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Marina Donária Chaves Arantes
Universidade Federal de Santa Maria
16Publications
1H-index
6Citations
Publications 18
Newest
Abstract The global energy matrix is based on the use of fossil fuels, which are the main contributors of the greenhouse effect. There are several different alternatives to minimize this problem, such as the pelletization of agroforestry wastes for bioenergy purposes. The aim of this research was to evaluate the potential of forest biomass (eucalyptus wood [E]) and agricultural residues of coffee processing (parchment [P], silver skin [S] and coffee husk [CH]) for pellets production focusing on ...
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Abstract Lignocellulosic residues are potential sources of renewable energy, but these materials have low energy density and undesirable properties for energy use. For this reason, pelleting is a viable alternative for the biomass energy valorization because it produces high-energy-density solid biofuels. The aim of this research is to evaluate the physical, chemical, and energetic characteristics of pellets produced with lignocellulosic biomass blends (elephant grass [EG], eucalyptus wood [EW],...
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Abstract Interest in the wood industry of African mahogany (Khaya spp.) has increased in Brazil because of the quality of the wood and the similarity to the highly demanded Brazilian mahogany (Swie...
#1Vinícius Peixoto Tinti (UFES: Universidade Federal do Espírito Santo)H-Index: 1
#2Fabricio Gomes Gonçalves (UFES: Universidade Federal do Espírito Santo)H-Index: 6
Last.Michel Cardoso Vieira (UFRRJ: Universidade Federal Rural do Rio de Janeiro)H-Index: 3
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The objective of this study was to evaluate the mechanical resistance and resistance to degrading agents in particleboard with eucalyptus wood residue and Urea-Formaldehyde, Phenol-Formaldehyde and Tannin-Formaldehyde adhesives at two temperatures (120 oC and 140 oC). The panels were produced in the dimensions of 40 cm × 40 cm × 1.25 cm (width, length and thickness, respectively); 10% and 20% of tannin (50% solution) was added to the pure adhesives. The following parameters were evaluated: Modul...
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This work aimed evaluate the quality and quantity tannins contained from the eucalypts bark waste. The tannins were extracted with water and aqueous solutions under different concentrations (0, 4, 6, 8 and 10%) of sodium sulfate and sodium carbonate. The influence of the different concentrations of chemical compounds (Na 2 SO 4 and Na 2 CO 3 ), on yield and extract characteristics, namely: total solids content, tannins yield, non-tannins yield, pH, polyphenols yield by Stiasny reaction and react...
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Last.Yonny Martínez-LópezH-Index: 1
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#2Juarez Benigno Paes (UFES: Universidade Federal do Espírito Santo)H-Index: 10
Last.João Gabriel Missia da Silva (UFES: Universidade Federal do Espírito Santo)H-Index: 1
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: This study aims to evaluate the quality of normal, tension and opposite wood of eucalyptus trees lengthwise, in straight and inclined stems,affected by wind action. It also aims to explain the pulping parameters resultant from the quality of the wood. The trees were grouped into four tilt ranges, ranging from 0 to 50o, and the basic density, chemical composition of the wood, and performance in kraft pulping were assessed. Normal and tension wood had similar basic densities; while for opposite ...
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