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Characterization of biochar from hydrothermal carbonization of bamboo

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Author(s): Daniel Schneider, Marina Escala, Kawin Supawittayayothin, Nakorn Tippayawong

Journal: International Journal of Energy and Environment
ISSN 2076-2895

Volume: 2;
Issue: 4;
Start page: 647;
Date: 2011;
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Keywords: Biomass; Char; Hydrothermal carbonization; Renewable energy

ABSTRACT
This paper presents a preliminary investigation on producing biochar from bamboo using a technique of hydrothermal carbonization. Laboratory scale experimentation to produce carbonaceous materials was carried out. The suspended biomass samples in water were subjected to hydrothermal carbonization at 220 C, 2.2 MPa in a closed vessel for six hours. The resulting products were in solid and liquid phase. The coal-like biochar was found to have rough surface and porous structure. The aqueous solution was found to contain a high concentration of nutrients, especially nitrogen, phosphorus, and potassium. The study shows that bamboo is an interesting and adequate biomass for the production of biochar with several applications including carbon sequestration.
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