Dry reforming of methane over embedded Ni nanoparticles in CeZrO2: Effect of Ce/Zr ratio and H2O addition

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 71, P. 1151 - 1163

Published: May 25, 2024

Language: Английский

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It is not the same green: A comparative LCA study of green hydrogen supply network pathways

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: unknown

Published: July 1, 2024

Green hydrogen (H2), a promising clean energy source garnering increasing attention worldwide, can be derived through various pathways, resulting in differing levels of greenhouse gas emissions. Notably, H2 production utilize different methods, such as integrating standard photovoltaic panels, thermal photovoltaic, or concentrated collectors with electrolyzers. Furthermore, it conditioned to states carriers, including liquefied H2, compressed ammonia, and methanol, stored transported using methods. This paper employs the Life Cycle Assessment methodology compare 18 green pathways provide recommendations for greening supply chain. The findings indicate that pathway utilizing panels electricity generation compression conditioning transportation stages exhibits lowest environmental impact, emitting only 2.67 kg CO2 per H2.

Language: Английский

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Hydrogen-rich syngas derived from smouldering biomass and hydrocarbon wastes

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 72, P. 839 - 849

Published: June 1, 2024

Smouldering has recently been developed as a cost effective and energy efficient technology for challenging wastes. These systems are often used to eliminate environmental liabilities, only minimal work explored their use generating useful by-products. This study addressed this research gap demonstrated that applied smouldering can be tuned favour hydrogen production. Calcium oxide steam were added the system, which completely treated woody biomass coal tar, while producing hydrogen. The maximum concentration achieved in system was 33.7%, resulting net positive syngas. Results suggest both heterogenous gasification water gas shift key mechanisms behind formation. results indicate new method sustainably produce hydrogen-rich syngas from

Language: Английский

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Enhancing hydrogen desorption in MgH2: A DFT study on the effects of copper and zinc doping

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 87, P. 1474 - 1479

Published: Sept. 16, 2024

Language: Английский

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