天然气与氢气掺混工艺研究进展  

Research Advances in Natural Gas and Hydrogen Blending Processes

作　　者：秦守强 李敬法 王念榕[2] 宇波 王晓峰[2] 蒲明[2] 王玉生[2] QIN Shouqiang;LI Jingfa;WANG Nianrong;YU Bo;WANG Xiaofeng;PU Ming;WANG Yusheng(School of Mechanical Engineering,Beijing Institute of Petroleum and Chemical Technology,Beijing 102617,China;PetroChina Planning and Engineering Institute,Beijing 100083,China;School of Petroleum Engineering,Yangtze University,Wuhan 430100,China)

机构地区：[1]北京石油化工学院机械工程学院,北京102617 [2]中国石油天然气股份有限公司规划总院,北京100083 [3]长江大学石油工程学院,武汉430100

出　　处：《油气与新能源》2024年第6期1-10,19,共11页Petroleum and new energy

基　　金：国家自然科学基金项目“城镇掺氢燃气管道掺混/分层传质机理及高精度随动流量掺氢调控机制研究”(52372311);福建省“揭榜挂帅”引导性项目“城镇中低压管道燃气掺氢及燃烧关键技术与装备研发”(2023H0054);中国石油天然气集团有限公司科技项目“清洁供能关键技术研究与应用”(2023ZZ31YJ04)。

摘　　要：将氢气与天然气按照一定比例混合,并利用现役天然气管道基础设施进行输送,是目前实现低成本、规模化氢能输运的有效方法。天然气与氢气的掺混工艺决定了掺氢天然气混合气体的掺混均匀度和掺混精度,是天然气管道掺氢输送的核心技术。为了更好地推动该技术的发展,对近年来国内外天然气和氢气掺混工艺的主要研究进展进行了梳理,在此基础上,研究分析了无辅助混气装置的氢气掺混工艺和有辅助混气装置的氢气掺混工艺的掺混原理、优缺点及工况适应性。研究结果表明:在无辅助混气装置的氢气掺混工艺中,掺混工况、掺混管路结构、掺氢点位置等对不均匀混气管道长度有重要影响,工程中应对其掺混工艺参数进行优化,以缩短不均匀混气管道长度;在有辅助混气装置的氢气掺混工艺中,流量、压力波动条件下掺氢比例的精准调控是关键难题,建议进一步开展对掺氢比例高精度自动化调控技术的研究。不同氢气掺混工艺在掺混均匀度、掺氢比例调控精度、工况适应性、自动化程度等方面存在显著差异,实际工程中应综合考虑后进行选择。Mixing hydrogen with natural gas in certain proportions and using existing natural gas pipeline infrastructure for transportation is an effective method for achieving low-cost and large-scale hydrogen energy transport.The mixing process of natural gas and hydrogen determines the uniformity and accuracy of the blended hydrogen-natural gas mixture and is a core technology for hydrogen-blended natural gas pipeline transportation.This paper reviews and analyzes recent international and domestic research advancements in natural gas and hydrogen blending processes through literature surveys and summarizes the blending principles,advantages&disadvantages,and operational adaptability of hydrogen blending technologies without or with auxiliary mixing device in order to promote its development.The results indicate that in the hydrogen blending processes such factors as blending conditions,blending pipeline structure,and hydrogen injection points significantly affect the length of the non-uniform mixture pipeline without auxiliary mixing device and it is recommended to optimize the design of blending process parameters to reduce this length.Precise control of the hydrogen blending ratio under varying flow and pressure conditions is a key challenge in the hydrogen blending processes with auxiliary mixing device.It suggests further research on high-precision automated control technology for hydrogen blending ratios.Significant differences exist among different blending processes regarding blending uniformity,ratio control accuracy,operational adaptability,and automation levels,which should be comprehensively consid ered in practical engineering applications.

关 键 词：天然气 管道 掺氢输送 掺混工艺 

分 类 号：TE832[石油与天然气工程—油气储运工程] TK91[动力工程及工程热物理]