PDF下载
[1]宋雨霖,李玉星.氢气在管线钢上的解离吸附机制及影响因素研究进展[J].油气储运,2024,43(11):1-14.
　SONG Yulin,LI Yuxing.Research Progress on Dissociative Adsorption Mechanism and Influencing Factors of Hydrogen on Pipeline Steel[J].Oil & Gas Storage and Transportation,2024,43(11):1-14.
点击复制

氢气在管线钢上的解离吸附机制及影响因素研究进展

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 43 期数: 2024年11期 页码: 1-14 栏目: 出版日期: 2024-11-25
Title:
Research Progress on Dissociative Adsorption Mechanism and Influencing Factors of Hydrogen on Pipeline Steel
作者:
宋雨霖; 李玉星
Author(s):
SONG Yulin; LI Yuxing
关键词:
氢气; 管线钢; 掺氢天然气; 解离吸附; 表面作用; 氢脆; 保护气
Keywords:
hydrogen; HCNG; surface interaction; dissociation adsorption; hydrogen embrittlement; protective gas
分类号:
TE832
文献标志码:
A
摘要:
【目的】在能源转型的大背景下，氢能源备受关注，建立可靠的氢气输送系统必不可少，而临氢管道建设需要对氢环境下管材氢脆导致材料失效的风险进行评价。氢进入管线钢引发氢脆需要6个步骤，其中对于氢产生、氢吸附步骤的研究尚不成熟，学者对氢吸附的机理认识存在分歧，因此研究氢在管线钢上的解离吸附机制尤为重要。【方法】聚焦于氢产生、氢吸附步骤，系统综述了氢气在管线钢上的解离吸附机制，通过Lennard-Jones势能曲线描述氢在铁表面相互作用过程，基于热力学与密度泛函理论模拟计算氢在铁表面上的解离吸附方式，并通过分析轨道成键、电荷转移得到氢在铁表面的解离吸附机理，提出氢解离吸附的环境、表面、氢自身３种影响因素，并总结得出相应的抑制氢解离吸附方法。【结果】氢气可通过活化解离为氢原子的方式吸附于管线钢表面并进入管材内部，其机理主要为H2与Fe发生轨道杂化作用使得H-H键断裂形成H-Fe键。氢浓度、氢流动状态、杂质气体、温度、铁表面状态等因素均会对氢解离吸附产生不同程度的影响，基于此提出涂层、腐蚀膜、保护气３种阻氢方法，从表面吸附过程抑制氢进入管线钢引发氢脆，其中保护气方法最为经济便捷。【结论】该研究明确了H2在管线钢表面解离吸附的具体实现过程，未来需对多因素耦合条件下的氢解离吸附进行研究并提出经济有效的阻氢方案，为临氢管道完整性管理打下基础，为临氢管材安全性提供保障。
Abstract:
[Objective]Under the background of energy transformation, hydrogen energy has attracted much attention. The establishment of a reliable hydrogen transportation system is indispensable, and the construction of pipelines in hydrogen environment necessitates an evaluation of the risks associated with hydrogen embrittlement leading to material failure in the pipe materials. The process of hydrogen embrittlement in pipeline steel involves six steps, among which the research on hydrogen generation and adsorption is immature, here is a divergence of opinions among researchers regarding the mechanism of hydrogen adsorption. Consequently, a comprehensive introduction and synthesis of the dissociative adsorption mechanisms of hydrogen on pipeline steels are necessitated. [Methods]In this paper, the steps of hydrogen generation and adsorption are concentrated, providing a review of the dissociative adsorption mechanisms of hydrogen on pipeline steels. The interaction of hydrogen with the iron surface is delineated using the Lennard-Jones potential, and the modes of dissociative adsorption of hydrogen on the iron surface are elucidated through thermodynamic and density functional theory calculations. The dissociative adsorption mechanism of hydrogen on the iron surface is inferred from the analysis of orbital bonding and charge transfer. The study articulates three influencing factors of hydrogen dissociation, including adsorption environment, surface, and hydrogen itself. Based on these factors, three methods to mitigate hydrogen dissociative adsorption are summarized: coatings, corrosion films, and protective gases. [Results]This paper concludes that hydrogen can be adsorbed onto the surface of pipeline steel and penetrate into the material through a process of dissociation into hydrogen atoms. The primary mechanism involves the interaction between H2 and Fe, leading to the dissociation of the H-H bond and the formation of H-Fe bonds through orbital hybridization. Factors such as hydrogen concentration, flow state, impurity gases, temperature, and the surface condition of iron can all influence the dissociative adsorption of hydrogen to varying degrees. Based on these influencing factors, three methods have been developed: coatings, corrosion films, and protective gases, which inhibit hydrogen entry into pipeline steel and prevent hydrogen embrittlement at the adsorption process. Among these, the use of protective gases is the most economical and convenient approach. [Conclusion]This review provides a comprehensive introduction to the research on the dissociative adsorption of hydrogen on pipeline steel, suggesting that the mechanism of hydrogen dissociation and adsorption on pipeline steel still warrants further investigation. It is essential to focus on studying the dissociative adsorption under multifactorial coupling conditions and to propose cost-effective hydrogen-blocking solutions. This will lay the foundation for the integrity management of hydrogen-blended pipelines and ensure the safety of hydrogen-exposed materials.

相似文献/References:

[1]孙艳,周理.气体在多孔材料中的储存[J].油气储运,2009,28(2):16.[doi:10.6047/j.issn.1000-8241.2009.02.005]
　SUN Yan,ZHOU Li.Gas Storage in Porous Materials[J].Oil & Gas Storage and Transportation,2009,28(11):16.[doi:10.6047/j.issn.1000-8241.2009.02.005]
[2]付安庆,吕乃欣,白真权,等.交流杂散电流对长输管线钢腐蚀行为的影响[J].油气储运,2014,33(7):748.[doi:10.6047/j.issn.1000-8241.2014.07.013]
　FU Anqing,LYU Naixin,BAI Zhenquan,et al.Impacts of AC stray current on the corrosion behavior of pipe steel for long-distance pipeline[J].Oil & Gas Storage and Transportation,2014,33(11):748.[doi:10.6047/j.issn.1000-8241.2014.07.013]
[3]郭磊,姜珊,彭常飞,等.X80 与X100 级管线钢裂纹扩展模拟分析[J].油气储运,2014,33(10):1066.[doi:10.6047/j.issn.1000-8241.2014.10.009]
　GUO Lei,JIANG Shan,PENG Changfei,et al.A simulation analysis of crack growth for X80 and X100 pipeline steels[J].Oil & Gas Storage and Transportation,2014,33(11):1066.[doi:10.6047/j.issn.1000-8241.2014.10.009]
[4]樊学华,李向阳,董磊,等.国内抗大变形管线钢研究及应用进展[J].油气储运,2015,34(3):237.[doi:10.6047/j.issn.1000-8241.2015.03.003]
　FAN Xuehua,LI Xiangyang,DONG Lei,et al.Progress in research and application of pipeline steels with high deformation resistance in China[J].Oil & Gas Storage and Transportation,2015,34(11):237.[doi:10.6047/j.issn.1000-8241.2015.03.003]
[5]张冬娜,戚东涛,邵晓东,等.复合材料增强管线钢管结构设计[J].油气储运,2017,36(10):1190.[doi:10.6047/j.issn.1000-8241.2017.10.015]
　ZHANG Dongna,QI Dongtao,SHAO Xiaodong,et al.Structural design of composite reinforced line pipe[J].Oil & Gas Storage and Transportation,2017,36(11):1190.[doi:10.6047/j.issn.1000-8241.2017.10.015]
[6]李玉星,张睿,刘翠伟,等.掺氢天然气管道典型管线钢氢脆行为[J].油气储运,2022,41(06):732.[doi:10.6047/j.issn.1000-8241.2022.06.015]
　LI Yuxin,ZHANG Rui,LIU Cuiwei,et al.Hydrogen embrittlement behavior of typical hydrogen-blended natural gas pipeline steel[J].Oil & Gas Storage and Transportation,2022,41(11):732.[doi:10.6047/j.issn.1000-8241.2022.06.015]
[7]刘方,杨宏伟,邓付洁.掺氢天然气输送用X65管线钢的氢脆行为[J].油气储运,2024,43(03):289.[doi:10.6047/j.issn.1000-8241.2024.03.005]
　LIU Fang,YANG Hongwei,DENG Fujie.Hydrogen embrittlement behavior of X65 pipeline steel for transmitting hydrogen-enriched compressed natural gas[J].Oil & Gas Storage and Transportation,2024,43(11):289.[doi:10.6047/j.issn.1000-8241.2024.03.005]
[8]刘宇,张立忠,高维新.管线钢的历史沿革及未来展望[J].油气储运,2022,41(12):1355.[doi:10.6047/j.issn.1000-8241.2022.12.001]
　LIU Yu,ZHANG Lizhong,GAO Weixin.Historical development and future prospects of pipeline steel[J].Oil & Gas Storage and Transportation,2022,41(11):1355.[doi:10.6047/j.issn.1000-8241.2022.12.001]
[9]任鹏炜,唐兴颖,覃祖安,等.深海环境因素对管线钢腐蚀行为影响研究进展[J].油气储运,2023,42(05):492.[doi:10.6047/j.issn.1000-8241.2023.05.002]
　REN Pengwei,TANG Xingying,QIN Zu&apos,et al.Research progress of the influence of deep-sea environment factors on corrosion behavior of pipeline steel[J].Oil & Gas Storage and Transportation,2023,42(11):492.[doi:10.6047/j.issn.1000-8241.2023.05.002]
[10]郑度奎,李敬法,宇波,等.临氢环境中聚乙烯管道寿命预测方法探讨[J].油气储运,2023,42(08):882.[doi:10.6047/j.issn.1000-8241.2023.08.004]
　ZHENG Dukui,LI Jingfa,YU Bo,et al.Lifetime prediction method for polyethylene pipeline in hydrogen environment[J].Oil & Gas Storage and Transportation,2023,42(11):882.[doi:10.6047/j.issn.1000-8241.2023.08.004]

更新日期/Last Update: 2024-09-23