Economic Analysis of Large-scale Hydrogen Energy Storage and Transportation in China
At present,building a stable and economical hydrogen energy supply system has become one of the key tasks for Chinese hydrogen energy industry.Among them,the issues of single-path storage and transportation with low efficiency are particularly prominent,and there is an urgent need to accelerate the expansion of diversified storage and transportation methods,improve efficiency,and reduce costs.This article compares the economic efficiency of storage and transportation technologies such as high-pressure gaseous hydrogen,low-temperature liquid hydrogen,solid hydrogen storage,organic liquid hydrogen,liquid ammonia,methanol,as well as storage and transportation carriers such as long tube trailers,tank trucks,and pipelines.It is believed that high-pressure gaseous hydrogen long tube trailers can be used as the main transportation method within a transportation radius of 250 kilometers;250-600 kilometers can be mainly used for 30 megapascals long tube trailers,supplemented by low-temperature liquid hydrogen and solid hydrogen;from 600 kilometers away,low-temperature liquid hydrogen can be used as the main fuel,supplemented by 30 megapascals of long tube trailers and solid hydrogen.In addition,low temperature liquid hydrogen,solid hydrogen storage,organic liquid hydrogen,and natural gas hydrogen blending are suitable for scenarios where abundant hydrogen resources need to be released externally;chemical areas with a large scale of hydrogen use are suitable for constructing hydrogen energy pipeline transmission lines,while utilizing liquid ammonia and methanol technologies to achieve efficient,green,and low-carbon transformation and application of green hydrogen and carbon sequestration.
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