| Texto completo | |
| Autor(es): |
Meza Ucella-Filho, Joao Gilberto
;
Dias Junior, Ananias Francisco
;
de Souza, Elias Costa
;
Missia da Silva, Joo Gabriel
;
Sant'anna Neto, Analder
;
da Silva, Ana Paula Camara
;
Hilgert Santos, Lourdes Maria
;
Ortega Rodriguez, Daigard Ricardo
;
Tomazello-Filho, Mario
;
Brito, Jose Otavio
Número total de Autores: 10
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Environmental Science and Pollution Research; v. 30, n. 19, p. 13-pg., 2023-04-01. |
| Resumo | |
The interest of biofuel producers in Neotropical species that have high growth rates, slight wood density variability, and elemental composition that does not compromise the environment has increased in recent decades. We investigated the density and chemical characteristics of wood of Schizolobium parahyba var. amazonicum (Huber x Ducke) Barneby as a source for the generation of bioenergy. Apparent radial wood density profiles (X-ray densitometry (XRD)) and the elemental distribution (X-ray fluorescence (XRF)) of Cl, S, K, and Ca in the wood of nine S. parahyba var. amazonicum trees, divided into three diameter classes (I = 15.5, II = 19.5, and III = 23.5 cm) were analyzed. The high heating value (HHV) of the wood samples was determined, and the energy density was estimated by the product of the HHV and the apparent density. Trees that grew better (classes II and III) produced wood with higher density. These trees showed higher concentrations of K and S, and lower concentrations of Ca and Cl. The highest Cl concentrations were observed in classes with smaller diameters. The chlorine levels met the standards for use of this wood as fuel, but the sulfur levels were higher than the threshold recommended by the ISO 17225-3:2021 guidelines, which can limit the use of the species for certain energy uses. The wood of S. parahyba var. amazonicum had interesting characteristics for the production of bioenergy due to its low density, so it can be used in the production of solid biofuels such as pellets and briquettes. Monitoring chlorine and sulfur is important, since during the combustion of biomass they are released into the atmosphere and can negatively contribute to the effects of climate change. (AU) | |
| Processo FAPESP: | 09/53951-7 - EMU: implantação de laboratório multiusuário especializado em métodos de espectroscopia de infravermelho próximo (NIR) e de densitometria de raios X em aplicações agro-florestais |
| Beneficiário: | Mario Tommasiello Filho |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |
| Processo FAPESP: | 15/19121-8 - EMU concedido no processo 2015/05942-0: sistema de microfluorescência de Raios X |
| Beneficiário: | Hudson Wallace Pereira de Carvalho |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Equipamentos Multiusuários |
| Processo FAPESP: | 15/05942-0 - Investigação do metabolismo de nanomateriais absorvidos por plantas empregando-se espectroscopias vibracional e de Raios X |
| Beneficiário: | Hudson Wallace Pereira de Carvalho |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 18/22914-8 - Mudanças climáticas globais na floresta tropical amazônica avaliadas por multi-indicadores dendrocronológicos |
| Beneficiário: | Daigard Ricardo Ortega Rodriguez |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |