Research Status of Compatibility of Hydrogen-blended Natural Gas Pipeline

As a clean energy with zero carbon emission,hydrogen energy is an important force to promote China’s energy transformation. Among them,pipeline transportation can not only fully solve the problem of electricity consumption,promote the development of low-carbon economy,but alsoserve as the most economical way of long-distance transportation of hydrogen energy. At present,domestic hydrogen doped pipeline engineering experience is relatively small,and most of them are low pressure and low steel grade pipelines. There is no unified understanding on the design and evaluation of hydrogen-blended pipeline. This article summarizes the research progress of hydrogen-blended natural gas pipelines in the literature form China and foreign countries,expounds the feasibility and main challenges of the hydrogen-blended pipelines,and outlines the key parameters including the tensile properties,fracture toughness,and fatigue performance in some standards. In the end,the effect of hydrogen on the compatibility of the natural gas pipelines is discussed according to the performance test results of hydrogen-blended natural gas pipelines. This will provide fundamental guideline and reference the development of hydrogen-blended natural gas pipeline. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.