Pyrolysis of Medium Density Fiberboard (MDF) wastes in a screw reactor

Ferreira, Suelem Daiane; Altafini, Carlos Roberto; Perondi, Daniele; Godinho, Marcelo

doi:10.1016/j.enconman.2014.12.032

Cited by 53 publications

(26 citation statements)

References 36 publications

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“…They could produce the maximum bio-oil yield (40 wt%) at 600 °C with the char yield 17.3 wt% at the same conditions. The highest char yield (39.7 wt%) was obtained at 450 °C [275] . An industrial scale auger reactor was tested by Azargohar et al Wheat straw, sawdust, flax straw and poultry manure (particle size from 0.42 to 3.36 mm) were the feedstocks.…”

Section: Auger Reactormentioning

confidence: 96%

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Gholizadeh

2019

Journal of Energy Chemistry

500

216

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Section: Auger Reactormentioning

confidence: 96%

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Gholizadeh

2019

Journal of Energy Chemistry

500

216

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“…Diante deste desafio, é importante que as empresas e indústrias do setor realizem a implantação de sistemas certificáveis de gestão ambiental, como a norma ISO 14001, viabilizando uma adequada gestão de resíduos que permita obter benefícios sociais, ambientais econômicos [6][7][8] . Como exemplo podemos citar a utilização do resíduo em aplicações diversas tais como: fabricação de painéis aglomerados, tijolos e compósitos poliméricos; combustível alternativo para geração termoelétrica; produção de produtos de maior valor agregado através de conversão térmica; entre outras [9][10][11][12][13][14][15][16][17][18][19][20] . Infelizmente existe ainda no Brasil casos em que o descarte ocorre de maneira aleatória na natureza, resultando em grave impacto ambiental devido principalmente a característica particulada deste resíduo, favorecendo a liberação para a atmosfera de compostos orgânicos voláteis (em inglês, Volatile Organic Compounds, VOCs), especialmente o formaldeído, uma substância comprovadamente cancerígena de acordo com a Agência Internacional de Pesquisa em Câncer (International Agency for Cancer Research, IARC) [21] .…”

Section: Introductionunclassified

Absorção de água e propriedades mecânicas de compósitos poliméricos utilizando resíduos de MDF

2017

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ResumoApresenta-se o estudo de viabilidade de utilização, como reforço em materiais compósitos poliméricos, de resíduos originados da manufatura dos painéis de MDF (Medium Density Fiberboard), avaliando seu potencial como alternativa em substituição a cargas minerais para aplicação industrial. A escolha da resina poliéster ortoftálica foi motivada pelas suas propriedades e principalmente pelo seu baixo custo e facilidade de aquisição. Diferentes frações mássicas (m) de adição de resíduo em resina poliéster ortoftálica foram estudadas: 0, 10, 15 e 20%. As propriedades analisadas foram: resistência mecânica, absorção de água e grau de cristalinidade. Os resultados mostram a diminuição das propriedades mecânicas em até 53%, no índice de cristalinidade em até 18% e aumento no índice de absorção de água em quase cinco vezes para o compósito de maior adição de resíduo (C20). Palavras-chave: compósitos poliméricos, resíduos de MDF, resina poliéster ortoftálica, resistência mecânica, índice de cristalinidade. AbstractThe study examines the feasibility of using MDF (Medium Density Fiberboard) waste as reinforcement in orthophthalic polyester resin, evaluating its potential as an alternative to mineral filler for industrial applications. The orthophthalic resin was chosen because it's good performance, low cost and easily obtainable. Three composite compositions were prepared containing different amount of waste MDF (10, 15 and 20%). The mechanical properties, degree of crystallinity and water absorption of the resin and its respective composites were evaluated. The results show a decrease in mechanical strength and crystallinity index followed by an increase in water absorption index caused by poor adhesion in the region of the polymer matrix fiber interface.

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“…In the case of 10 • C/min, the first stage in the range of 25-214 • C refers mainly to the degradation of resin [19,36]. The second stage of 214-274 • C corresponds to the degradation of hemicellulose [36]. The third stage in the range of 274-363 • C is attributed to the decomposition of cellulose [37].…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

“…Table 4 lists the pyrolysis process based upon conversion and temperature at different heating rates. In the case of 10 • C/min, the first stage in the range of 25-214 • C refers mainly to the degradation of resin [19,36]. The second stage of 214-274 • C corresponds to the degradation of hemicellulose [36].…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

Kinetic Study on the Pyrolysis of Medium Density Fiberboard: Effects of Secondary Charring Reactions

et al. 2018

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The reaction models employed in the kinetic studies of biomass pyrolysis generally do not include the secondary charring reactions. The aim of this work is to propose an applicable kinetic model to characterize the pyrolysis mechanism of medium density fiberboard (MDF) and to evaluate the effects of secondary charring reactions on estimated products yields. The kinetic study for pyrolysis of MDF was performed by a thermogravimetric analyzer over a heating rate range from 10 to 40 °C/min in a nitrogen atmosphere. Four stages related to the degradation of resin, hemicellulose, cellulose, and lignin could be distinguished from the thermogravimetric analyses (TGA). Based on the four components and multi-component parallel reaction scheme, a kinetic model considering secondary charring reactions was proposed. A comparison model was also provided. An efficient optimization algorithm, differential evolution (DE), was coupled with the two models to determine the kinetic parameters. Comparisons of the results of the two models to experiment showed that the mass fraction (TG) and mass loss rate (DTG) calculated by the model considering secondary charring reactions were in better agreement with the experimental data. Furthermore, higher product yields than the experimental values will be obtained if secondary charring reactions were not considered in the kinetic study of MDF pyrolysis. On the contrary, with the consideration of secondary charring reactions, the estimated product yield had little error with the experimental data.

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Pyrolysis of Medium Density Fiberboard (MDF) wastes in a screw reactor

Cited by 53 publications

References 36 publications

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Biomass pyrolysis: A review of the process development and challenges from initial researches up to the commercialisation stage

Absorção de água e propriedades mecânicas de compósitos poliméricos utilizando resíduos de MDF

Kinetic Study on the Pyrolysis of Medium Density Fiberboard: Effects of Secondary Charring Reactions

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