Hydrogen Storage Potential in Natural Gas Infrastructure: Material Compatibility and System Integrity Assessment

With the advancement of global energy transition, hydrogen, as a clean energy source, is gradually gaining attention for its storage potential in natural gas infrastructure. Hydrogen storage technology can not only address the volatility of renewable energy but also provide a new solution for reducing carbon emissions. However, the compatibility of hydrogen with natural gas infrastructure, particularly the hydrogen resistance of materials and system integrity, has become a key challenge in achieving large-scale hydrogen storage and transportation. This paper focuses on the hydrogen storage potential in natural gas infrastructure, analyzing the impact of hydrogen on both metallic and non-metallic materials, with a particular emphasis on the threat of hydrogen embrittlement to the safety of pipelines and storage equipment. System integrity evaluation is also included, with a comprehensive analysis of the safety risks, material adaptability, and operational standards of hydrogen storage systems. Through case studies of domestic and international hydrogen storage projects, combined with the experience of natural gas infrastructure modification, this paper summarizes successful experiences and challenges, and outlines the future development directions of hydrogen storage technology. The research shows that with the emergence of new materials and technological advancements, hydrogen storage will play an increasingly important role in future energy systems, driving the development of a low-carbon economy.