FIFA, April 16-PetroChina has released news that a breakthrough has been made in the technology of using existing natural gas pipelines to transport hydrogen over long distances. This provides technical support for our country to realize large-scale and low-cost long-distance hydrogen energy transportation in the future. At present, automobile transportation is still the mainstream mode of long-distance hydrogen transportation in China, but this method has high cost and low efficiency, which is also one of the main reasons for the high cost of terminal hydrogen, which restricts the development of the industrial chain.