Study of a Four-Bed Pressure Swing Adsorption for Oxygen Separation from Air

This article is presented an experimental and modeling study of a four-bed pressure swing adsorption process using zeolite13X to provide oxygen-enriched air. The binary mixture N2/O2 (79/21 vol %) was used as a feed stream. The effects of purge/feed ratio (P/F), adsorption pressure, cyclic time and product flow rate on product purity and recovery under nonisothermal condition were studied. The adsorption dynamics of process were determined using a mathematical model incorporated mass and energy balances. A Mathlab code using finite difference method was developed to solve the set of coupled differential-algebraic equations, and the simulation results are agreed well with experimental results.

Authors:

• Moghadazadeh Zahra
• Towfighi Jafar
• Mofarahi Masoud

Keywords:

• Pressure swing adsorption (PSA)
• Oxygen
• Zeolite 13X.

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