Japan’s NGK Insulators and Mitsubishi Heavy Industries (MHI) plan to develop a hydrogen purification system to support large-scale ammonia-based hydrogen supply chains.
Under a joint project, the duo have said they aim to build a system to purify hydrogen using membrane separation from hydrogen-nitrogen mixture gas generated during ammonia cracking.
Despite ammonia being set to play a significant role in the transport of hydrogen, purifying hydrogen after ammonia cracking is crucial to allow the energy carrier to meet strict purity requirements for use in various applications. In fuel cells, impurities can poison catalysts, reducing efficiency and lifespan.
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