Shahid, Muhammad Zubair, Farooqi, Ahmad Salam, Hossain, Mohammad Mozahar et Nemitallah, Medhat Ahmed. 2025. « Hydrogen production with CO2 capture: A thermodynamic analysis of sorption enhanced WGS reaction using Li4SiO4/MgO sorbent ». Communication lors de la conférence : CSME-CFDSC-CSR 2025 International Congress (Montreal, QC, Canada, May 25-28, 2025).
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Résumé
Hydrogen is primarily produced from methane reforming and coal gasification, but these processes generate significant CO₂ emissions. The sorption-enhanced water-gas shift (SE-WGS) reaction is a promising technology that enables in-situ CO₂ capture during methane reforming while enhancing H₂ production through equilibrium shifts. The choice of sorbent plays a critical role in the performance of the SE-WGS reaction. This study evaluates different Li4SiO4/MgO sorbent combinations in a WGS reaction environment over a pressure range of 1–40 bar using the Gibbs free energy minimization method to assess CO2 removal efficiency, CO conversion, H₂ yield, and sorbent regeneration enthalpy. The results indicate that increasing the Li4SiO4 concentration in the sorbent improves CO2 removal efficiency, CO conversion, but also increases the energy required for sorbent regeneration. Therefore, an optimal Li4SiO4/MgO ratio was determined to maximize CO conversion while minimizing energy consumption. The study found that a sorbent composition of 30 mol% Li4SiO4 in the Li4SiO4/MgO mixture is optimal for achieving maximum CO conversion with minimal sorbent regeneration energy requirements.
| Type de document: | Communication (Communication) |
|---|---|
| Informations complémentaires: | Progress in Canadian Mechanical Engineering, Volume 8. Co-chairs: Lucas A. Hof, Giuseppe Di Labbio, Antoine Tahan, Marlène Sanjosé, Sébastien Lalonde and Nicole R. Demarquette. |
| Date de dépôt: | 08 déc. 2025 16:13 |
| Dernière modification: | 18 déc. 2025 14:31 |
| URI: | https://espace2.etsmtl.ca/id/eprint/32106 |
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