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(2017) Journal of Cleaner Production_Enhancement of energy recovery from chicken manure by pyrolysis in carbon dioxide

(2017) Journal of Cleaner Production_Enhancement of energy recovery from chicken manure by pyrolysis in carbon dioxide

 

Lee J., Choi D., Ok Y.S., Lee S.-R., Kwon E.E.

 

(Elsevier Ltd) Journal of Cleaner Production ISSN: 9596526 Vol.164 Issue. Article No. DOI: 10.1016/j.jclepro.2017.06.217

 

Herein, pyrolysis of chicken manure is investigated to establish a sustainable platform for the disposal of chicken manure while efficiently recovering energy as a form of syngas. To this end, this study lays great emphasis on the exploitation of CO2 in pyrolysis of chicken manure. As an initial assay for the role CO2 in the pyrolysis process, thermal degradation of chicken manure in N2 and CO2 is characterized thermo-gravimetrically. Except the temperature regime (≥720 °C) governed by the Boudouard reaction, the TGA results with chicken manure do not reveal any differences associated with physical aspects such as onset and end temperatures. For in-depth study, pyrogenic products generated from pyrolysis of chicken manure in N2 and CO2 are characterized. Particularly, an enhanced generation of CO is substantial at temperatures higher than 500 °C. This enhanced generation of CO is likely due to an enhanced thermal cracking behavior of volatile organic carbons (VOCs) evolved from pyrolysis of chicken manure. The enhancement of CO generation is catalytically expedited by biogenic salt such as calcite (CaCO3) in chicken manure. The introduced approach for utilizing CO2 in pyrolysis could be a sustainable option to treat biowaste such as chicken manure along with developing an effective waste-to-energy strategy. © 2017 Elsevier Ltd

 

 

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