Bioethanol production from waste paper acid pretreated hydrolyzate with xylose fermenting Pichia stipitis

Dubey, Alok; Gupta, Praveen Kumar; Garg, Neelam; Naithani, Sanjay

doi:10.1016/j.carbpol.2012.01.004

Cited by 71 publications

(23 citation statements)

References 15 publications

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“…). Generally, after shredding, waste paper is soaked in water and mixed with in a beater to separate the fibers through mechanical action to form slurry . The slurry will require a deinking process to remove the ink pigments, which, together with adhesives, are considered the most common type of pollutants of waste paper and that may have an effect on the final ethanol yield .…”

Section: Processing Of Waste Paper To Bioethanolmentioning

confidence: 99%

Waste paper to bioethanol: Current and future prospective

Al-Azkawi

Elliston²,

Al-Bahry

et al. 2019

Biofuels Bioprod Bioref

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Bioethanol is considered to be a possible substitute for non‐renewable fossil fuels. Biofuels, including bioethanol, are gradually replacing coal and oil for energy production. It is expected that, by 2040, fossil fuels’ contribution to the world's energy demands will only be 25% with the remaining contribution made up by biofuels. One of the major factors affecting ethanol production is the cost of raw materials, which can be substantially reduced by utilizing industrial or agricultural lignocellulosic wastes. Using waste paper as a feedstock for bioethanol production would reduce the production cost and may eliminate problems in managing this waste material in the environment. The cellulose, hemicellulose, and lignin in waste paper are less complicated and so only mild pretreatment is needed before enzymatic hydrolysis and fermentation. This review covers topics such as bioethanol as a promising alternative to petroleum fuels, feedstocks for bioethanol production, lignocellulosic technology and challenges for ethanol production, advantages and disadvantages of pretreatments methods, waste paper as feedstock for ethanol production, processing of waste paper to ethanol, and the different integration methods of hydrolysis and fermentation. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Processing Of Waste Paper To Bioethanolmentioning

confidence: 99%

Waste paper to bioethanol: Current and future prospective

Al-Azkawi

Elliston²,

Al-Bahry

et al. 2019

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

show abstract

“…This leads to accumulation of preservative anions and transient reduction in the pH level that can improve the ethanol yield. Dubey et al (2012) also produced ethanol from waste papers through dilute acid (0.5 N H 2 SO 4 ) treatment at 120°C for 2 h and obtained 3.73 g/L ethanol. Their novelty took the possibility of xylose fermentation as well as glucose with the aid of Pichia stipitis into account.…”

Section: Wastes To Bioethanolmentioning

confidence: 99%

Lignocellulose-Based Bioproducts

2015

Biofuel and Biorefinery Technologies

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“…A tecnologia para a produção de etanol a partir de material lignocelulósico é baseada principalmente no pré-tratamento, hidrólise química ou enzimática, separação do produto de fermentação e destilação (Dubey et al, 2012). O papel é um material lignocelulósico, cuja composição química varia de acordo com a madeira da qual foi originado.…”

Section: Introductionunclassified

Hidrólise Enzimática De Papel De Escritório Descartado Com E Sem Pré-Tratamento Com Ácido Sulfúrico Diluído

Rocha¹,

Alencar²,

Mota³

et al. 2015

Anais Do XX Congresso Brasileiro De Engenharia Química

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RESUMO -O objetivo deste trabalho foi realizar hidrólises enzimáticas de papel de escritório descartado com e sem pré-tratamento com ácido sulfúrico diluído, visando a produção de bioetanol. Foram realizadas hidrólises com 2, 4, 8 10 % m/V de sólido. A quantidade de enzima utilizada foi a mesma independente do aumento da massa de papel. As concentrações de glicose e xilose foram quantificadas por cromatografia líquida de alta eficiência. Houve aumento das concentrações destes carboidratos à medida que aumentou a massa de papel até 8 % m/V. Não foi possível retirar amostra nas hidrólise com 8 ou 10 % m/V e sem pré-tratamento, uma vez que não ocorreu a liquefação do papel. Maiores concentrações carboidratos foram obtidas na hidrólise com pré-tratamento e 8 % m/V, apesar de o rendimento ter sido menor do que quando foi utilizado 2 % m/V, provavelmente devido à quantidade de enzima ter sido a mesma para ambos os casos.

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Bioethanol production from waste paper acid pretreated hydrolyzate with xylose fermenting Pichia stipitis

Cited by 71 publications

References 15 publications

Waste paper to bioethanol: Current and future prospective

Waste paper to bioethanol: Current and future prospective

Lignocellulose-Based Bioproducts

Hidrólise Enzimática De Papel De Escritório Descartado Com E Sem Pré-Tratamento Com Ácido Sulfúrico Diluído

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