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Freshwater Supply for Hydrogen Production: An Underestimated Challenges

Abstract

This paper presents a thorough critical literature review aimed at understanding the challenges associated with freshwater supply associated with rapidly growing global hydrogen economies. The review has been prompted by the fact that the hydrogen production projected for 2030 will create at least an additional demand of 2.1 billion cubic meters for freshwater, which needs to be addressed to support sustainable development of emerging hydrogen economies. The key solutions explored by this study include seawater and wastewater treatment methods for large-scale freshwater generation, along with the newly introduced technique of direct seawater-fed electrolysis. Prior research indicates that desalination technologies, including reverse osmosis and membrane distillation, also offer promising avenues for large-scale freshwater production at costs comparable to other desalination techniques. Additionally, low-temperature desalination methods such as membrane distillation could play a significant role in freshwater production for electrolysis, underscoring the importance of exploring waste recovery opportunities within the system (e.g., fuel cell heat recovery). This review also identifies research gaps that need to be addressed to overcome freshwater supply challenges and enhance the sustainability and techno-economic viability of large-scale hydrogen energy systems.

Related subjects: Production & Supply Chain
Countries: Australia
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/content/journal5998
2024-06-25
2024-11-01
/content/journal5998
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