Characterization and productivity of cassava waste and its use as an energy source
João Paulo Soto Veiga, Teresa Losada Valle, José Carlos Feltran
ARTIGO
Inglês
Agradecimentos: The authors would like to thank CAPES and CNPq, Brazilian agencies for research funding
This study sought to quantify and characterize cassava waste as fuel. The wastes from three cultivars were collected to study and were divided into three distinct parts of the cassava plant: seed stem, thick stalks, and thin stalks. Physical and chemical analyzes were carried out to determine the...
Ver mais
This study sought to quantify and characterize cassava waste as fuel. The wastes from three cultivars were collected to study and were divided into three distinct parts of the cassava plant: seed stem, thick stalks, and thin stalks. Physical and chemical analyzes were carried out to determine the elemental composition of the waste: volatile matter; fixed carbon; ash; moisture; lignin; cellulose; hemicellulose; ash composition and higher heating value were determined. We conducted a thermogravimetric analysis in oxidizing and inert atmospheres to study the behavior of the waste as fuel. The root productivity obtained ranged from 7.7 to 13.0 t ha−1 yr−1 on a dry basis (db), and the ratio between waste and roots varied from 0.36 to 0.91. The physical and chemical properties of cassava waste are analogous to those of woody biomass regarding the elemental composition, the higher heating value, and thermogravimetric analysis. Ash content varied from 2.5% to 3.5%, reaching around 6.0% in samples unwashed. Approximately 60% of the ashes are alkali oxides, especially P2O5, K2O, and CaO, which have low melting points. The alkali index calculated suggests that there is a strong tendency that the combustion process leads to ash fouling and the formation of ash deposits
Ver menos
CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
Fechado
Veiga, João Paulo Soto
Autor
Characterization and productivity of cassava waste and its use as an energy source
João Paulo Soto Veiga, Teresa Losada Valle, José Carlos Feltran
Characterization and productivity of cassava waste and its use as an energy source
João Paulo Soto Veiga, Teresa Losada Valle, José Carlos Feltran
Fontes
Renewable energy : an international journal (Fonte avulsa) |