Adding value to agro-industrial waste for energy purposes

Dionizio, Aline Faleiro; Vale, Ailton Teixeira do; Moreira, Alessandro Cézar de Oliveira; Galvão, Luiz Gustavo Oliveira; Chaves, Bruno; Costa, Mírian de Almeida

doi:10.19084/rca.15129

Cited by 4 publications

(14 citation statements)

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“…The contents found are close to what was found by [9], who obtained 73.20% using residues of orange tree pruning. Values similar to the present study were found for bean straw and corn cob (70.17 and 74.37%, respectively) according to [36], and lower values were found by [49] between 56.56 and 57.27% of holocellulose using Bertholletia excelsa (Brazil nut tree) and Lecythis pisonis (Castanheira-de-sapucaia), respectively. Holocellulose is of fundamental importance because the degradation of the molecules that compose it occurs in an extensive temperature range, approximately 150-450 • C, which gives thermal stability in the burning of biomass [52], although, according to [49], there is an inverse relationship with the fixed carbon content, which is corroborated by [44], who obtained higher levels of holocellulose and, consequently, lower levels of lignin by studying various wood residues.…”

Section: Chemical Characterizationsupporting

confidence: 90%

“…The solubility in several solvents, water among them, exerts influence on the moisture content of the material, which influences the reduction in calorific value and the effective biomass burning [33][34][35]. However, there is a positive relationship between extractive content and calorific value [36,37]. The most volatile extractives and low molecular mass are degraded more quickly with an increasing temperature [38], which contributes to burning in order to optimize the combustion of the material [39].…”

Section: Chemical Characterizationmentioning

confidence: 99%

“…Moisture is a parameter used to qualify the biomass that mainly influences the calorific value of the material because it reduces the mass fraction of carbonaceous compounds and, consequently, reduces the heat capacity, causing greater endothermy in the process that involves burning the material, mainly in cases of large volumes of biomass. Therefore, this influences production costs and leads to a loss of useful energy [36,[55][56][57].…”

Section: Immediate Analysesmentioning

confidence: 99%

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Technical Feasibility Study of Orange Wood Residues (Citrus sinensis) for Bioenergy Generation

Dias,

Guimarães,

Dias Júnior

et al. 2024

Energies

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The production of orange (Citrus sinensis) generates many residues, and the few that are used are usually by-products of the fruit juice processing industry. Among the residues, wood is potentially advantageous for use in bioenergy, but with few records in the literature. In this sense, this study sought to evaluate the feasibility of using orange wood for energy purposes by performing chemical characterization, immediate analysis, FTIR, calorific value, thermogravimetry and bulk and energetic densities for three compositions: 100% trunk (100T), 90% trunk + 10% bark (90T10B) and 100% bark (100B). 100T showed a higher fixed carbon content (16.76%) and equality with 90T10B in lignin, holocellulose, useful calorific value and volatile materials. 100B presented higher extractives and ash contents of 19.67% and 10.35%, respectively. The FTIR spectra and thermogravimetric curves were similar in 100T and 90T10B. 100B showed more stages of degradation and a higher incidence of peaks in the range 780–612 cm−1. The bulk density was equal in 100T and 90T10B, but the energy density was higher in 100T (6.16 Gj.m−3). 100T and 90T10B are good options for bioenergy and the chemical composition and thermal degradation of 100B point to new investigations in this composition.

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Section: Chemical Characterizationsupporting

confidence: 90%

Section: Chemical Characterizationmentioning

confidence: 99%

Section: Immediate Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Technical Feasibility Study of Orange Wood Residues (Citrus sinensis) for Bioenergy Generation

Dias,

Guimarães,

Dias Júnior

et al. 2024

Energies

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“…Residual biomass can be described as any amount left over from a process of production or exploration, transformation or use (Dionizio, 2019). The rational and e cient use of biomass resources, through the use of modern technologies and the use of waste, is a viable alternative for energy production (Vale and Olsen 2013, Veksha et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Physical-Chemical and Energy Characterization of Residual Biomass from Baru Fruit (Dipteryx Alata Vogel)

Costa

Gouvêa

Carneiro

et al. 2023

Preprint

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The use of the fruit of the species Dipteryx alata Vogel (baru) is a highly profitable and expanding activity in the Brazilian market, although the almond of the fruit has high commercial value, the processing of the fruit generates about 87% of residual biomass. The objective of this work was to characterize the biomass and biochar obtained from the residual biomass of the fruit. Biomass was characterized in relation to physical, chemical and energetic properties. Subsequently, biomass carbonization was carried out at different rates of final temperatures (450; 550 and 650 ° C). For carbonization, the gravimetric yield in biochar, bio-oil and non-condensable gases was analyzed. Biochar was characterized in relation to chemical, physical and energetic parameters. The apparent density value found for biomass was 0.917 g.cm−³ while the biochar varied from 0.723 to 0.768 g.cm−³. Regarding the chemical composition of the biomass, the extract value was 9.88%. The total lignin content was 28.29%. For the immediate chemical analysis the values were 0.40 for ash, 18.47% for fixed carbon and 81.34% for volatile materials. The gravimetric yield of biochar at different temperatures ranged from 34.99 to 39.48%, while the yield on condensable gases ranged from 35.36 to 40.33% and the yield on non-condensable gases was around 23.54 to 25, 29%. The calorific value of biomass was 21,176 kj.kg− 1 and biochar up to 35,328a kj.kg− 1. The values found indicate that the residual biomass and biochar from the fruit's pericarp, showed high energy potent.

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“…Agro-industrial residues have the potential to be used as raw material for energy production, [2][3][4][5][6][7]. In general, new research with unknown lignocellulosic natural fibers is continuing discovering their potential to be used in engineering materials [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Hot Pressing Processing by Physical Properties of Ecofriendly Composites Reinforced by Eucalyptus Sawdust and Chamotte Residues

et al. 2023

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The particleboard industry consumes large amounts of raw material, and this type of product consumption has been increasing over the last few years. The research for alternative raw materials becomes interesting, since most of the resources come from planted forests. In addition, the investigation of new raw materials must take into account environmentally correct solutions, such as the use of alternative natural fibers, use of agro-industrial residues, and resins of vegetable origin. The objective of this study was to evaluate the physical properties of panels manufactured by hot pressing using eucalyptus sawdust, chamotte, and polyurethane resin based on castor oil as raw materials. Eight formulations were designed with variations of 0, 5, 10, and 15% of chamotte, and two variations of resin with 10% and 15% of volumetric fraction. Tests of gravimetric density, X-ray densitometry, moisture content, water absorption, thickness swelling, and scanning electron microscopy were carried out. Through the results it can be noticed that the incorporation of chamotte in the manufacture of the panels increased the water absorption and the swelling in thickness, around 100% and the use of 15% of resin decreased, more than 50%, the values of these properties. X-ray densitometry analyzes showed that the addition of chamotte alters the density profile of the panel. In addition, the panels manufactured with 15% resin were classified as P7, the most demanding type on EN 312:2010 standard.

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Adding value to agro-industrial waste for energy purposes

Cited by 4 publications

References 0 publications

Technical Feasibility Study of Orange Wood Residues (Citrus sinensis) for Bioenergy Generation

Technical Feasibility Study of Orange Wood Residues (Citrus sinensis) for Bioenergy Generation

Physical-Chemical and Energy Characterization of Residual Biomass from Baru Fruit (Dipteryx Alata Vogel)

Evaluation of Hot Pressing Processing by Physical Properties of Ecofriendly Composites Reinforced by Eucalyptus Sawdust and Chamotte Residues

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