[Ocean Hydrogen Energy] Pipeline Bureau’s progress on pure/hydrogen-doped pipelines

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The pipeline bureau's hydrogen storage and transportation business has developed technologies and standard systems related to pure hydrogen and hydrogen-doped pipelines. Among them, pipeline integrity management, hydrogen doping suitability evaluation, hydrogen doping flow follow-up control, maintenance and emergency repair equipment, hydrogen-containing pipe testing and other technologies are industry-leading, forming 2 industry standards, 2 group standards, and 20 corporate standards. It has formed practical research results on the construction of large-diameter, high-pressure and large-flow hydrogen long-distance pipelines, and can provide a one-stop solution for the design, construction, operation, maintenance and repair of pure hydrogen and hydrogen-doped pipelines of all pressure levels. The Jiyuan-Luoyang hydrogen pipeline project completed and put into operation by the Pipeline Bureau is the hydrogen pipeline with the largest pipe diameter, highest pressure and highest transmission volume that has been built in China. It has been running smoothly for 8 years. In 2022, my country's first provincial comprehensive hydrogen doping experimental platform planned, designed and constructed by the Pipeline Bureau - Ningxia Natural Gas Hydrogen Doping Demonstration Pilot Project will be put into production. It can realize hydrogen doping experiments with different hydrogen doping ratios, different pipe materials and different equipment, and verify the existing gas pipeline network sealing materials, weld adaptability probability and risk assessment of hydrogen embrittlement and other issues at a hydrogen doping ratio of 6% to 24%. Relying on research on liquid hydrogen-related topics, we carried out theoretical analysis and simulation of the hydrogen liquefaction process, formed a hydrogen circulation refrigeration liquefaction system and process invention that utilizes LNG cold energy, and completed the first fuel cell-level hydrogen pipeline with the highest transmission volume currently planned and constructed in China. Pipeline Project - Dingzhou to Gaobeidian Hydrogen Pipeline Project. The first domestic metallurgical pure hydrogen pipeline for electrolyzing water to produce hydrogen - the Feasibility Study of Damao to Jiuyuan Hydrogen Pipeline Project. The Feasibility Study of Laoting to Qianxi Hydrogen Pipeline and Qinyang to Geely Hydrogen Pipeline are progressing as planned. Practice has proved that the pipeline bureau’s “three new” business development focuses on hydrogen energy and the development of hydrogen energy production, storage, transportation and sales business, which is the only way to achieve transformation and development. Pilot projects first to accumulate experience. The Pipeline Bureau promotes the implementation of the Wuhai Hydrogen Energy Production, Storage, Transportation and Sales Integration Demonstration Project, resolutely wins the first hydrogen energy integration project, ignites the hydrogen energy pipeline network platform construction engine, and provides a model for developing the hydrogen energy market. Taking the Tangshan hydrogen energy heavy truck project as an entry point, we will create a new model for hydrogen energy sales. We will make in-depth plans for the hydrogen pipeline network platform in the Greater Northern region, build a national hydrogen energy backbone network, and use our own advantages to carry out diversified cooperation. The Pipeline Bureau highlights market leadership, strengthens external cooperation, and cooperates with Jidong, Dagang, Tarim, Xinjiang, Qinghai and other oil fields, as well as Kunlun Energy, * * The pipeline network, local gas companies and other units carried out business communication and discussed areas of cooperation. and Wuhai City successively * * , Zhongtai (Suzhou) Hydrogen Energy Technology, Inner Mongolia Yellow River Energy Technology Group, * * Leading hydrogen energy promotion companies such as Inner Mongolia Energy Investment Group Co., Ltd. and Inner Mongolia Research Institute signed a strategic cooperation framework agreement to jointly promote hydrogen energy production, storage, transportation and sales business.