天然气管道掺氢输送技术研究进展
李天娇1谢飞1,2张瑛3王丹1,2孙东旭1,2吴明1,2

1.辽宁石油化工大学石油天然气工程学院;2.辽宁省油气储运技术重点实验室;3.新疆油田公司工程技术研究院

掺氢天然气;管道输送;适应性;安全性

Advancements in hydrogen-blended natural gas pipeline transmission technology
LI Tianjiao1,XIE Fei1,2,ZHANG Ying3,WANG Dan1,2,SUN Dongxu1,2,WU Ming1,2

1.School of Petroleum and Natural Gas Engineering, Liaoning Petrochemical University; 2.Key Laboratory of Oil and Gas Storage and Transportation Technology in Liaoning Province; 3.Engineering Technology Research Institute, PetroChina Xinjiang Oilfield Company

hydrogen-blended natural gas, pipeline transmission, adaptability, safety

DOI: 10.6047/j.issn.1000-8241.2024.12.002

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【目的】化石能源的减少与环境问题的日益加剧迫使人们不断加大对新能源的开发利用,氢能因资源丰富、清洁无污染而备受关注。利用现有天然气管道掺氢输送是实现“双碳”目标的有效途径之一,但掺氢所带来的安全隐患不容忽视。【方法】为了促进氢经济的安全发展,从掺氢天然气管道输送流程的研究出发,总结了掺氢输送系统中管道、调压设备、储存设备、计量设备及终端应用等方面的研究现状,探讨了掺氢对压缩机、储氢瓶、流量计、燃具及燃气轮机等设备性能的影响,阐明了配送管道与干线管道的氢脆风险。在此基础上,对未来氢气管道输送技术的研究方向进行了展望。【结果】在天然气管道掺氢输送过程中,需重点考虑掺氢对各个流程的影响;依据设备与管道工况的不同确定合适的掺氢比,并结合性能参数的变化情况加以调整,避免因掺氢所引发的安全事故。【结论】目前中国的天然气管道掺氢技术研究已取得一定成就,但需进一步突破技术难点,并对氢脆、渗透、泄漏等机理进行系统性剖析。同时,亟需建设完善的天然气管道掺氢输送设计、施工、运行技术标准体系,以期加快天然气管道掺氢相关规程与标准的制定。(图1,参[81]
[Objective] The depletion of fossil energy and growing environmental challenges have necessitated a continuous focus on the development and utilization of renewable energy sources. Hydrogen energy, in particular, has garnered significant attention for its abundant resources and clean, pollution-free characteristics. Utilizing existing natural gas pipelines for hydrogen-blended transmission offers an effective means to achieve “ dual carbon” goals. However, potential safety hazards associated with this method must not be overlooked. [Methods] To promote the safe development of the hydrogen economy, this paper examined the pipeline transmission of hydrogen-blended natural gas. It summarized the current research on pipelines, pressure-regulating equipment, storage systems, metering devices, and terminal applications within the hydrogen-blended transmission framework. Additionally, it discussed the impact of hydrogen blending on the performance of compressors, hydrogen storage cylinders, flowmeters, gas appliances, gas turbines, and other equipments, while identifying the risk of hydrogen embrittlement in distribution and trunk pipelines. On this basis, the future research directions for hydrogen pipeline transmission technology were explored. [Results] During hydrogen-blended natural gas pipeline transmission, it should pay close attention to the impact of hydrogen blending on each process, establish the appropriate blending ratio based on the specific working conditions of equipment and pipelines, and adjust it according to changes in performance parameters to prevent safety accidents. [Conclusion] Currently, China has made some advancements in the hydrogen blending technology for natural gas pipelines; however, further breakthroughs are needed to address technical challenges and systematically analyze mechanisms such as hydrogen embrittlement, permeation, and leakage. It is imperative to establish a comprehensive technical standard system for the design, construction, and operation of hydrogen-blended natural gas pipelines to lead or participate in the development of relevant international regulations and standards. (1 Figure, 81 References)
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