Influence of Chemical Composition of Eucalyptus Wood on Gravimetric Yield and Charcoal Properties
Bárbara Luísa Corradi Pereira,Angélica de Cássia Oliveira Carneiro,Ana Márcia Macedo Ladeira Carvalho,Jorge Luiz Colodette,Aylson Costa Oliveira,Maurício Paulo Ferreira Fontes +5 more
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TLDR
In this article, the chemical properties of wood from six clones of Eucalyptus spp. relative to charcoal yield and its properties, determine the correlations between the evaluated parameters and identify a clone with the greatest potential for charcoal to steelmaking use.Abstract:
The objective of this study was to assess the chemical properties of wood from six clones of Eucalyptus spp. relative to charcoal yield and its properties, determine the correlations between the evaluated parameters and identify a clone of Eucalyptus having the greatest potential for charcoal to steelmaking use. The study of chemical properties included analysis of elemental composition, contents of cellulose, hemicelluloses, lignin, and ash, the syringyl/guaiacyl ratio (S/G), and the index of crystalline cellulose in the wood. The pyrolysis of wood was done in an electric laboratory oven. The gravimetric yield in charcoal, the content of volatile matter, fixed carbon and ash, higher heating value, and elementary composition were determined. Data were subjected to an analysis of variance, and after the difference between them was established, the Tukey test was applied. The Pearson correlation was employed as well. The results indicated that the contents of carbon, oxygen, and hydrogen in the wood significantly affected the charcoal yields and its higher heating value. Higher rates of crystalline cellulose favored the gravimetric yield in charcoal. The S/G ratio contributed more to the charcoal yield when compared to total lignin content.read more
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Lignocellulosic biomass pyrolysis mechanism: A state-of-the-art review
TL;DR: A broad review of the state-of-the-art biomass pyrolysis research can be found in this article, where three major components (cellulose, hemicellulose and lignin) are discussed in detail.
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Properties of biochar
Kathrin Weber,Peter Quicker +1 more
TL;DR: In this article, a large number of experiments on biochar production is presented to give a general overview of the properties that can be achieved by feedstock selection and process design, including torrefaction as well as slow pyrolysis at high temperatures.
Journal ArticleDOI
Assessment of chemical transformations in eucalyptus, sugarcane bagasse and straw during hydrothermal, dilute acid, and alkaline pretreatments
Danila Morais de Carvalho,Danila Morais de Carvalho,Olena Sevastyanova,Lais Souza Penna,Brunela Pereira da Silva,Mikael Lindström,Jorge Luiz Colodette +6 more
TL;DR: In this paper, the impact of hydrothermal, dilute acid, and alkaline pretreatments on the chemical structure of eucalyptus, sugarcane bagasse, and straw were compared with a view to their subsequent bioconversion.
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Chemical Analysis of Different Parts of Date Palm (Phoenix dactylifera L.) Using Ultimate, Proximate and Thermo-Gravimetric Techniques for Energy Production
Ramadan A. Nasser,Mohamed Z. M. Salem,Salim Hiziroglu,Hamad A. Al-Mefarrej,Ahmed Mohareb,Manawwer Alam,Ibrahim M. Aref +6 more
TL;DR: In this article, the authors analyzed chemical structure of date palm (Phoenix dactylifera L) by employing ultimate, proximate and thermo-gravimetric techniques.
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Biomass torrefaction for energy purposes – Definitions and an overview of challenges and opportunities in Brazil
Carlos Miguel Simões da Silva,Angélica de Cássia Oliveira Carneiro,Benedito Rocha Vital,Clarissa Gusmão Figueiró,Lucas de Freitas Fialho,Mateus Alves de Magalhães,Amélia Guimarães Carvalho,Welliton Lelis Cândido +7 more
TL;DR: In this paper, the authors evaluated the application potential of torrefaction in the solid fuel's production from lignocellulosic biomasses in Brazil and showed the definitions, use for energy purposes and the Brazilian production of agroforestry biomass.
References
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Pyrolysis of Wood/Biomass for Bio-oil: A Critical Review
TL;DR: A review of the recent developments in the wood pyrolysis and reports the characteristics of the resulting bio-oils, which are the main products of fast wood pyrotechnics, can be found in this paper.
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TL;DR: Torrefaction of biomass clearly showed the improved fuel characteristics and grinding properties closer to coal.
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Thermogravimetric Analysis and Devolatilization Kinetics of Wood
TL;DR: In this paper, the authors measured thermogravimetric curves at a heating rate of 5 K/min for several hardwoods (beech, alder, birch, and oak) and softwoods (Douglas fir, two pine species, redwood, and spruce), whose chemical composition varies within the usual standards.