Influence of Wood Physical Properties on Charcoal from Eucalyptus spp.

Andrade, Fernando Wallase Carvalho; Filho, Mário Tomazello; Moutinho, Victor Hugo Pereira

doi:10.1590/2179-8087.017615

Cited by 13 publications

(12 citation statements)

References 22 publications

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“…Wood basic density directly correlates with the gravimetric yield during the carbonization process and with the apparent relative density of the charcoal (Moutinho et al 2016, Andrade et al 2018. For carbonization, wood basic density greater than 500 kg.m -3 is desirable (Santos et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Selection of superior clones of Corymbia hybrids based on wood and charcoal properties

Loureiro

Vieira

Costa³

et al. 2019

Maderas, Cienc. tecnol.

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The use of fast-growing trees is a good economic strategy for charcoal production. Wood with adequate chemical and physical properties generally is positively correlated with charcoal quality. The objective of this research was to evaluate wood quality from fast-growing hybrids for charcoal production. Three Corymbia citriodora x Corymbia torelliana and four Corymba torelliana x Corymba citriodora hybrid clones were evaluated. Parameters used to evaluate wood quality were wood basic density, elemental and structural chemical composition, energy efficiency and thermogravimetric analysis and the parameters evaluated for charcoal quality were apparent relative density, gravimetric yield, high heating value, proximate analysis and energy efficiency. All clones had wood basic density superior than 0,5 g cm-3 and ash inferior than 1%, which are desirable for a good quality of charcoal. Lignin content did not differ among clones with an average less than the 28% recommended for energetic use. Although clones differed in wood parameters, as dry matter, high heating value, energy density, total extractives, holocellulose content, it did not reflect in charcoal quality differences. Wood from all clones had equal and satisfying high heating value of charcoal and energy efficiency quality for charcoal production and differed in apparent relative density and ash content.

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Section: Introductionmentioning

confidence: 99%

Selection of superior clones of Corymbia hybrids based on wood and charcoal properties

Loureiro

Vieira

Costa³

et al. 2019

Maderas, Cienc. tecnol.

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“…The genetic materials in this study, all presented a high charcoal yield (Fialho et al 2019;Carneiro et al 2016;Pereira et al 2013). However, this propriety by itself isn't enough for genetic materials selection.…”

Section: Discussionmentioning

confidence: 79%

“…Another propriety that is particularly relevant for ironmaster use, regarding the maintenance and lifespan of the furnace, is the ash content of the charcoal, which should be kept under 1%. Ash is composed of minerals, that don't generate energy, and are a residue of difficult disposal for the process (Andrade et al 2018;Pereira et al 2013). All the genetic materials of this study present values higher that the ideal ( Table 2).…”

Section: Discussionmentioning

confidence: 81%

“…However, this propriety by itself isn't enough for genetic materials selection. The balance between the charcoal yield and the other properties, such as friability and fixed carbon content is important, and usually related to the characteristics of the wood (Andrade et al 2018;Pereira et al 2012). In this sense, the use of the principal component analyses allows the study of the gravimetric yield with other fundamental properties for the quality of the charcoal, by observing the relations between them and their impact on the data variation.…”

Section: Discussionmentioning

confidence: 99%

“…The variables analyzed were friability (%), fixed carbon yield (%) and relative apparent density (g.cm -3 ); since they 2 summarize the ideal characteristics of charcoal for steel industry: resistance, thermo-reducer capacity and energy concentration. The Component 3, which explained 24% of the total data variation, is the representation of the ideal genetic material to produce charcoal, presenting low friability, high fixed carbon yield and apparent density (Pereira et al 2013). Therefore, this component was used for clonal selection.…”

Section: Values In Parentheses Represent Coefficient Of Variationmentioning

confidence: 99%

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Clonal selection of Corymbia for energy and charcoal production

Peres¹,

Carneiro²,

Figueiró³

et al. 2019

ADV. FOR. SCI.

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The genus Corymbia appears as an option to produce best quality charcoal. The selection of genotypes through multivariate analysis can be a solution when multiple variables influence the result. The aim of this study was to characterize eight genotypes of Corymbia citriodora x Corymbia torelliana for energy and charcoal production, group and indicate the genetic materials with highest potential. The woods specific gravity, high heating value and energy density was determined. Energy density was grouped by the Scott-Knott test; group 1 was appointed for energy generation. The wood was carbonized. Charcoal yield, density, fixed carbon, friability, higher heating value, ash content, fixed carbon yield and energy density were determined. Principal component analysis was performed. Principal component 3 was chosen, as the representation of the ideal genetic material. The scores were calculated, and genetic materials III, VI and VIII are selected for charcoal production. The selection has shown to be efficient.

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