Enabling the reverse water gas shift reaction at high pressure and low temperature towards efficient CO₂ conversion
The reverse water gas shift (RWGS) reaction is a pivotal step for CO₂ valorization, yet it is often constrained by thermodynamic equilibrium and high energy demands. This study investigates a Process Intensification (PI) strategy by shifting the operational window to lower temperatures and elevated...
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| Dokumentumtípus: | Könyv része |
| Megjelent: |
University of Szeged
Szeged
2025
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| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
31 |
| Kulcsszavak: | Környezetkémia, Katalízis kémia, Fizikai kémia |
| Tárgyszavak: | |
| Online Access: | http://acta.bibl.u-szeged.hu/88730 |
| Tartalmi kivonat: | The reverse water gas shift (RWGS) reaction is a pivotal step for CO₂ valorization, yet it is often constrained by thermodynamic equilibrium and high energy demands. This study investigates a Process Intensification (PI) strategy by shifting the operational window to lower temperatures and elevated pressures using a conventional, commercially relevant catalyst: copper supported on γ-alumina (Cu/Al₂O₃) balls. We demonstrate that operating at high pressure significantly enhances the reaction rate and CO₂ conversion of the Cu/Al₂O₃ catalyst at temperatures below 400°C, a range where it traditionally exhibits low activity. The packed bed of catalyst balls, while simple, provides a robust system for evaluating this intensified process. The results indicate that high pressure compensates for the slower kinetics at low temperature, pushing the equilibrium and making the process more efficient. This approach demonstrates that significant process intensification for CO₂ conversion can be achieved not only with novel catalysts but also by strategically re-optimizing process parameters for existing, economically viable catalytic systems. |
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| Terjedelem/Fizikai jellemzők: | 359-360 |
| ISBN: | 978-963-688-078-1 |