The Hydrogen Economy Preface

Summary: This study utilizes a strategic methodology to optimize the supply chain of a green H-2 economy, including production, storage, and transportation, to achieve decarbonization in industrial and maritime sectors. The results provide detailed cost-benefit and trade-offs analysis for the optimal supply chain elements, helping to define the essential legislative changes required to promote green H-2 as a marine fuel.

Summary: In recent decades, hydrogen has gained renewed and growing interest worldwide as a high-quality and renewable energy carrier, thanks to advances in fuel cells and increasing environmental concerns. Steam reforming of fossil-based resources is currently the main method for hydrogen production, but it generates large amounts of greenhouse gases including CO2, which must be captured to fully exploit the potential of hydrogen. Membrane separation technology has seen significant growth, breakthroughs, and advancements, and it could be the key component in achieving inexpensive and highly pure hydrogen. Polybenzimidazole (PBI)-based membranes have shown excellent stability and selectivity, making them suitable for the development of industrially applicable hydrogen-selective membranes.