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Recent Advances in Renewable Hydrogen Purification Technologies: A General Review
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| 4.2 MB | Adobe PDF |
Orientador(es)
Resumo(s)
Renewable hydrogen purification is a critical yet often underemphasised step in enabling
its use as a clean energy carrier. Hydrogen produced from biomass-based thermochemical
and biological routes typically contains CO2, CO, CH4, H2S, and other impurities that
must be removed to meet stringent requirements for fuel cell, industrial, and grid-injection
applications. This review provides a critical and up-to-date assessment of renewable
hydrogen purification technologies, focusing on their suitability for variable and impurityrich renewable hydrogen streams. Established benchmark technologies, including pressure
swing adsorption and cryogenic separation, are described, with emphasis on their operating
principles, material innovations, and process integration strategies. Recent advancements
in inorganic, polymeric, and mixed-matrix membranes are highlighted, with particular
focus on how advanced porous materials enhance selectivity, permeability, and flexibility.
Additionally, a comparative techno-economic assessment is presented, evaluating each
purification method based on technology readiness level, capital and maintenance costs,
energy efficiency, and operational lifespan. By incorporating recent research trends, this
approach facilitates the selection and design of purification systems that are not only
efficient and scalable but also cost-effective, tailored to both decentralised and centralised
renewable hydrogen production.
Descrição
Palavras-chave
renewable hydrogen hydrogen purification pressure swing adsorption membrane separation techno-economic assessment