Abstract
A N2-CO2 mixture is separated in a rapid pressure swing adsorption apparatus, which consists of single or double adsorbent beds filled with silica gel and operates in the sequence of adsorption, backflow and desorption. Nitrogen-rich gas is produced at the top of the bed, and carbon dioxide-rich gas at the bottom. Carbon dioxide purity of 89.5% and recovery of 70% were obtained in the single-bed apparatus, while purity of 93.5% and recovery of 72.3% were obtained in the double-bed apparatus. The feed in both cases consisted of 81% N2 and 19% CO2.
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Alpay, E., C.N. Kenney, and D.M. Scott, "Simulation of Rapid Pressure Swing Adsorption and Reaction Processes," Chem. Eng. Sci., 48, 3173-3186 (1993).
Alpay, E., C.N. Kenney, and D.M. Scott, "Adsorbent Particle Effects in the Separation of Air by Rapid Pressure Swing Adsorption," Chem. Eng. Sci., 49, 3059-3075 (1994).
Guan, J. and Z. Ye, "Analog Circuit for Simulation of Pressure Swing Adsorption," Chem. Eng. Sci., 45, 3063-3069 (1990a).
Guan, J. and Z. Ye, "Measurement of Gas-Solid Adsorption Equilibria by a Volumetric Method with Two Vessels" (in Chinese), Journal of Chemical Engineering of Chinese Universities, 4, 181-187 (1990b).
Guan, J. and Z. Ye, "Analog Circuit for Simulation of Pressure Swing Adsorption: Kinetic Model," Chem. Eng. Sci., 48, 2821-2823 (1993).
Hart, J. and W.J. Thomas, "Gas Separation by Pulsed Pressure Swing Adsorption," Gas Sep. Purif., 5, 125-133 (1991).
Keller, G.E. and R.L. Jones, "A New Process for Adsorption Separation of Gas Streams," Adsorption and Ion Exchange with Synthetic Zeolites, W.H. Flank (Ed.), pp. 275-286, American Chemical Society, Washington, D.C., 1980.
Pritchard, C.L. and G.K. Simpson, "Design of an Oxygen Concentrator Using the Rapid Pressure Swing Adsorption Principle," Chem. Eng. Res. Des., 64, 467-471 (1986).
Turnock, P.H. and R.H. Kadlec, "Separation of Nitrogen and Methane via Periodic Adsorption," AIChE J., 17, 335-342 (1971).
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Zhang, Z., Guan, J. & Ye, Z. R and D Note: Separation of a Nitrogen-Carbon Dioxide Mixture by Rapid Pressure Swing Adsorption. Adsorption 4, 173–177 (1998). https://doi.org/10.1023/A:1008831320761
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DOI: https://doi.org/10.1023/A:1008831320761