Optimization of Pressure Swing Adsorption modelling tool for H2 purification

Shell is actively advancing its commitment to Net-Zero Emissions by exploring and investing in low-carbon energy sources, with hydrogen emerging as a promising option for heavy-duty road freight and potentially in shipping, industry, and aviation in the future. Recognizing the efficiency, selectivity, and versatility of Pressure Swing Adsorption (PSA) technology for hydrogen purification, Shell decided to enhance its in-house PSA modelling tool 1.0 through a collaboration with Eindhoven University of Technology (TU/e).
The tool, with an Excel-based front end the backend calculations performed in MATLAB, has been upgraded to offer greater accuracy and flexibility, and enhancing the overall user experience.
The enhancements include the possibility to characterize additional hydrogen-rich feed streams and incorporate new adsorbent materials, to widen the variety of applications. A new model simulates the entire PSA cycle, improving reliability and accuracy by allowing for component tracking and optimization studies.
The tool now offers a Design mode with simplified user input and a Simulation mode for in-depth analysis, along with Sensitivity Analysis functionality that deepen understanding and facilitate optimized PSA unit design.
Testing against vendor data showed the tool's improved reliability, with accurate results for the key performance parameters. Shell's upgraded PSA modelling tool 2.0 offers a robust platform for comprehensive PSA unit analysis. Its increased flexibility and wider application range allow users to explore more variables with confidence, thanks to reliable results and a user-friendly interface.