Fuel ethanol production from lignocellulosic biomass: An overview on feedstocks and technological approaches

Zabed, Hossain M.; Sahu, J.N.; Boyce, Amru Nasrulhaq; Faruq, Golam

doi:10.1016/j.rser.2016.08.038

Cited by 642 publications

(303 citation statements)

References 202 publications

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“…The majority of bioethanol are used as biofuel. Those bioethanol and the one used in alcoholic beverages as well are typically produced by fermentation process where certain species of yeast like saccharomyces cerevisiae or bacteria such as; zymomonas mobilis metabolize sugars in oxygen-lean circumstances to produce both ethanol and carbon dioxide [31,32].…”

Section: Bioethanolmentioning

confidence: 99%

See 1 more Smart Citation

Integration Approach of Anaerobic Digestion and Fermentation Process Towards Producing Biogas and Bioethanol with Zero Waste: Technical

Alrefai¹,

Ky²,

Stokes³

2017

J Fundam Renewable Energy Appl

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Section: Bioethanolmentioning

confidence: 99%

“…In general, the production of lignocellulosic ethanol involves several steps which are shown in Figure 2 and passes through five main stages [31]. These stages are; biomass pretreatment and/or detoxification, hydrolysis, fermentation and product recovery.…”

Section: Production Of Bioethanolmentioning

confidence: 99%

Integration Approach of Anaerobic Digestion and Fermentation Process Towards Producing Biogas and Bioethanol with Zero Waste: Technical

Alrefai¹,

Ky²,

Stokes³

2017

J Fundam Renewable Energy Appl

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“…Food, agricultural and some other industries release huge amount of waste and by-products, most of which has little or no economic value. Lignocellulosic waste biomass, such as straw, bran, stalk, stover, cob, shell, wood, saw dust, and bagasse are abundant potential feedstocks, however energy intensive and costly pretreatment processes are required for their utilization in bioprocesses (Zabed et al, 2016). Fruit wastes, on the other hand, contains easily fermentable monosaccharides as well as structural cellulose, hemicellulose, and pectin.…”

Section: Introductionmentioning

confidence: 99%

Utilization of White Grape Pomace for Lactic Acid Production

Bayrak¹,

Büyükkileci²

2018

GIDA

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White grape pomace (WGP) contains high amount of soluble carbohydrates (glucose and fructose), which can potentially be used as a carbon source in the fermentative production of bio-based chemicals. In this study, this waste was valorized by lactic acid (LA) production by Lactobacillus casei. Adding WGP directly into the culture medium at a solid loading of 10% yielded 33.3 g/L LA. Water extract of WGP allowed comparably faster LA production. Increasing the solid loading in the extraction step increased the LA titers, however, it had a significant negative effect on the production rate. In all cases, fructose was consumed at a slower rate as compared to glucose. Yeast extract powder was required at a concentration of 10 g/L to support LA production. Alternatively, baker's yeast was autolyzed and the lysate was successfully used as the nitrogen source. The findings show that WGP can be regarded as a sustainable plant-based feedstock for LA production by L. casei, however, the probable negative effect of other pomace constituents should be avoided. Keywords: grape pomace, lactic acid, autolysis, food waste valorization. BEYAZ ÜZÜM POSASININ LAKTİK ASİT ÜRETİMİNDE KULLANILMASI ÖZBeyaz üzüm posası (BÜP), biyo-temelli kimyasalların fermantasyonla üretimi için kullanılma potansiyeline sahip yüksek miktarda çözünmüş karbonhidrat (glikoz ve fruktoz) içerir. Bu çalışmada, bu atık Lactobacillus casei ile laktik asit (LA) üretilerek değerlendirilmiştir. BÜP kültür ortamına %10 oranında doğrudan eklendiğinde 33.3 g/L LA elde edilmiştir. BÜP'ün sulu özütü daha hızlı bir LA üretimi sağlamıştır. Özüt çıkarma aşamasında posa miktarının artırılması sayesinde daha fazla LA elde edilmiştir ancak, bu işlem üretim verimini kayda değer biçimde düşürmüştür. Tüm koşullarda fruktoz glikoza göre daha yavaş kullanılmıştır. LA üretimi için 10 g/L maya özütü tozu gerekmiştir. Buna alternatif olarak, ekmek mayası otolize uğratılmış ve bu lizat azot kaynağı olarak başarıyla kullanılmıştır. Bulgulara göre, BÜP'ün L. casei ile LA üretimi için sürdürülebilir bir kaynak olduğu düşünülebilir, ancak, posada bulunan diğer maddelerin olası olumsuz etkileri önlenmelidir. Anahtar kelimeler: üzüm posası, laktik asit, otoliz, gıda atıklarının değerlendirmesi.

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“…At present, it is predominantly a first-generation fuel, i.e., produced through established fermentation technologies from sugar or starch, essentially from corn and sugar cane. However, there is a growing interest in second-generation ethanol, i.e., produced through more sustainable technologies from lignocellulosic materials such as energy crops, aquatic plants, forests biomass, agricultural residues, municipal and industrial solid wastes [1][2][3]. Conventional fermentation processes yield ethanol-water diluted mixtures of 8% to 10% mole of ethanol [4], but improved technologies result in higher conversion, producing mixtures of 15% mole of ethanol [5].…”

Section: Introductionmentioning

confidence: 99%

Control Structures Evaluation for a Salt Extractive Distillation Pilot Plant: Application to Bio-Ethanol Dehydration

et al. 2017

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This paper addresses the challenge of evaluating control structures for a salt extractive distillation column producing absolute ethanol for use as biofuel. A sensitivity analysis aided with designing a pseudo-binary distillation pilot plant and examining the conceived process and the influence of the reflux ratio on both product purity and energy consumption. We compare three control structures for inferential tracking of the distillate composition: a dual-temperature control with an RV (reflux/boilup) structure and two single-end temperature control configurations, and their performance is measured using deterministic indicators. The result is the proposal of a pilot plant design for treating 15 kg/h of a diluted mixture with mole fraction of ethanol equal to 0.2 and assuming a column efficiency of 50%. The R/F (reflux to feed ratio) configuration is the best control structure, given that its corresponding performance indicators conduct lowest steady-state errors, less oscillating responses, and reduced settling times. For this configuration, the reflux flow rate is rationed to the feed flow rate, and the temperature is controlled manipulating the distillate flow rate. Even subject to perturbations, the energy consumption of the plant remains close to the nominal value. The three evaluated control structures consistently met international quality standards for fuel ethanol and enhanced the use of salts in ethanol dehydration.

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Fuel ethanol production from lignocellulosic biomass: An overview on feedstocks and technological approaches

Cited by 642 publications

References 202 publications

Integration Approach of Anaerobic Digestion and Fermentation Process Towards Producing Biogas and Bioethanol with Zero Waste: Technical

Integration Approach of Anaerobic Digestion and Fermentation Process Towards Producing Biogas and Bioethanol with Zero Waste: Technical

Utilization of White Grape Pomace for Lactic Acid Production

Control Structures Evaluation for a Salt Extractive Distillation Pilot Plant: Application to Bio-Ethanol Dehydration

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