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Continuous O2-CO2 production using a Co-based oxygen carrier in two parallel fixed-bed reactors

  • [Closed] Clean Energy (The 7th Korea-China Clean Energy Technology Symposium)
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Abstract

Oxygen-enriched carbon dioxide stream with oxygen concentration higher than 20 vol% was produced continuously by using a Co-based oxygen carrier packed in two parallel fixed-bed reactors operated in a cyclic manner. Oxygen was absorbed by the oxygen carrier with air being fed. An oxygen-enriched carbon dioxide stream was obtained when the fixed-bed was regenerated with carbon dioxide as a purge gas. Multiple absorption and desorption cycles indicated that the Co-based oxygen carrier had high cyclic stability. XRD analysis determined the absorbed and desorbed products were Co3O4 and CoO, respectively. The TGA results indicated that Co-based oxygen carrier did not react with NO or SO2 during the desorption stage. This Co-based oxygen carrier offers potential for applications in the O2-CO2 production for the oxy-fuel coal combustion process.

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Authors and Affiliations

  1. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education of China, Department of Thermal Engineering, Tsinghua University, Beijing, 100084, China

    Teng Zhang, Zhenshan Li & Ningsheng Cai

Authors
  1. Teng Zhang
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  2. Zhenshan Li
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  3. Ningsheng Cai
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Correspondence to Zhenshan Li.

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Zhang, T., Li, Z. & Cai, N. Continuous O2-CO2 production using a Co-based oxygen carrier in two parallel fixed-bed reactors. Korean J. Chem. Eng. 26, 845–849 (2009). https://doi.org/10.1007/s11814-009-0141-7

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  • DOI: https://doi.org/10.1007/s11814-009-0141-7

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