Hydrogen has attracted widespread attention as a carbon-neutral energy source,but developing efficient and safe hydrogen storage technologies remains a huge challenge.Recently,liquid organic hydrogen carriers(LOHCs)te...Hydrogen has attracted widespread attention as a carbon-neutral energy source,but developing efficient and safe hydrogen storage technologies remains a huge challenge.Recently,liquid organic hydrogen carriers(LOHCs)technology has shown great potential for efficient and stable hydrogen storage and transport.This technology allows for safe and economical large-scale transoceanic transportation and long-cycle hydrogen storage.In particular,traditional organic hydrogen storage liquids are derived from nonrenewable fossil fuels through costly refining procedures,resulting in unavoidable environmental contamination.Biomass holds great promise for the preparation of LOHCs due to its unique carbon-balance properties and feasibility to manufacture aromatic and nitrogen-doped compounds.According to recent studies,almost 100%conversion and 92% yield of benzene could be obtained through advanced biomass conversion technologies,showing great potential in preparing biomass-based LOHCs.Overall,the present LOHCs systems and their unique applications are introduced in this review,and the technical paths are summarized.Furthermore,this paper provides an outlook on the future development of LOHCs technology,focusing on biomass-derived aromatic and N-doped compounds and their applications in hydrogen storage.展开更多
调研了氢仲-正转化释冷能力及研究现状,介绍了绝热、连续、等温三种转化方式的释冷潜能与工作特征。针对氢空间长期安全贮存,按照转化器布置位置与转化方式,提出四种冷量空间利用方案。研究发现:氢绝热转化在150 K时释冷量最大,为391 k ...调研了氢仲-正转化释冷能力及研究现状,介绍了绝热、连续、等温三种转化方式的释冷潜能与工作特征。针对氢空间长期安全贮存,按照转化器布置位置与转化方式,提出四种冷量空间利用方案。研究发现:氢绝热转化在150 K时释冷量最大,为391 k J/kg;等温转化在110 K时释冷量最大,为394 k J/kg;连续转化在出口温度大于200 K后,释冷量稳定在491 k J/kg。所提四种方案中,由于空间排气温度偏低,造成氢仲-正转化潜能无法充分释放,对贮箱绝热性能提升有限。相较于一次绝热转化,在蒸气冷却盘管内连续转化可较充分利用转化冷能,在氢的空间贮存应优先考虑。展开更多
基金supported by the National Natural Science Fund for Excellent Young Scholars(China)(Grant No.51822604).
文摘Hydrogen has attracted widespread attention as a carbon-neutral energy source,but developing efficient and safe hydrogen storage technologies remains a huge challenge.Recently,liquid organic hydrogen carriers(LOHCs)technology has shown great potential for efficient and stable hydrogen storage and transport.This technology allows for safe and economical large-scale transoceanic transportation and long-cycle hydrogen storage.In particular,traditional organic hydrogen storage liquids are derived from nonrenewable fossil fuels through costly refining procedures,resulting in unavoidable environmental contamination.Biomass holds great promise for the preparation of LOHCs due to its unique carbon-balance properties and feasibility to manufacture aromatic and nitrogen-doped compounds.According to recent studies,almost 100%conversion and 92% yield of benzene could be obtained through advanced biomass conversion technologies,showing great potential in preparing biomass-based LOHCs.Overall,the present LOHCs systems and their unique applications are introduced in this review,and the technical paths are summarized.Furthermore,this paper provides an outlook on the future development of LOHCs technology,focusing on biomass-derived aromatic and N-doped compounds and their applications in hydrogen storage.
文摘调研了氢仲-正转化释冷能力及研究现状,介绍了绝热、连续、等温三种转化方式的释冷潜能与工作特征。针对氢空间长期安全贮存,按照转化器布置位置与转化方式,提出四种冷量空间利用方案。研究发现:氢绝热转化在150 K时释冷量最大,为391 k J/kg;等温转化在110 K时释冷量最大,为394 k J/kg;连续转化在出口温度大于200 K后,释冷量稳定在491 k J/kg。所提四种方案中,由于空间排气温度偏低,造成氢仲-正转化潜能无法充分释放,对贮箱绝热性能提升有限。相较于一次绝热转化,在蒸气冷却盘管内连续转化可较充分利用转化冷能,在氢的空间贮存应优先考虑。
