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A thermochemical reaction and kinetic characteristic study of municipal sludge in the atmosphere of treated flue gas from calcium looping (Ca‐L)

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  • Songshan Cao
  • Yuyi Liu
  • Zhi Li
  • Feng Duan
  • Lihui Zhang
  • Jun Cao
  • Xiaojun Yang

Abstract

In this study, an in situ weighting system was used to study the thermal behavior of dried municipal sludge (MS) in the flue gas exiting from calcium‐looping (Ca‐L) process. The results showed that mass loss peak, initial decomposition temperature, and decomposition complete temperature moved to high‐temperature zone with increased heating rate. However, they moved to low‐temperature zone at higher O2 and CO2 concentrations. Apparent activation energy (E) and preexponential factor (A) increased with the increase of heating rate and O2 concentration and decreased with the increase of CO2 concentration. The heating rate has the greatest effect on the thermal decomposition of dried MS. With the heating rate increasing, the maximum mass loss peak occurred from 301 to 493°C, the corresponding E and A increased from 36.14 to 45.69 kJ mol−1 and from 29.58 to 321.4 min, respectively. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd.

Suggested Citation

  • Songshan Cao & Yuyi Liu & Zhi Li & Feng Duan & Lihui Zhang & Jun Cao & Xiaojun Yang, 2020. "A thermochemical reaction and kinetic characteristic study of municipal sludge in the atmosphere of treated flue gas from calcium looping (Ca‐L)," Greenhouse Gases: Science and Technology, Blackwell Publishing, vol. 10(5), pages 1050-1062, October.
  • Handle: RePEc:wly:greenh:v:10:y:2020:i:5:p:1050-1062
    DOI: 10.1002/ghg.2024
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    References listed on IDEAS

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    2. Wang, Run & Liu, Wenjuan & Xiao, Lishan & Liu, Jian & Kao, William, 2011. "Path towards achieving of China's 2020 carbon emission reduction target--A discussion of low-carbon energy policies at province level," Energy Policy, Elsevier, vol. 39(5), pages 2740-2747, May.
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