Characterization and productivity of cassava waste and its use as an energy source

Veiga, João Paulo Soto; Valle, Teresa Losada; Feltran, José Carlos; Bizzo, Waldir Antônio

doi:10.1016/j.renene.2016.02.078

Cited by 75 publications

(40 citation statements)

References 49 publications

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“…Their contents depend on the species, the part of the plant, season, and the growing stage, among other factors [36]. Another explanation could be the botanical family of the studied species [37].…”

Section: Resultsmentioning

confidence: 97%

Modeling the Calorific Value of Biomass from Fruit Trees Using Elemental Analysis Data

Velázquez‐Martí¹,

Cortés²,

Hernández³

et al. 2017

Biomass Volume Estimation and Valorization for Energy

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Pruning of fruit trees produces a great quantity of biomass each year that can be used for energy production. For this purpose, it is necessary to carry out an energy characterization of these pruned wastes, where the determination of heating value is significant. This value is usually measured by an adiabatic or isoperibolic calorimeter, which causes high economic costs and wastes time. The present study is focused on the development of indirect models for heating value prediction of biomass from orange trees Citrus × sinensis Osbeck, almond trees Prunus dulcis (Mill) D.A. Webb, and olive trees Olea europaea L. from an elemental analysis in order to reduce the time of determination as well as the economic costs. Residual biomass was classified and characterized according to CEN regulations such as received, without drying. Also, moisture content wet basis, bark ratio, density, heating value, and elemental composition (carbon, hydrogen, nitrogen, and sulfur) were measured. The influence of these variables on the heating value was analyzed. Finally, mathematical models were developed to predict this value for this studied species. These models showed coefficients of determination between 0.83 and 0.97, being suitable for industrial use.

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Section: Resultsmentioning

confidence: 97%

Modeling the Calorific Value of Biomass from Fruit Trees Using Elemental Analysis Data

Velázquez‐Martí¹,

Cortés²,

Hernández³

et al. 2017

Biomass Volume Estimation and Valorization for Energy

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“…Estos coinciden con los reportados en la literatura para este tipo de biomasa [7], [27]. Igualmente, el valor del poder calorífico se encuentra dentro del rango reportado [7], [17].…”

Section: A Caracterización De Los Residuos De Yucaunclassified

Evolved gas analysis of cassava (Manihot esculenta) industrial waste

et al. 2018

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ResumenIntroducción− La pirólisis de residuos agroindustriales es una alternativa para generar combustibles líquidos de segunda generación. Objetivo− Determinar la cinética de la pirólisis de residuos industriales de yuca y de formación de productos. Metodología− Se estudió la pirólisis de residuos provenientes de la industria del almidón de yuca utilizando termogravimetría acoplada a espectrometría de masas. Los datos termogravimétricos fueron ajustados al modelo cinético de distribución de energías de activación, siendo necesario el uso de solo un pseudocomponente. Resultados− La pirólisis de las muestras calentadas a velocidades inferiores a 30 K/min mostró valores de los paráme-tros cinéticos diferentes a los de la pirólisis de las muestras calentadas a velocidades superiores a 50 K/min, lo cual sugiere un cambio de mecanismo con la velocidad de calentamiento. Los valores obtenidos de los parámetros cinéticos de la pirólisis de los residuos estudiados se encuentran en el rango reportado por la literatura para otros tipos de biomasa. Se identificaron 23 relaciones m/z en los gases desprendidos de la muestra con suficiente relación señal/ruido. Las señales de espectrometría de masas seleccionadas fueron ajustadas con el modelo DAEM utilizando los parámetros cinéticos obtenidos con los datos termogravimétricos. Conclusiones− Se lograron buenos resultados de ajuste con el modelo DAEM de un solo pseudocomponente para la mayoría de las relaciones m/z. La falta de ajuste para algunas relaciones m/z se puede atribuir a reacciones secundarias en fase gaseosa. Palabras clave− Análisis termogravimétrico; cinética; espectrometría de masas; pirólisis; biomasa Abstract Introduction− The pyrolysis of agro-industrial waste is an alternative to produce second generation liquid fuels. Objective−Determine the kinetics in the pyrolysis process of cassava industrial waste as well as of evolved product formation. Methodology− Pyrolysis of waste from cassava starch processing was studied via thermogravimetric analysis coupled to mass spectrometry. Thermogravimetric data were adjusted to the distributed activation energy model with one pseudocomponent. Results− Pyrolysis of samples heated at ramps below 30 K/min showed kinetics parameters with different values from the ones obtained for the samples heated at ramps above 50 K/min. This suggests a change in the pyrolysis reaction mechanism linked to heating rate. The kinetics parameters obtained in this work are in agreement with values reported for other biomass in literature. From the evolved gases, 23 m/z signals were identified with enough signal/noise ratio. Mass spectrometry signals were also adjusted with the distributed activation energy model using the kinetics parameters obtained from thermogravimetric data. Conclusions− Satisfactory results were achieved with the DAEM model with one pseudocomponent for most of m/z ratio. The lack of adjustment in some m/z ratio can be attributed to secondary reactions in the gas phase. Keywords− Thermogravimetric analysis; kinetics; mass s...

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“…Veiga et al (2016) also used thermogravimetric analysis for samples from three cassava plant parts, that is seed stem, coarse and fine stems. Veiga et al (2016) presented results of elemental analysis for the different crops and cassava varieties and observed that few variations were found between the different plant parts, except for nitrogen (N), which presented highest amounts, that is 1.7% for thin stems and 0.27% for thick stems. In other cassava varieties (IAC 14 and IAC 90) the N concentration ranged between 0.55 and 0.80%, respectively.…”

Section: Cassava Compositionmentioning

confidence: 99%

“…Several studies have determined the physicochemical characteristics of crop residues, such as corn cobs and straws, rice and coffee husks, pine sawdust, olive and tucumã seeds, sugarcane bagasse among others (Graham et al, 2007;Donaldson et al, 2001;Berndes et al, 2003;Ezui et al, 2015;Cruz et al, 2017;Veiga et al, 2016). However, detailed information on the use of cassava harvest residues for the different energetic applications is still missing.…”

Section: Introductionmentioning

confidence: 99%

“…Wei et al (2015) discussed the possibility of extracting starch from cassava branches for producing ethanol and also evaluated aspects such as the production origin region. Veiga et al (2016) sought to quantify and characterize cassava harvest residues by thermogravimetric analysis in oxidizing and inert atmospheres for studying the residues behavior as biofuel.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Application of cassava harvest residues (Manihot esculenta Crantz) in biochemical and thermochemical conversion process for bioenergy purposes: A literature review

Rodrigues¹,

Cruz²,

Souza³

et al. 2018

Afr. J. Biotechnol.

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Bioenergy production from biomass and agricultural wastes has gained significant interest due to rising fossil fuel prices and their decrease in air pollutant emissions. This review paper evaluates the state-of-art for the several applications from cassava harvest residues and their use in bioenergy industry, using different thermochemical and biochemical processes. Regarding the great available literature for this biomass, several pretreatment techniques, including mechanical, chemical, biological, thermal, ultrasonic and wet explosion were observed. The use of cassava harvest residues for the biochemical pretreatments, for example, hydrolysis, fermentation and thermochemical processes, such as direct combustion, gasification, pyrolysis, fast pyrolysis and oxy-fuel combustion was also discussed. Therefore, studies are necessary in order to understand that the use of cassava residues in thermal processes can increase the viability of this feedstock for biofuels production and/or in power co-firing units. After extensive study, it was observed that informations are still lacking about the use of cassava harvest residues in other conversion processes, thus, new studies to discover more on the use of this biomass, in order to extend their application in the bioenergy market is encouraged.

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Characterization and productivity of cassava waste and its use as an energy source

Cited by 75 publications

References 49 publications

Modeling the Calorific Value of Biomass from Fruit Trees Using Elemental Analysis Data

Modeling the Calorific Value of Biomass from Fruit Trees Using Elemental Analysis Data

Evolved gas analysis of cassava (Manihot esculenta) industrial waste

Application of cassava harvest residues (Manihot esculenta Crantz) in biochemical and thermochemical conversion process for bioenergy purposes: A literature review

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