NON-ISOTHERMAL ADSORPTION OF NITROGEN-CARBON DIOXIDE MIXTURE IN A FIXED BED OF ZEOLITE-X
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概要
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The binary adsorption of nitrogen and carbon dioxide on zeolite-X was investigated. The adsorption equilibria of pure and binary systems were measured by static methods. In the binary system the equilibrium Selectivity of CO2 over N2 was very high: about 525 at a CO2 mole fraction of 0.14 and a temperature of 15°C. Consequently, N2 can be considered as inert when its mole fraction is less than 0.8. The ideal adsorbed-solution theory (IAST) predicted quite well the binary equilibrium data, while the extended Langmuir isotherm showed a great deviation. The dynamics of fixed-bed adsorption of CO2-N2 gas mixture (CO2 14.86 mole percent) was analyzed by the cell model under non-isothermal conditions, incorporated with binary adsorption equilibria, mass and heat transfer resistances and variation of gas velocity in the bed. The concentration and temperature history curves were determined and compared with the theoretical results. This cell-model with IAST predicted well the dynamic behavior of the adsorption bed.
- 社団法人 化学工学会の論文
- 1994-02-20
著者
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Cho Soon-haeng
Korea Institute Of Energy Research
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Kim Jong-nam
Korea Institute Of Energy Research
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CHUE Kuck-Tack
Korea Institute of Energy Research
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KIM Kwon-Il
Korea Institute of Energy Research
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KIM Jong-Duk
Department of Chem. Eng., Korean Advanced Institute of Science and Technology
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- NON-ISOTHERMAL ADSORPTION OF NITROGEN-CARBON DIOXIDE MIXTURE IN A FIXED BED OF ZEOLITE-X
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