Control for Hydrogen Recovery in Pressuring Swing Adsorption System Modeling
Authors:
Abba Ibrahim Zannah, Srikanth Rachakonda, Abdulhalim Musa Abubakar, Sijan Devkota, Eze Cordelia Nneka
Addresses:
1Department
of Chemical Engineering, Faculty of Engineering, University of Maiduguri,
Maiduguri, Borno State, Nigeria.2Department
of Chemical Engineering, Anil Neerukonda Institute of Technology and Sciences,
Sangivalasa, A.P, India.3Department
of Chemical Engineering, Faculty of Engineering, Modibbo Adama University,
Adamawa State, Nigeria.4Department
of Chemical Engineering, Chungbuk National University, Cheongju, Chungbuk,
South Korea.5Department
of Chemical Engineering, Faculty of Engineering, Chukwuemeka Odumegwu Ojukwu
University, Anambra State,
Nigeria.
zannahabba154@gmail.com1, rskanth.krmr@gmail.com2,
abdulhalim@mau.edu.ng3, sijandevkota2054@gmail.com4,
cordy4live@gmail.com5
Pressure swing adsorption (PSA) process can be used to purify and isolate various gases from complex mixtures. Creating ultra-pure (99.999+ %) hydrogen (H2) is its primary use in industries. This is accomplished by applying various pressures on adsorbents with varying loading capacities. The PSA system designed in this work, was more of an experimental basis, despite the huge development in real-world uses of this technology. Because of high adsorption, the flow rate in a realistic model of a PSA cycle varies. However, due to adiabatic temperature conditions, the heat impact must also be considered. As part of this study, a PSA cycle for H2 purification was modelled and simulated. With this goal in mind, a two-bed, six-cycle system was considered, with activated carbon (AC) and zeolite layers in each bed. CO2, H2, CH4, CO, and N2 were all present in the feed stream, as is commonplace when purifying H2. The PSA process simulation indicated that the concentration of H2 went from 75.7% (vol%) in the feed to 99.996% (vol%) in the final product including CO2, H2, CH4, CO, N2.
Keywords: Hydrogen Production; Pressure Swing Adsorption; Zeolite; Skarstrom Cycle; Activated Carbon; Gas Purification; Blown down Bed; Modeling and Simulation.
Received on: 05/11/2022, Revised on: 12/12/2022, Accepted on: 24/02/2023, Published on: 02/03/2023
FMDB Transactions on Sustainable Energy Sequence, 2023 Vol. 1 No. 1, Pages: 1-10
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