化学链燃烧中试系统的研究进展与展望  

Research Status and Prospect of Chemical Looping Combustion Pilot Systems

作　　者：李振山[1] 陈虎[1] 李维成 刘磊[1] 蔡宁生[1] LI Zhenshan;CHEN Hu;LIWeicheng;LIU Lei;CAI Ningsheng(Key Laboratory for Thermal Science and Power Engineering of Ministry of Education(Department of Energy and Power Engineering,Tsinghua University),Haidian District,Beijing 100084,China;Dongfang Boiler Company Limited,Dongfang Electric Corporation,Chengdu 610097,Sichuan Province,China)

机构地区：[1]热科学与动力工程教育部重点实验室(清华大学能源与动力工程系),北京市海淀区100084 [2]东方电气集团东方锅炉股份有限公司,四川省成都市610097

出　　处：《发电技术》2022年第4期544-561,共18页Power Generation Technology

基　　金：国家重点研发计划项目(2017YFE0112500)。

摘　　要：化学链燃烧技术具有CO内分离和显著降低NOx生产的优势。反应器是载氧体氧化还原与燃料转化的重要场所。从反应器型式、物料循环方式和设计理论3方面,分析了当前化学链燃烧中试系统的研究现状。目前,国际上已建立了热输入功率为10~3 000 kW的化学链装置,技术成熟度为6级,其中空气反应器和燃料反应器均采用流化床的串行双流化床工艺是化学链燃烧反应器的主流技术路线。此外,化学链中试装置的系统循环流率普遍低于25.5 kg/(m^(2)·s),导致难以实现自热运行。最后,介绍了高效炭颗粒分离、高通量循环流率化学链燃烧装置及反应器系统设计理论等相关工作的最新进展。Chemical looping combustion has the advantages of inherent COseparation and significantly reducing the NOxproduction. The circulation reactors are the core site for oxygen carrier redox and fuel conversion. The current research status of chemical looping combustion pilot systems was analyzed from three aspects of reactor type, solid material circulation mode and design theory. At present,chemical looping combustion pilot plants with heat input of 10~3 000 kW have been established in the world, and the technical readiness level is sixth. The mainstream technical route of chemical looping combustion is that the air reactor and fuel reactor both adopt the fluidized bed. The system circulation flow rate of the chemical looping pilot plants is generally lower than 25.5 kg/(m^(2)·s), which makes it difficult to achieve self-heating operation. Finally, we introduced the latest progresses including the theoretical research, the development of a high-efficiency carbon stripper, the design of a high-flux circulating flow rate chemical looping combustion unit, and the reactor system design, etc.

关 键 词：碳捕集、利用与封存(CCUS) 化学链燃烧 反应器 流化床 设计理论 

分 类 号：TK16[动力工程及工程热物理—热能工程]