Thermo-economic analysis of a novel P2X polygeneration system for hydrogen, ammonia, and methanol production with near-zero emissions
<p dir="ltr">This paper presents a comprehensive thermo-economic analysis of a novel Power-to-X (P2X) polygeneration system designed for the production of hydrogen, ammonia, and methanol with near-zero CO<sub>2</sub> emissions. The system integrates an air separation unit...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , , , |
| منشور في: |
2025
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| الموضوعات: | |
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| الملخص: | <p dir="ltr">This paper presents a comprehensive thermo-economic analysis of a novel Power-to-X (P2X) polygeneration system designed for the production of hydrogen, ammonia, and methanol with near-zero CO<sub>2</sub> emissions. The system integrates an air separation unit (ASU), a direct oxy-combustor (DOC) powered by natural gas, combined with a supercritical carbon dioxide (sCO<sub>2</sub>) power cycle, water electrolyzer (WE), a Haber-Bosch process (HBP), and a methanol production unit (MPU). The system is investigated in four configurations: ASU + DOC-sCO<sub>2</sub> (S1), ASU + DOC-sCO<sub>2</sub> + WE (S2), ASU + DOC-sCO<sub>2</sub> + WE + HBP (S3), and ASU + DOC-sCO<sub>2</sub> + WE + HBP + MPU (S4), each contributing to improve energy efficiency and reduced emissions. Simulation results show that the overall system efficiency reaches 56 %, improving from 45 % to 56 % across different configurations. The system's levelized cost of hydrogen (LCOH) decreases significantly from $1.70/kg to $0.80/kg, and the levelized cost of electricity (LCOE) decreases from 4.30 ¢/kWh to 3.30 ¢/kWh. CO<sub>2</sub> emissions are reduced from 200 gCO<sub>2</sub>/MWe to 145 gCO<sub>2</sub>/MWe, with the CO<sub>2</sub> reduction rate improving from 89 % to 94 %. These results demonstrate the economic viability and environmental sustainability of the proposed P2X system paving the way for industrial decarbonization and large-scale deployment in future energy infrastructures.</p><h2>Other Information</h2><p dir="ltr">Published in: International Journal of Hydrogen Energy<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.ijhydene.2025.150201" target="_blank">https://dx.doi.org/10.1016/j.ijhydene.2025.150201</a></p> |
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