Abstract
Power-to-X (PtX) will play a pivotal role in decarbonizing gas-based
industries by enabling the conversion of renewable electricity into
various forms of energy carriers such as hydrogen and synthetic fuels.
By integrating gas hydrates as a storage medium, PtX can effectively
link renewable energy sources with the gas-based industry, facilitating a
smoother transition toward a low-carbon economy. Hydrogen (H2)
storage is a pressing issue due to its low density and the high costs
of compression and liquefaction. This study explores the potential of
gas hydrate technology for large-scale H2 storage, particularly in blends with natural gas (H2–NG). The research delves into the thermodynamic and kinetic properties of H2–NG
hydrates, demonstrating that gas hydrates could offer a viable
alternative to traditional storage methods. Experimental and simulation
studies indicate that the inclusion of gaseous promoters like methane
(CH4) and propane (C3H8) can enhance the H2
storage capacity within hydrates. The study outlines the formation
conditions and stability of various hydrate structures, emphasizing the
role of promoters in facilitating H2 enclathration. Importantly, the study highlights the practical and feasible pathway for the energy transition by integrating H2
storage into the natural gas infrastructure. The economic analysis
underscores the cost-effectiveness of hydrate-based storage compared to
conventional methods, considering factors such as energy efficiency and
capital expenditure. This study proposes a detailed process for forming,
storing, and transporting H2–NG hydrate pellets,
highlighting the potential for integrating this method into existing
natural gas infrastructures. The findings suggest that, with further
optimization, gas hydrate technology could play a crucial role in the H2 economy, offering an efficient and sustainable solution for H2 storage, thus supporting global efforts toward carbon neutrality and clean energy adoption.
Original language | English |
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Journal | Energy & Fuels |
Volume | 38 |
Issue number | 24 |
Pages (from-to) | 23192–23229 |
ISSN | 0887-0624 |
DOIs | |
Publication status | Published - 2024 |
Keywords
- Carbon neutrality
- Clean energy
- Hydrogen economy
- Hydrogen storage
- Hydrogen-natural gas hydrates
- Gaseous promoters
- Sustainable Development Goals