Journal
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
Volume 15, Issue 3, Pages 464-482Publisher
SPRINGER
DOI: 10.1007/s11705-020-1983-0
Keywords
power to hydrogen; membrane technology; hydrogen; energy
Categories
Funding
- University of Melbourne
- Future Fuel Cooperative Research Centre (CRC) 'Novel Separation Technology development for hydrogen and future fuels systems'
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The global energy market is transitioning to low carbon fuel systems by converting surplus renewable energy into hydrogen gas. Injecting hydrogen into existing natural gas pipelines is a promising solution for hydrogen transportation and storage, but requires proper purification technologies for hydrogen recovery.
The global energy market is in a transition towards low carbon fuel systems to ensure the sustainable development of our society and economy. This can be achieved by converting the surplus renewable energy into hydrogen gas. The injection of hydrogen (<= 10% v/v) in the existing natural gas pipelines is demonstrated to have negligible effects on the pipelines and is a promising solution for hydrogen transportation and storage if the end-user purification technologies for hydrogen recovery from hydrogen enriched natural gas (HENG) are in place. In this review, promising membrane technologies for hydrogen separation is revisited and presented. Dense metallic membranes are highlighted with the ability of producing 99.9999999% (v/v) purity hydrogen product. However, high operating temperature (> 300 degrees C) incurs high energy penalty, thus, limits its application to hydrogen purification in the power to hydrogen roadmap. Polymeric membranes are a promising candidate for hydrogen separation with its commercial readiness. However, further investigation in the enhancement of H-2/CH4 selectivity is crucial to improve the separation performance. The potential impacts of impurities in HENG on membrane performance are also discussed. The research and development outlook are presented, highlighting the essence of upscaling the membrane separation processes and the integration of membrane technology with pressure swing adsorption technology.
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