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Iranian Journal of Chemical Engineering، جلد ۱۶، شماره ۱، صفحات ۵۴-۶۴
عنوان فارسی Experimental, Kinetics and Isotherm Modeling of Carbon Dioxide Adsorption with ۱۳X Zeolite in a fixed bed column
چکیده فارسی مقاله 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.
کلیدواژه‌های فارسی مقاله Adsorption،، Carbon dioxide،، Zeolite 13X،، Isotherm،، Kinetic،، Modeling،
عنوان انگلیسی Experimental, Kinetics and Isotherm Modeling of Carbon Dioxide Adsorption with 13X Zeolite in a fixed bed column
چکیده انگلیسی مقاله 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.
کلیدواژه‌های انگلیسی مقاله Adsorption, Carbon dioxide, Zeolite 13X, Isotherm, Kinetic, Modeling
نویسندگان مقاله M. Khajeh Amiri |
Department of Chemical Engineering, Tehran North Branch, Islamic Azad University, Tehran, Iran

A. Ghaemi |
chemical Engineering Department, Iran University of Science and Technology

H. Arjomandi |
Department of Chemical Engineering, Tehran South Branch, Islamic Azad University, Tehran, Iran

نشانی اینترنتی http://www.ijche.com/article_84419_cc3411868dc76579240b52c7a76130ae.pdf
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