Experimental, Kinetics and Isotherm Modeling of Carbon Dioxide Adsorption with 13X Zeolite in a fixed bed column

Document Type: Full article

Authors

1 Department of Chemical Engineering, Tehran North Branch, Islamic Azad University, Tehran, Iran

2 School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Tehran, Iran

3 Department of Chemical Engineering, Tehran South Branch, Islamic Azad University, Tehran, Iran

Abstract

In this work, zeolite 13X with porosity structure has been used as an adsorbent for adsorption of CO2 flue gas. The effect of operating conditions including pressure and time on adsorption capacity were investigated. The experiments conditions are constant temperature, the range of pressure 1 - 9 bar and the registration of adsorption capacity with passing of time. Experimental data were adjusted with adsorption isotherm models including two and three parameters isotherm. Also the process was studied in terms of kinetic models and after the implementation of the experimental data with kinetic models, the speed of this process equations were obtained. The best kinetic model for this process was selected first order equation. The results showed that adsorption capacity of 13X is 71.5 mg/g at pressure of 8 bars. Also the result indicate that 13x has high capacity at low pressures. With regard to achieved results for adsorption isotherm modeling, the adsorption isotherm followed of the three-parameter and among three-parameter models, Toth isotherm can be interpreted the process. Also the results of the fixed bed indicate a very high adsorbent selectivity to carbon dioxide adsorption and there was little oxygen and nitrogen adsorption.

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[1]      Chang, F., Zhou, J., Chen, P., Chen, Y., Jia, H., Saad, S. M. I., Gao, Y., Cao, X. and Zhen, T, “Microporous and mesoporous materials for gas storage and separation: A review”, Asia-Pac. J. Chem. Eng., 8, 618 (2013).

[2]      Kamiuto, K. and Ihara, E. K., “CO2 adsorption equilibria of the honeycomb zeolite beds”, Appl. Energy, 6, 285 (2001).

[3]      Cavenati, S., Grande Carlos, A. and Rodrigues, A., “Adsorption equilibrium of methane, carbon dioxide and nitrogen on zeolite 13X at high pressures”, J. Chem. Eng. Data, 49, 1095 (2004).

[4]      Siriwardane, R. V., Shen, M. S. and Fisher, E. P., “Adsorption of CO2 on zeolites at moderate temperatures”, Ener. Fuels, 19 (3), 1153 (2005).

[5]      Llano-Restrepo, M., “Accurate correlation, structural interpretation and thermochemistry of equilibrium adsorption isotherms of carbon dioxide in zeolite NaX by means of the GSTA model”, Fluid Phase Equilb., 293, 225 (2010).

[6]      Dantas, T. L. P., Luna, F. M. T., Silva, Jr. I. J., Torres, A. E. B. and de Azeved, D. C. S., “Modeling of the mixed-bed adsorption of CO2 and CO2/N2 mixture on zeolite 13X”, Brazil J. Chem. Eng., 28, 533 (2011).

[7]      Khambhaty, Y., Mody, K., Basha, S. and Jha, B., “Kinetics, equilibrium and thermodynamic studies on biosorption of hexavalent chromium by dead fungal biomass of marine Aspergillus niger”, Chem. Eng. J., 145, 489 (2009).

[8]      Dada, A. O., Olalekan, A. P., Olatunya, A. M., Dada, O., “Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms studies of equilibrium sorption of Zn2+ unto phosphoric acid modified rice husk”, IOSR-JAC, 3 (1), 2278 (2012).

[9]      Seyed Hosseini, N. and Fatemi, Sh., “Experimental study and adsorption modeling of COD reduction by activated carbon for wastewater treatment of oil refinery”, Iran. J. Chem. Chem. Eng., 32 (3), 81 (2013).

[10]  Guixia, Z., Xilin, W., Xiaoli, T. and Xiangke, W., “Sorption of heavy metal ions from aqueous solutions”, T. O. Colloid S. J., 4, 19 (2011).

[11]  Foo, K. Y. and Hameed, B. H., “Insights into the modeling of adsorption isotherm systems”, Chem. Eng. J., 156, 2 (2010).

[12]  Tay, Ch., Liew, H. H., Yin, Ch. Y., Abdul-Talib, S., Surif, S., Suhaimi, A. A., Yong, S. K., “Biosorption of cadmium ions using Pleurotus ostreatus: Growth kinetics, isotherm study and biosorption mechanism”, Korean J. Chem. Eng., 28, 825 (2011).

[13]  Modarress, H. and Allafkari, L., “Adsorption of bovine serum albumin onto hydroxylapatite: Theoretical modeling and measurements”, Iran. J. Chem. Chem. Eng., 29 (4), 125 (2010).

[14]  Qiu, H. L. v. L, Pan, B., Zhang, Q. -J., Zhang, W. -M. and Zhang, Q. -X., “Critical review in adsorption kinetic models”, J. Zhejiang Univ. Sci., 10 (5), 716 (2009).

[15]  AX carbon dioxide detector (user manual)-15 Ellerbeck Court, Stokelsey Business Park, North Yorkshire. TS9 5PT, UK, (www.analokes.net), (2015).

[16]  Yuh-Shan, H., “Review of second-order models for adsorption systems”, Journal of Hazardous Materials B136, 681 (2006).