and with pure potassium carbonate. Finally, a correlation with good accuracy was developed using the nonlinear regression analysis in order to predict CO2 loading capacity.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1129942Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 901
 Sh. Ma’mun, H. F. Svendsen, K. A. Hoff, O. Juliussen, “Selection of new absorbents for carbon dioxide capture”, Energy Conversion and Management, vol. 48, pp. 251-258, 2007.
 P. Chung, A. N. Soriano, R. B. Leron, M. Li, “Equilibrium solubility of carbon dioxide in the amine solvent system of (triethanolamine + piperazine + water)”, J. Chem. Thermodynamics vol. 42, pp. 802-807, 2010.
 U. E. Aronu, H. F. Svendsen, K. Hoff, “Investigation of amine amino acid salts for carbon dioxide absorption”, International Journal of Greenhouse Gas Control, vol. 4, pp. 771-775, 2010.
 M. Hamzehie, H. Najibi, “CO2 solubility in aqueous solutions of potassium prolinate and (potassium prolinate and 2-amino-2-methyl-1-propanol) as new absorbents”, Journal of Natural Gas Science and Engineering, vol. 34, pp. 356-365, 2016.
 A. Haghtalab, E. Ghahremani, “The solubility measurement and modeling of CO2 in aqueous solution of methyldiethanolaminen+2-amino-2-methyl-1-propanol+piperazine at high pressures”, Fluid Phase Equilibria, vol. 400, pp. 62-75, 2015.
 A. Lee, M. Wolf, N. Kromer, K. A. Mumford, N. Nicholas, S. E. Kentish, G. W. Stevens, “A study of the vapor-liquid equilibrium of CO2 in mixed solutions of potassium carbonate and potassium glycinate”, International Journal of Greenhouse Gas Control, vol. 36, pp. 27-33, 2015.
 D. Kang, S. Park, H. Jo, J. Min, J. Park, “Solubility of CO2 in amino-acid-based solutions of (potassium sarcosinate), (potassium alaninate + piperazine), and (potassium serinate + piperazine)”, J. Chem. Eng. Data, vol. 58, pp. 1787-1791, 2013.
 Sh. Shen, X. Feng, R. Zhao, U. Ghosh, A. Chen, “Kinetic study of carbon dioxide absorption with aqueous potassium carbonate promoted by arginine”, Chemical Engineering Journal, vol. 222, pp. 478-487, 2013.
 R. Muraleedharan, A. Mondal, B. Mandal, “Absorption of carbon dioxide into aqueous blends of 2-amino-2-hydroxymethyl-1,3-propanediol and monoethanolamine”, Separation and Purification Technology, vol. 94, pp. 92-96, 2012.
 S. Mazinani, A. Samsami, A. Jahanmiri, A. Sardarian, “Solubility (at low partial pressures), density, viscosity, and corrosion rate of carbon dioxide in blend solutions of monoethanolamine and sodium glycinate”, J. Chem. Eng. Data, vol. 56, pp. 3163-3168, 2011.
 H. Balsora, M. Mondal, “Solubility of CO2 in an aqueous blend of diethanolamine and trisodium phosphate”, J. Chem. Eng. Data, vol. 56, pp. 4691-4695, 2011.
 Z. Yang, A. Soriano, A. Caparang, M. Li, “Equilibrium solubility of carbon dioxide in (2-amino-2-methyl-1-propanol + piperazine + water)”, J. Chem. Thermodynamics, vol. 42, pp. 659-665, 2010.
 K. Smith, C. Anderson, “Pro-combustion capture of CO2 results from solvent absorption pilot, plant trials using 30 wt% potassium carbonate and boric acid promoted potassium carbonate solvent”. Int. J. Greenh Gas. Con., vol. 10, pp. 64-73, 2012.
 A. Shrier, P. Danckwerts, “Carbon Dioxide Absorption into Amine-Promoted Potash Solutions”, Ind. Eng. Chem. Fundam., vol. 8, pp. 415-423, 1969.
 Y. Kim, J. H. Choi, S. Nam, Y. Yoon, “CO2 absorption capacity using aqueous potassium carbonate with 2-methylpiperazine and piperazine”, J. Ind. Eng. Chem. Vol. 18, pp. 105-110, 2012.
 U. Aronu, E. Hessen, T. Warberg, K. Hoff, H. Svendsen, “Vapor–liquid equilibrium in amino acid salt system: Experiments and modeling”, Chemical Engineering Science vol. 66, pp. 2191-2198, 2011.
 Sh. Shen, Y. Yang, Y. Bian, Y. Zhao, “Kinetics of CO2 Absorption into aqueous basic amino acid salt: potassium salt of lysine solution”, Environ. Sci. Technol., vol. 50, pp 2054-2063, 2016.
 J. Lee, I. Otto, “Equilibrium between carbon dioxide and aqueous monoethanolamine solutions”, J. Appl. Chem. Bio. Techn, vol. 26, pp. 541-549, 1976.
 J.H. Song, J.H. Yoon, H. Lee, K. Lee, “Solubility of carbon dioxide in monoethanolamine + ethylene glycol + water and monoethanolamine + poly(ethyleneglycol) + water”, J. Chem. Eng. Data, vol. 45, pp. 497-499, 1996.
 K. Shen, P. Li, “Solubility of carbon dioxide in aqueous mixtures of monoethanolamine with methyldiethanolamine”, J. Chem. Eng. Data vol. 37, pp. 96-100, 1992.