Power Generation Technology ›› 2022, Vol. 43 ›› Issue (4): 544-561.DOI: 10.12096/j.2096-4528.pgt.22081

• Carbon Capture, Utilization and Storage Technology • Previous Articles     Next Articles

Research Status and Prospect of Chemical Looping Combustion Pilot Systems

Zhenshan LI1, Hu CHEN1, Weicheng LI1,2, Lei LIU1, Ningsheng CAI1   

  1. 1.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
    2.Dongfang Boiler Company Limited, Dongfang Electric Corporation, Chengdu 610097, Sichuan Province, China
  • Received:2022-04-21 Published:2022-08-31 Online:2022-09-06
  • Supported by:
    National Key Research and Development Program of China(2017YFE0112500)

Abstract:

Chemical looping combustion has the advantages of inherent CO2 separation and significantly reducing the NO x production. 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/(m2·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.

Key words: carbon capture, utilization and storage (CCUS), chemical looping combustion, reactor, fluidized bed, design theory

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