2022 Volume 65 Issue 1 Pages 1-10
To achieve net-zero CO2 emissions over the coming decades, innovative new technologies, including separation, storage, and utilization of CO2, are indispensable. Chemical looping technology may provide effective solutions and promising energy conversion systems for power plants and industrial applications with inherent CO2 capture, avoiding energy penalties. Combined with appropriate CO2 storage and utilization options, chemical looping can achieve net-zero emissions. The challenges, benefits, and prospects of chemical looping systems with various oxygen carriers and reactor configurations are discussed in this review to provide insights into the development of innovative systems in terms of solid looping materials, reactions, systems, and economics.