A Comparison between the Product-Refill and the Equalization Oxygen Pressure Swing Adsorption Processes

Authors

  • Zaid Adnan Abdel-Rahman Chemical Engineering Department, College of Engineering, Tikrit University, Iraq

DOI:

https://doi.org/10.31699/IJCPE.2018.1.8

Keywords:

Oxygen production, PSA, process design, product refill, equalization

Abstract

This work presents a design for a pressure swing adsorption process (PSA) to separate oxygen from air with approximately 95% purity, suitable for different numbers of columns and arrangements. The product refill PSA process was found to perform 33% better (weight of zeolite required or productivity) than the pressure equalization process. The design is based on the adsorption equilibrium of a binary mixture of O2 and N2 for two of the most commonly used adsorbents, 5A & 13X, and extension from a single column approach. Zeolite 13X was found to perform 6% better than zeolite 5A. The most effective variables were determined to be the adsorption step time and the operational pressure. Increasing the adsorption step time from 1 to 5 minutes decreased the performance by approximately 5 times. Increasing the pressure from 2 to 6 bars increased the performance by approximately 3 times.

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Published

2018-03-30

How to Cite

Abdel-Rahman, Z. A. (2018). A Comparison between the Product-Refill and the Equalization Oxygen Pressure Swing Adsorption Processes. Iraqi Journal of Chemical and Petroleum Engineering, 19(1), 61-66. https://doi.org/10.31699/IJCPE.2018.1.8

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