1Frontier&Overview|前沿与综述2023年1月第42卷第1期网络出版时间：2022-11-24T10:36:49网络出版地址：http://kns.cnki.net/kcms/detail/13.1093.TE.20221123.1017.002.html高压氢气管道氢脆问题明晰程玉峰加拿大卡尔加里大学机械工程系摘要：利用长输管道（尤其是现有的天然气管道）进行氢气输送，是发展规模氢能经济、加速实现能源转型战略的重要一环，但在高压氢气环境中，管道存在发生氢脆的潜在可能，严重影响了管道安全，并制约了氢气管道工业的发展。解释了氢脆现象的科学含义，澄清了诸多关于管道氢脆问题的误解及不明之处，详述了管道氢脆发生的条件、过程及机理，着重阐明了“气态环境氢脆”与“液态环境氢脆”的实质区别，并梳理了管道氢脆的独特特征和技术挑战。根据最新的相关研究成果及亲身的学术交流经验，指出了管道氢脆领域当下迫切需要解决的科学与技术问题，以期为天然气管道掺氢输送的安全运行提供技术发展路径。（图4，表2，参24）关键词：氢气管道；氢脆；氢致开裂；“阴极氢”；“气态氢”；掺氢输送中图分类号：TE832文献标识码：A文章编号：1000-8241（2023）01-0001-08DOI：10.6047/j.issn.1000-8241.2023.01.001Essenceandgapanalysisforhydrogenembrittlementofpipelinesinhigh-pressurehydrogenenvironmentsCHENGYufengDepartmentofMechanicalEngineering,UniversityofCalgary,CanadaAbstract:Pipelines,especiallytheexistingnaturalgaspipelines,areintegraltotheentirevaluechainofthefull-scalehydrogeneconomy,contributingtoacceleratedenergytransition.However,hydrogenembrittlementpotentiallyoccurringonpipelinesthreatensthepipelineoperatingsafetyandconstrainsthedevelopmentofhydrogenpipelineindustry.Inthiswork,thescientificmeaningofhydrogenembrittlementwasexplained,alongwiththeconditions,stepsandmechanismsforhydrogenembrittlementoccurrence,whilemanyconfusionsandmisunderstandingswereclarifiedandcorrected.Particularly,thedifferencesbetweenhydrogenembrittlementin“aqueous”environmentsandthehydrogenembrittlementin“gaseous”environmentsweredistinguished.Besides,theuniquecharacteristicsandthetechnicalchallengesofhydrogenembrittlementofpipelinesweresummarized.Basedonthelatestresearchachievementsandpersonalacademiccommunicationexperienceinhigh-press...
