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The effect of adding wood and temperature on the carbonization of chicken manure and the properties of biochars

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  • Kluska, Jacek
  • Ramotowski, Jakub

Abstract

The paper presents characterization of chicken manure and mixture of chicken manure (CM) and beech wood (WB) carbonization at 450 and 600 °C. Experiments were carried out in small scale batch reactor. The obtained results indicate that increase in the amount of beech wood in the pellets caused increase in fixed carbon content and also affected increase in the calorific value of biochar. The results show that biochar obtained in the carbonization process of chicken manure cannot be used for the barbecue charcoal production, which is caused by low Cfix and high ash content. Because of this, adding wood may be a good solution for the carbonization process. Experimental investigation showed that carbonization of pellets consisting of CM50 % and CM25 % lead to obtained biochar which meets standards for briquette barbecue production. Experimental results showed the possibility of using pyrolysis gases for energy purposes. Carbonization in different temperatures lead to production of pyrolysis gas mixtures with calorific value higher than the energy demand of the process. Moreover obtained energy contained in gases can cover the part of the heat demand of the farm. Analysis of heavy metals content showed that biochars meet the standards defined by the International Biochar Initiative.

Suggested Citation

  • Kluska, Jacek & Ramotowski, Jakub, 2023. "The effect of adding wood and temperature on the carbonization of chicken manure and the properties of biochars," Renewable Energy, Elsevier, vol. 219(P1).
    • Handle: RePEc:eee:renene:v:219:y:2023:i:p1:s0960148123013617
    DOI: 10.1016/j.renene.2023.119446
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