温和氨分解制氢技术探究与工艺开发  

Exploration of Mild Ammonia Decomposition for Hydrogen Production and the Process Development

作　　者：王波 王立满 李文新 潘生杰 Wang Bo;Wang Liman;Li Wenxin;Pan Shengjie(LS Group Energy Equipments Institute,Lanzhou Gansu 730314;New Hydrogen(Ammonia)Energy Storage Technology Research and Development Center,Lanzhou Gansu 730314)

机构地区：[1]兰州兰石集团能源装备研究院,甘肃兰州730314 [2]新型氢(氨)储能技术研发中心,甘肃兰州730314

出　　处：《中外能源》2024年第10期38-44,共7页Sino-Global Energy

基　　金：甘肃省科技计划项目“新型氢(氨)储能技术研发中心建设”(编号:22CX8JA148);“低温绿氨制氢关键技术及装备研发”(编号:23JRRA1559)的资助。

摘　　要：聚焦于氨-氢储能领域中的关键技术——氨分解制氢。氨作为一种高能量密度的储氢介质,其通过分解制氢的过程不仅能够实现氢能的高效储存和运输,还能提供一种清洁的能源转换途径。对氨分解反应的热力学和动力学参数进行了初步计算,评估不同条件下氨分解的可行性和理论效率。通过对反应的研究,揭示了可以通过提高催化剂活性来降低整体反应温度实现温和氨分解制氢成为一种可能,为催化剂设计提供理论基础。在氨分解制氢技术中,催化剂的性能直接影响到反应的效率和经济性。因此,研究了新型钌基催化剂,该类催化剂以其优异的催化性能和较低的工作温度而被认为是氨分解制氢的最佳选择。通过催化剂的几何特征和床层空隙率,计算出床层压降。对后期反应器和工艺设计提供技术支撑。设计了温和氨分解反应的工艺流程。通过工艺流程的设计,可以为后续的实验室规模试验和工业应用提供清晰的技术路线。通过研究加深了对氨分解制氢技术的理论认识,还将为开发新型高效催化剂和优化反应工艺提供支持,从而推动氢-氨储能技术的实际应用和氢能经济的发展。This article focuses on ammonia decomposition for hydrogen production,a key technology in the field of ammonia-hydrogen energy storage.Ammonia is a high-energy-density hydrogen storage medium,and the hydrogen production through its decomposition can not only realize the efficient storage and transportation of hydrogen energy,but also provide a clean energy conversion pathway.Preliminary calculations of the thermo-dynamic and kinetic parameters of ammonia decomposition reaction were performed to assess the feasibility and theoretical efficiency of ammonia decomposition under different conditions.The study on the reaction re-veals that it is possible to achieve mild ammonia decomposition for hydrogen production by increasing the catalyst activity to lower the overall reaction temperature,providing a theoretical basis for catalyst design.In the ammonia decomposition technology for hydrogen production,the performance of catalysts directly affects the efficiency and economy of the reaction.Therefore,new ruthenium-based catalysts were investigated,which are considered to be the best choice for hydrogen production from ammonia decomposition due to their excellent catalytic properties and low operating temperatures.The bed pressure drop was calculated by the geometrical characterization and bed voidage of catalysts,providing technical support for the later reactor and process de-sign.The process flow for mild ammonia decomposition reaction was designed.The design of process flow can provide a clear technology roadmap for subsequent laboratory scale tests and industrial applications.The re-search deepens the theoretical understanding of the ammonia decomposition technology for hydrogen produc-tion,and will support the development of new efficient catalysts and the optimization of reaction process,thus promoting the practical application of hydrogen-ammonia energy storage technology and the development of hydrogen energy economy.

关 键 词：温和氨分解制氢 床层空隙率 工艺设计 

分 类 号：TQ116.2[化学工程—无机化工]