초록 |
Most futuristic studies on 100% renewable energy sources and subsequent power-to-gas/fuel/liquid/X technological developments are based on hydrogen (H2) to mitigate CO2 emissions and climate change. As an energy vector, long-term H2 storage and transportation over long distances restrict its feasibility, mainly due to its low energy density. Liquefaction is a promising option for overcoming these issues, however, requires a large amount of energy. If the H2 itself is used to provide this energy, then 25% to 35% of the initial quantity of H2 is consumed. This talk introduces the major challenges and issues associated with the hydrogen liquefaction processes for its commercialization and attempts to solve the issues inherent to the hydrogen liquefaction industry. The hydrogen liquefaction processes are also assessed multi-dimensionally by assessing the challenges associated with hydrogen liquefaction, configuration modifications, and process. |