63 documents found, page 1 of 7
Qualidade de black pellets de finos de carvão vegetal produzidos com diferentes...
Carvalho, Felipe Barbosa; Martins, Caio Cesar Nemer; Peres, Letícia Costa; Surdi, Paula Gabriella; Lima, Laura Vitória LopesCharcoal fines are co-products of the wood carbonization process, unwanted because they reduce the gravimetric yield of the main product, charcoal. It can be produced due to the carbonization process, during the storage and transport of charcoal. Pelletizing charcoal fines increases the energy density of this material, producing a homogeneous fuel with lower moisture content, enabling burning in equipment with ...
Solid Biofuel from the Amazon: A Circular Economy Approach to Briquette Product...
Vilas Boas, Mariana; Zanuncio, Antonio Jose Vinha; Neiva, Duarte M.; Carneiro, Angélica de Cássia Oliveira; Castro, Vinicius Resende deThe Amazon region contains numerous areas dedicated to sustainable timber extraction. This operation has low yields and generates a large amount of waste. However, this waste can be repurposed for energy generation, providing income for locals and reducing reliance on non- renewable energy sources prevalent in the region. This study aimed to assess the impact of torrefaction on various wood residues for briquet...
Properties of raw materials and pellets produced with blends of reforestation w...
Carvalho, Nayara Tamires da Silva; Simetti, Rodrigo; Trugilho, Paulo Fernando; Bianchi, Maria Lucia; Magalhães, Mateus Alves deA large amount of biomass is available in Brazil, which may give an alternative for pellet production. With the market constantly growing, the search for raw materials with the potential for energy generation has become a necessity in serving sector demands. Eucalyptus sp. and Pinus sp. are the main sources of timber in Brazil. Therefore, the main objective of this study was to evaluate the quality of pellets p...
Volume, biomass and carbon stock in the wood of a dry forest in Caicó Municipal...
Santos, Rosimeire Cavalcante dos; Castro, Renato Vinícius Oliveira; Carneiro, Angélica de Cássia Oliveira; Castro, Ana Flávia Neves MendesThe aim of this study was to quantify the stocks in volume, biomass and carbon in wood of a fragment of Caatinga dry forest, in Caicó Municipality, Rio Grande do Norte State, northeastern of Brazil. The inventory and sampling of biological material was carried out for biomass and carbon analysis. Wood density of eight species representing 91% of the importance value (VI) of the fragment was determined to conver...
Quality of Pinus sp. pellets with kraft lignin and starch addition
Castro, Paula Gabriella Surdi; Siqueira, Humberto Fauller; Castro, Vinicius Resende; Zanuncio, José Cola; Berger, Matheus da SilvaPellets are widely used for power generation because they use renewable raw material with easy storage, transport and high energy density. However, the structural fragility, disintegrating during handling, transport and storage, is one of the main problems of pellets, but the addition of binders/ additives can minimize this fragility. The objective of this study was to evaluate the properties of wood pellets wi...
Energetic characterization and radiographic analysis of torrefied coated MDF re...
Castro, Paula Gabriella Surdi; Castro, Vinicius Resende; Zanuncio, José Cola; Carneiro, Angélica de Cássia Oliveira; Gominho, Jorge; Araújo, SolangeThe use of wood panel residues as biomass for energy production is feasible. Heat treatments can improve energy properties while minimizing the emission of toxic gases due to thermoset polymers used in Medium Density Fiberboard (MDF) panels. Torrefaction or pre-carbonization, a heat treatment between 200 and 300 °C with low oxygen availability accumulates carbon and lignin, decreases hygroscopicity, and increas...
Potential of briquette produced with torrefied agroforestry biomass to generate...
Portilho, Gabriel Reis; Castro, Vinicius Resende; Carneiro, Angélica de Cássia Oliveira; Zanuncio, José Cola; Zanuncio, António José VinhaAgroforestry industries, such as sugar-alcohol, food, and logging, produce large quantities of waste, used to generate energy from direct burning. The application of other processes, such as torrefaction and briquetting, can increase the profits from the use of agro-industrial waste for energy generation. Briquetting is an alternative for using these wastes, allowing the compaction of the biomass, generating a ...
Potencial energético dos resíduos do fruto da Macaúba e sua utilização na produ...
Evaristo, Anderson Barbosa; Martino, Daniela Correia; Ferrarez, Adriano Henrique; Donato, Danilo Barros; Carneiro, Angélica de Cássia OliveiraO uso da biomassa para fins energéticos tem sido destaque como forma de reduzir a dependência energética de fontes não renováveis. A macaúba, espécie Acrocomia aculeata (Jacq.) Lodd. ex Martius, é uma palmeira arborescente. Possui um grande potencial energético a partir do processamento de seus frutos. O objetivo desse trabalho foi caracterizar os resíduos da macaúba após o processamento dos frutos, a fim de av...
Cisalhamento na linha de cola de Eucalyptus sp. colado com diferentes adesivos ...
Bianche, Juliana Jerásio; Teixeira, Ana Paula Mendes; Ladeira, João Paulo Silva; Carneiro, Angélica de Cássia Oliveira; Castro, Renato Vinícius OliveiraO objetivo deste trabalho foi avaliar a resistência ao cisalhamento na linha de cola de juntas de Eucalyptus sp. coladas com diferentes adesivos e diferentes gramaturas. Para a colagem das juntas foi utilizada a madeira de Eucalyptus sp., dois adesivos de cura a quente (fenol-formaldeído e melamina-formaldeído), quatro adesivos de cura a frio [resorcinol-formaldeído, silicato de sódio, PVA (acetato de polivinil...
Utilização de resíduos da madeira de candeia (Eremanthus erythropappus (DC.) Ma...
Santos, Rosimeire Cavalcante dos; Mendes, Lourival Marin; Carneiro, Angélica de Cássia Oliveira; Mori, Fábio Akira; Castro, Renato Vinícius OliveiraEste trabalho objetivou analisar, por meio das propriedades físicas e mecânicas, a viabilidade da produção de painéis a partir da incorporação do resíduo da madeira de candeia (Eremanthus erythropappus) e a influência das diferentes porcentagens de plástico tipo PET (polietileno tereftalato), como também da presença e ausência de parafina sobre as propriedades dos painéis aglomerados. Foram utilizados resíduos ...