<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Pyrolysis of feedstocks to produce biochar for soil remediation employed to be a convenient method regarding improvement of soil fertility, increasing carbon stability and decreasing greenhouse gas emissions. Biochar properties and its effect after incorporation into the soils vary depending on the characteristics of feedstocks and pyrolysis process. This paper aims to compare the effect of pyrolysis temperature on the frequency of functional groups in different biochars made from plant feedstocks over the temperature range from 300 °C to 700 °C. An increase in pyrolysis temperature positively affects biochar surface properties until the deformation step in C = O, –COOH, and OH groups and as a result, the surface area of biochar decreases at high temperature (more than 600 °C). The breakdown of hemicellulose, cellulose, and lignin also occurs at temperatures more than 600 °C. Consequently, the biochar quality is reduced with increasing pyrolysis temperature although such biochar may be suitable for rising the content of stable carbon in the soils. Over the long-term, the stability of biochar can contribute to carbon sequestration, retention of water and ions in the soil.</p>
</abstract>

Pyrolysis of feedstocks to produce biochar for soil remediation employed to be a convenient method regarding improvement of soil fertility, increasing carbon stability and decreasing greenhouse gas emissions. Biochar properties and its effect after incorporation into the soils vary depending on the characteristics of feedstocks and pyrolysis process. This paper aims to compare the effect of pyrolysis temperature on the frequency of functional groups in different biochars made from plant feedstocks over the temperature range from 300 °C to 700 °C. An increase in pyrolysis temperature positively affects biochar surface properties until the deformation step in C = O, –COOH, and OH groups and as a result, the surface area of biochar decreases at high temperature (more than 600 °C). The breakdown of hemicellulose, cellulose, and lignin also occurs at temperatures more than 600 °C. Consequently, the biochar quality is reduced with increasing pyrolysis temperature although such biochar may be suitable for rising the content of stable carbon in the soils. Over the long-term, the stability of biochar can contribute to carbon sequestration, retention of water and ions in the soil.

Reviewing the effect of pyrolysis temperature on the fourier-transform infrared spectra of biochars

Bu-Ali Sina University, College of Agriculture

Slovak University of Agriculture in Nitra, Faculty of Horticulture and Landscape Engineering

Acta Horticulturae et Regiotecturae

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Pyrolysis of feedstocks to produce biochar for soil remediation employed to be a convenient method regarding improvement of soil fertility, increasing carbon...

Reviewing the effect of pyrolysis temperature on the fourier-transform infrared spectra of biochars

Publié en ligne: 01 nov. 2022

Pages: 160 - 173

Reçu: 29 mai 2022

Accepté: 13 oct. 2022

DOI: https://doi.org/10.2478/ahr-2022-0020

Mots clés
pyrolysis temperature, carbonization, degradation, functional groups

© 2022 Narges Hemati Matin et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Reviewing the effect of pyrolysis temperature on the fourier-transform infrared spectra of biochars

Publié en ligne: 01 nov. 2022

Pages: 160 - 173

Reçu: 29 mai 2022

Accepté: 13 oct. 2022

DOI: https://doi.org/10.2478/ahr-2022-0020

Mots cléspyrolysis temperature, carbonization, degradation, functional groups

© 2022 Narges Hemati Matin et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
pyrolysis temperature, carbonization, degradation, functional groups