On the use of Ionic Liquids for CO2 Capturing
Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 32769
On the use of Ionic Liquids for CO2 Capturing

Authors: Emad Ali, Inas Alnashef, Abdelhamid Ajbar, Mohamed HadjKali, Sarwono Mulyono

Abstract:

In this work, ionic liquids (ILs) for CO2 capturing in typical absorption/stripper process are considered. The use of ionic liquids is considered to be cost-effective because it requires less energy for solvent recovery compared to other conventional processes. A mathematical model is developed for the process based on Peng-Robinson (PR) equation of state (EoS) which is validated with experimental data for various solutions involving CO2. The model is utilized to study the sorbent and energy demand for three types of ILs at specific CO2 capturing rates. The energy demand is manifested by the vapor-liquid equilibrium temperature necessary to remove the captured CO2 from the used solvent in the regeneration step. It is found that higher recovery temperature is required for solvents with higher solubility coefficient. For all ILs, the temperature requirement is less than that required by the typical monoethanolamine (MEA) solvent. The effect of the CO2 loading in the sorbent stream on the process performance is also examined.

Keywords: Ionic liquid, CO2 capturing, CO2 solubility, Vaporliquid equilibrium.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1333546

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2646

References:


[1] A. Yamasaki, "An Overview of CO2 Mitigation Options for Global Warming - Emphasizing CO2 Sequestration Options." Journal of Chemical Engineering of Japan, 36(4): 2003, 361-375.
[2] S. M. Cohen, H. L. Chalmers, M. E. Webber and C. W. King, "Comparing post-combustion CO2 capture operation at retrofitted coalfired power plants in the Texas and Great Britain electric grids", Environmental Research Letter, 6, 2011, 1-14.
[3] C. B. Tarun, E. Croiset, P. L. Douglas, M. Gupta, M. H. M. Chowdhury, "Techno-economic study of CO2 capture from natural gas based hydrogen plants", Inter j of greenhouse gas control 1, 2007, 55-61.
[4] N. Dave, T. Do, G. Puxty, R. Rowland, P.H.M. Feron and M. I. Attalla, "CO2 capture by aqueous amines and aqueous ammonia- A Comparison", Energy Procedia, 1, 2009, 949-954.
[5] N. Rodriguez, S. Mussati, N. Scenna, "Optimization of Post-Combustion CO2 Process Using DEA-MDEA Mixtures", Chemical Engineering Research and Design, 89, 2011, 1763-1773.
[6] M. Mofarhi, Y. Khojasteh, H. Khaledi, A. Farahnak, "Design of CO2 Absorption Plant for Recovery of CO2 for Flue Gases of Gas Turbine", Energy, 33, 2008, 1311-1319.
[7] M. Abu-Zahra, L H Schneides, J P Niederer, P H Feron, G F Versteeg, "CO2 Capture from power plants Part I, parametric study of the technical performance based on monoethanolamine", Int. j of green house gas control, 1, 2007, 37-46.
[8] M. K. Hanne and G. T. Rochelle, "Effects of the temperature bulge in CO2 absorption from flue gas by aqueous monoethanolamine", Industrial Engineering Chemistry Research, 47, 2008, 867-875.
[9] B. R. Anand, E. S. Rubin, D. W. Keith, and M. G. Morgan, "Evaluation of potential cost reductions from improved amine-based CO2 capture systems", Energy Policy, 34, 2006, 3765-3772.
[10] J. Huang, and T. Ruther, "Why are Ionic Liquids Attractive for CO2 Absorption? An Overview", Aust J of Chemistry, 62, 2006, 298-308.
[11] D. Peng, D.B. Robinson, "A New Two-Constant Equation of State", Industrial Engineering Chemistry Fundamental,15(1), 1876, 59-64.
[12] A. H. Harvey, "Application of Molecular Modeling to Vapor-Liquid Equilibrium of Water with Synthesis Gas", 15th Inter Conference on the Properties of Water and Steam, Berlin, Sep 8-11, 2008.
[13] X. C. Tombokan, "Ternary Phase Equilibrium of the Sclareol-Ethyl Lactate-CO2 System and its Application in the Extraction and Isolation of Sclareol from Clary Sage", PhD dissertation 2008, North Carolina State University, USA.
[14] T. Greer, "Modeling and Simulation of Post Combustion CO2 Capturing", Msc thesis 2008, Telemark University College, Norway.
[15] E. O. Lars, "Aspen HYSYS Simulation of CO2 Removal by Amine Absorption from a Gas Based Power Plant", The 48th Scandinavian Conference on Simulation and Modeling, G├©teborg, Oct 30-31st, 2007.
[16] S. L. Sandler, Chemical and Engineering Thermodynamics, 3rd Edition. John Wiley and sons INC., 1999.
[17] Z. Nasri and H. Binous, "Applications of the Peng-Robinson Equation of State using MATLAB", Chem Eng Education, 43(2), 2009, 1-10.
[18] J.O. Valderrama, L.A.; Forero, R.E. Rojas, "Critical Properties and Normal Boiling Temperature of Ionic Liquids. Update and a New Consistency Test." Ind. Eng. Chem. Res., 51 (22), 2012 7838-7844.
[19] J. Yim, H. N. Song, B. Lee, J. S. Lim; "High-pressure phase behavior of binary mixtures containing ionic liquid (HMP)(Tf2N), (OMP)(Tf2N) and carbon dioxide", Fluid Phase Equilibrium, 308, 2011, 147- 152.
[20] T. Greer, A. Bedelbayev, J. Igreja, J. Gomrz, B. Lie, "A dynamic model for the de-absorption of carbon dioxide from monoethanolamine solution", The 49th Scandinavian Conference on Simulation and Modeling (SIMS2008), Oslo University college, Oct 7-8, 2008.