摘要
氨不仅是氮肥生产的主要原料,也是可再生能源储存与转化过程中的能源载体之一。因此,开发温和条件下的合成氨技术是近年来重要的研究课题。化学链合成氨技术通过载氮体的传递作用,将合成氨反应解耦为固氮与释氨等多步反应,具有操作简便、反应温和、能耗低等优点。载氮体作为化学链合成氨的关键,起到传递能量及氮物种的作用,目前,载氮体固氮效率低,极大地限制了化学链合成氨技术的发展。基于此,本工作对化学链合成氨中载氮体的设计与应用研究进行综述。首先,对载氮体的设计理论进行了归纳与总结;其次,介绍了载氮体的研究现状,重点对如何提高载氮体的产氨速率以及如何提升晶格氮利用率等问题进行了综述;最后,对化学链合成氨技术所面临的机遇与挑战进行了研究,为今后载氮体的设计与开发提供了参考依据。
Ammonia is not only the main raw material of nitrogen fertilizer production,but also one of the energy carriers for the storage and conversion process of renewable energy.Therefore,the development of a mild ammonia synthesis technology has become an important research topic in recent years.The chemical looping ammonia synthesis technology decouples the ammonia synthesis reaction into several steps,including the nitrogen fixation and the ammonia release,which has the advantages of easy operation,mild reaction,and low energy consumption.As the key to the chemical looping ammonia synthesis,nitrogen carriers play the role of transferring energy and nitrogen species.However,the current low nitrogen fixation efficiency of nitrogen carriers severely limits the development of the chemical looping ammonia synthesis technology.Therefore,this article reviews the research on the design,preparation and application of nitrogen carriers for the chemical looping ammonia synthesis.Firstly,the design theory of nitrogen carrier is summarized;secondly,the current research status of nitrogen carrier is introduced,with a focus on how to improve the ammonia production rate of nitrogen carrier and the utilization rate of lattice nitrogen;finally,the opportunities and challenges of chemical looping ammonia synthesis technology are discussed,which provide a reference for the design and development of nitrogen carrier in the future.
作者
巩宙婷
张谭
李娜
杨言言
刘守军
郑劼
余钟亮
杨颂
GONG Zhouting;ZHANG Tan;LI Na;YANG Yanyan;LIU Shoujun;ZHENG Jie;YU Zhongliang;YANG Song(College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China;College of Chemistry and Environmental Sciences,Shangrao Normal University,Shangrao 334000,China;State Key Laboratory of Clean and Efficient Coal Utilization,Taiyuan University of Technology,Taiyuan University of Technology,Taiyuan 030024,China;Shanxi Engineering Center of Civil Clean Fuel,Taiyuan 030024,China)
出处
《燃料化学学报（中英文）》
EI
CAS
CSCD
北大核心
2024年第4期512-524,共13页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金(22169017)资助。
关键词
合成氨
化学链
催化剂
反应动力学
过渡金属
金属氮化物
ammonia synthesis
chemical looping
catalyst
reaction kinetics
transition metals
metal nitride
