Pyrolysis of wheat and barley straw

Anežka Sedmihradská, Michael Pohořelý, Petr Jevič, Siarhei Skoblia, Zdeněk Beňo, Josef Farták, Bohumír Čech and Miloslav Hartman
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Anežka Sedmihradská: Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Prague, Czech Republic
Michael Pohořelý: Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Prague, Czech Republic
Petr Jevič: Research Institute of Agricultural Engineering, p.r. Prague, Czech Republic
Siarhei Skoblia: Department of Power Engineering & Department of Gaseous and Solid Fuels and Air Protection, Faculty of Environmental Technology, University of Chemistry and Technology Prague, Prague, Czech Republic
Zdeněk Beňo: Department of Power Engineering & Department of Gaseous and Solid Fuels and Air Protection, Faculty of Environmental Technology, University of Chemistry and Technology Prague, Prague, Czech Republic
Josef Farták: Department of Power Engineering & Department of Gaseous and Solid Fuels and Air Protection, Faculty of Environmental Technology, University of Chemistry and Technology Prague, Prague, Czech Republic
Bohumír Čech: ENET Centre, Technical University of Ostrava, Ostrava, Czech Republic
Miloslav Hartman: Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Prague, Czech Republic

Research in Agricultural Engineering, 2020, vol. 66, issue 1, 8-17

Abstract: Pyrolysing agricultural crop residues and other biomass constitutes a newer method of transforming often difficult, waste materials into a novel type of soil amendment/additive. Simultaneously, this process also makes it possible to exploit part of the energy released in the agricultural production. Biochar, viewed as the solid product of biomass pyrolysis, is a remarkable, porous material, rich in carbon. Two agricultural crop residues, such as wheat and barley straw, were selected for the experimental studies. The results indicate that the practical temperature for the production of biochar from the two explored materials occurs in the vicinity of 600 °C. Starting at this temperature, the biochar produced complies safely with the principal European Biochar Certificate standards (EBC 2012). Thus, for the wheat straw and barley straw - originated char, the content of the carbon amounts to 67.2 and 67.0 mass %, the atomic ratio H : C is as large as 0.032 and 0.026, and the specific surface area amounts to 217 and 201 m2.g-1, respectively.

Keywords: carbonization; thermolysis; biomass; biochar; crop residue (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:66:y:2020:i:1:id:26-2019-rae

DOI: 10.17221/26/2019-RAE

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