Chemical looping combustion: Advantages, disadvantages, opportunities and challenges

Haibo Zhao; Ying Li; Xi Chen; Jinchen Ma; Chaohe Zheng; Xianyu Liu; Lulu Li

doi:10.59717/j.xinn-energy.2025.100118

The Innovation Energy > 2025 Vol. 2 > No. 4 > 100118

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Chemical looping combustion: Advantages, disadvantages, opportunities and challenges

1.
State Key Laboratory of Coal Combustion, Huazhong University of Science & Technology, Wuhan 430074, China

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Corresponding author: hzhao@mail.hust.edu.cn
Received Date: January 13, 2025

Accepted Date: June 23, 2025

Published Online: October 11, 2025

The Innovation Energy 2(4), https://doi.org/10.59717/j.xinn-energy.2025.100118 | Cite this article

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PUBLIC SUMMARY

PUBLIC SUMMARY
1. Chemical looping combustion (CLC) offers inherent CO2 capture and cascade energy utilization.
  
  Key challenges include cost-performance balance of oxygen carriers and reactor optimization.
  
  Commercialization is hindered by operational complexities and efficiency gaps.
  
  Advancing CLC requires cost-effective oxygen carriers and standardized reactor designs.

ABSTRACT

ABSTRACT

Chemical looping combustion (CLC) has garnered significant attention for its inherent CO₂ separation and efficient energy utilization, making it a leading low-energy CO₂ capture technology. Despite substantial progress, from studies on oxygen carriers (OCs) to pilot-scale applications, further research is essential for commercial deployment. This review examines the current status of CLC, highlighting its advantages, disadvantages, unresolved challenges, and opportunities. Key challenges include balancing OC cost and performance, optimizing heat and mass transfer, accelerating rate-limiting reactions, and improving reactor design and operation. The analysis reveals that while CLC demonstrates promising efficiency and scalability, its full commercialization is hindered by operational complexities and efficiency gaps. To advance CLC, this study recommends prioritizing the development of cost-effective, high-performance OCs and standardized reactor design methodologies through interdisciplinary collaboration and advanced computational tools.
- Chemical looping combustion /
- CCUS /
- Reactor /
- Oxygen carriers /
- CO₂ capture

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Zhao H., Li Y., Chen X., et al. (2025). Chemical looping combustion: Advantages, disadvantages, opportunities and challenges. The Innovation Energy 2:100118. https://doi.org/10.59717/j.xinn-energy.2025.100118

Zhao H., Li Y., Chen X., et al. (2025). Chemical looping combustion: Advantages, disadvantages, opportunities and challenges. The Innovation Energy 2:100118. https://doi.org/10.59717/j.xinn-energy.2025.100118

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