Low pressure, low cost hydrogen storage technology

低压、低成本储氢技术

• 批准号: 2890283
• 金额: --
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2890283
• 关键词: Low; pressure; low; cost; hydrogen

Currently green hydrogen production and storage is focused primarily around electrolyser technology with high pressure storage. However, Electrolysers use rare earth metals such as Iridium. Material scarcity means there is only support for 3-7.5GW of electrolyser scale up annually. This also goes against the government mandate to reduce scarce material utilisation. The storage element is geared towards transport applications, such as hydrogen refuelling for transportation, where high pressure compressed storage has dominated current technology to meet energy density requirements for vehicles. To compress hydrogen to 350 or 700bar for a refuelling station requires a lot of energy.However, there are many uses for hydrogen aside from the transportation industry. There has been talk of adding Hydrogen to the gas supply system of up to 20%. HyDeploy has just concluded which was declared a "success" and trialed 20% H2 mix at Keele University. The 5 gas network operators have all apparently declared they are ready for this transition. However, pressures to domestic premises can be between 75mBar and 2Bar, a big step down from the 350-700Bar of a high pressure system. It makes little sense to generate hydrogen and then compress this to high pressures if the subsequent usage is low pressure systems. It makes more sense from an energy perspective to store the hydrogen at low pressures and avoid the round trip energy cost and the financial cost of the compressors and tanks. There is no low-pressure low-cost, hydrogen storage products on the market.Deliverables-Understanding the fundamental science behind low pressure hydrogen storage-Designing low pressure hydrogen storage systems using sustainability principles-Small scale test rig and instrumentation produced for validating technology-Test results analysed to check suitability and durability

目前，绿色氢生产和储存主要集中在具有高压储存的电解槽技术。然而，电解槽使用稀土金属，如铱。材料短缺意味着每年只能支持3-7.5GW的电解槽规模扩大。这也违背了政府减少稀缺材料使用的要求。存储元件面向运输应用，例如用于运输的氢燃料补给，其中高压压缩存储主导当前技术以满足车辆的能量密度要求。将氢气压缩到350或700巴用于加油站需要大量的能量。然而，除了运输工业之外，氢气还有许多用途。有人说要在供气系统中添加高达20%的氢气。HyDeploy刚刚得出结论，宣布“成功”，并在基尔大学试用了20%的H2混合物。5家天然气网络运营商显然都宣布他们已经为这一过渡做好了准备。然而，家庭住宅的压力可能在75 mBar和2Bar之间，比高压系统的350- 700 Bar下降了一大步。如果随后的使用是低压系统，那么产生氢气然后将其压缩到高压是没有意义的。从能源的角度来看，在低压下储存氢气并避免往返能源成本以及压缩机和罐的财务成本更有意义。市场上没有低压低成本的储氢产品。可持续性-了解低压储氢背后的基础科学-使用可持续性原则设计低压储氢系统-为验证技术而生产的小型试验台和仪器-分析测试结果以检查适用性和耐用性