Production of flammable gases from cattle manure via pyrolysis using CO₂ as an oxidant

Jong-Min JUNG, Dongho CHOI, Sungyup JUNG, Kun-Yi Andrew LIN, Yiu Fai TSANG, Eilhann E. KWON

Research output: Contribution to journalArticlespeer-review

3 Citations (Scopus)

Abstract

To valorize disposed animal manure into flammable gases, pyrolysis of cattle manure (CM) was investigated in this study. To make this process more efficient and environmentally benign, CO₂, a greenhouse gas, was harnessed as a reactive gas. In CO₂-assisted pyrolysis of CM, enhanced CO production was observed, compared to pyrolysis from inert condition (N₂). The gas-phase reactions between CO₂ and gaseous biocrude produced from CM thermolysis led to improved CO formation. In reference to the case of lignocellulosic biomass (rice straw), 5 times more CO production was observed from CM pyrolysis under CO₂. For an in-depth study of CO₂ functionality as an oxidant, the effects of operational parameters on syngas formation were considered. The key parameter to activate the functionality of CO₂ was temperature. These results offer that CO₂ and CM could be considered promising reactants to produce value-added syngas in line with mitigation of pollutant emissions through a pyrolysis platform. Copyright © 2021 John Wiley & Sons Ltd.
Original languageEnglish
Pages (from-to)6806-6816
JournalInternational Journal of Energy Research
Volume46
Issue number5
Early online date27 Dec 2021
DOIs
Publication statusPublished - Apr 2022

Citation

Jung, J.-M., Choi, D., Jung, S., Lin, K.-Y. A., Tsang, Y. F., & Kwon, E. E. (2022). Production of flammable gases from cattle manure via pyrolysis using CO₂ as an oxidant. International Journal of Energy Research, 46(5), 6806-6816. doi: 10.1002/er.7622

Keywords

  • Carbon dioxide
  • Lignocellulosic biomass
  • Pyrolysis
  • Syngas
  • Waste-to-energy

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