Physicochemical Properties of Biochar Produced from Goldenrod Plants |
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| Authors: | Bogusł awa Ł apczyń ska-Kordon,Zbigniew Ś lipek,Karolina Sł omka-Polonis,Jakub Styks,Tomasz Hebda,Sł awomir Francik |
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| Affiliation: | 1.Department of Mechanical Engineering and Agrophysics, Faculty of Production Engineering and Energetics, University of Agriculture in Krakow, Balicka 120, 30-149 Krakow, Poland; (K.S.-P.); (J.S.); (T.H.); (S.F.);2.Technical Institute, State Higher Vocational School, Staszica 1, 33-300 Nowy Sącz, Poland; |
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| Abstract: | Torrefaction is one of the methods of thermal treatment of biomass, which allows obtaining a product of better quality in the form of biochar. The aim of the paper was to analyze the possibility of using goldenrod (Solidago canadensis, Solidago gigantea) for the production of biochar. The torrefaction process involved the vegetative and generative parts as well as the whole plant at temperatures of 250 °C and 275 °C, for 3 h. Next, the physicochemical properties of the raw material and biochar were determined, namely moisture content, ash content, volatile matter content, calorific value, and heat of combustion. The bulk density of raw biomass and biochar was also determined. It was found that after biomass torrefaction, the ash content, calorific value, and heat of combustion increased, while volatile matter content decreased. It has been observed that in both the case of raw biomass and biochar, the plant species and the sampled parts have a significant impact on the ash content, volatile matter content, calorific value, and heat of combustion. |
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| Keywords: | goldenrod biochar biomass torrefaction physicochemical properties |
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