[History of Haichuan Pipeline] Hebei has begun feasibility study on a 145-kilometer-long hydrogen pipeline with a designed transmission capacity of 100,000 tons/year.
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On June 9, 2021, China Petroleum and Natural Gas Pipeline Engineering Co., Ltd. (hereinafter referred to as the Pipeline Design Institute) achieved great results in the new energy market and successfully won the bid for the feasibility study project of the long-distance hydrogen transmission pipeline from Dingzhou to Gaobeidian, Hebei. It is reported that the pipeline starts from Xuyang Energy Industrial Park in Dingzhou, Hebei Province and ends at Xinfadi Logistics Park in Gaobeidian, Baoding, Hebei Province. It has a total length of approximately 145 kilometers, a pipe diameter of 508 mm, and a designed transmission capacity of 100,000 tons/year. It is the longest hydrogen pipeline currently planned and constructed in China. This project is the first phase of the north-south hydrogen pipeline network planning in Hebei Province. It is of great significance for solving the north-south hydrogen transportation problem in the Beijing-Tianjin-Hebei region, forming a regional hydrogen backbone pipeline network, and promoting the utilization of new energy in the Beijing-Tianjin-Hebei region.
The initial investment in hydrogen pipelines is huge and safety requirements are very high. “Last year, we wanted to build an overhead open-air hydrogen pipeline, but due to safety hazards, the emergency management department did not approve it. ”A person who is engaged in the hydrogen production, storage and transportation industry told us that the construction of hydrogen pipelines needs to consider multiple factors such as cost, terminal demand, and safety around the pipeline. “Even if you have enough funds, you can’t build a hydrogen pipeline if you want to build it.” “Pure hydrogen pipelines, if the pipeline material is high and the anti-corrosion measures are good, have certain development potential. However, in order to avoid large-area hydrogen leakage in the pipeline, on-site management is required, and emergency valves need to be installed at certain distances. Once a problem occurs, Yan Donglei said: “Hydrogen leaks can be blocked immediately. ”. Making full use of the current pipeline infrastructure and mixing hydrogen into natural gas for transportation has been fully recognized by professionals. However, hydrogen doping of natural gas faces complex economic issues. At the same time, due to its own characteristics, it will cause pipeline risks such as hydrogen embrittlement and penetration in the pipeline. In this regard, the above-mentioned researchers suggested that some short-distance pilots should be carried out and technical reserves should be prepared. "For example, Zhangjiakou is rich in scenic resources, and hydrogen fuel cell vehicles have a certain demand for hydrogen. We can build some short-distance tubes to try urban transportation. ”