Production of Bioethanol in a Second Generation Prototype from Pine Wood Chips

Cotana, Franco; Cavalaglio, Gianluca; Gelosia, Mattia; Nicolini, Andrea; Coccia, Valentina; Petrozzi, Alessandro

doi:10.1016/j.egypro.2014.01.006

Cited by 65 publications

(30 citation statements)

References 25 publications

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“…The steam explosion pretreatment plant was described in a previous work by the same author [17]. The pretreatment conditions are described by the severity factor LogR0 [18] according to Equation (1):…”

Section: Biomass Pretreatmentmentioning

confidence: 99%

Sustainable Ethanol Production from Common Reed (Phragmites australis) through Simultaneuos Saccharification and Fermentation

et al. 2015

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Abstract:Phragmites australis (common reed) is a perennial grass that grows in wetlands or near inland waterways. Due to its fast-growing properties and low requirement in nutrients and water, this arboreal variety is recognized as a promising source of renewable energy although it is one of the least characterized energy crops. In this experiment, the optimization of the bioethanol production process from Phragmites australis was carried out. Raw material was first characterized according to the standard procedure (NREL) to evaluate its composition in terms of cellulose, hemicellulose, and lignin content. Common reed was pretreated by steam explosion process at three different severity factor (R0) values. The pretreatment was performed in order to reduce biomass recalcitrance and to make cellulose more accessible to enzymatic attack. After the pretreatment, a water insoluble substrate (WIS) rich in cellulose and lignin and a liquid fraction rich in pentose sugars (xylose and arabinose) and inhibitors were collected and analyzed. The simultaneous saccharification and fermentation (SSF) of the WIS was performed at three different solid loadings (SL) 10%, 15%, 20% (w/w). The same enzyme dosage, equal to 20% (g enzyme/g cellulose), was used for all the WIS loadings. The efficiency of the whole process was evaluated in terms of ethanol overall yield (g ethanol/100 g raw material). The maximum ethanol overall yields achieved were 16.56 and 15.80 g ethanol/100 g RM dry basis for sample AP10 and sample AP4.4, respectively. The yields were reached

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Section: Biomass Pretreatmentmentioning

confidence: 99%

Sustainable Ethanol Production from Common Reed (Phragmites australis) through Simultaneuos Saccharification and Fermentation

et al. 2015

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“…Concerning this aspect, a relevant ongoing experimental program is dedicated to producing bioethanol from residues at CRB labs [1][2][3][4] but also on other energy-from-biomass production technologies [5,6].…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanocrystals Obtained from Cynara Cardunculus and Their Application in the Paper Industry

et al. 2014

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Biorefinery aims at designing new virtuous and high-efficiency energy chains, achieving the combined production of biofuels (e.g., bioethanol) and biobased products. This emerging philosophy can represent an important opportunity for the industrial world, exploiting a new kind of nano-smart biomaterials in their production chains. This paper will present the lab experience carried out by the Biomass Research Centre (CRB) in extracting cellulose nanocrystals (NCC) from a pretreated (via Steam Explosion) fraction of Cynara cardunculus. This is a very common and invasive arboreal variety in central Italy. The NCC extraction methodology allows the separation of the crystalline content of cellulose. Such a procedure has been considered in the literature with the exception of one step in which the conditions have been optimized by CRB Lab. This procedure has been applied for the production of NCC from both Cynara cardunculus and microcrystalline cellulose (MCC). The paper will discuss some of the results achieved using the obtained nanocrystals as reinforcing filler in a paper sheet; it was found that the tensile strength increased from 3.69 kg/15 mm to 3.98 kg/15 mm, the durability behavior (measured by bending number) changed from the value 95 to the value 141, and the barrier properties (measured by Gurley porosity) were improved, increasing from 38 s to 45 s.

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“…Ethanol was chosen because it may be obtained by biomass fermentation in the prospect of a renewable hydrogen economy. Furthermore, second generation technologies allow for the production of bioethanol from non-food sources such as lignocellulosic biomass and agricultural residues [56,57]. Finally, we found that the hybrid action of light and ultrasound waves favors an appreciable synergistic effect in H2 production.…”

Section: Discussionmentioning

confidence: 73%

Hydrogen Production from Water by Photolysis, Sonolysis and Sonophotolysis with Solid Solutions of Rare Earth, Gallium and Indium Oxides as Heterogeneous Catalysts

Penconi

Rossi²,

Ortica

et al. 2015

Sustainability

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Abstract:In this work, we present the hydrogen production by photolysis, sonolysis and sonophotolysis of water in the presence of newly synthesized solid solutions of rare earth, gallium and indium oxides playing as catalysts. From the experiments of photolysis, we found that the best photocatalyst is the solid solution Y0.8Ga0.2InO3 doped by sulphur atoms. In experiments of sonolysis, we optimized the rate of hydrogen production by changing the amount of water, adding ethanol and tuning the power of our piezoelectric transducer. Finally, we performed sonolysis and sonophotolysis experiments in the presence of S:Y0.8Ga0.2InO3 finding a promising synergistic effect of UV-visible electromagnetic waves and 38 kHz ultrasound waves in producing H2. OPEN ACCESSSustainability 2015, 7 9311

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Production of Bioethanol in a Second Generation Prototype from Pine Wood Chips

Cited by 65 publications

References 25 publications

Sustainable Ethanol Production from Common Reed (Phragmites australis) through Simultaneuos Saccharification and Fermentation

Sustainable Ethanol Production from Common Reed (Phragmites australis) through Simultaneuos Saccharification and Fermentation

Cellulose Nanocrystals Obtained from Cynara Cardunculus and Their Application in the Paper Industry

Hydrogen Production from Water by Photolysis, Sonolysis and Sonophotolysis with Solid Solutions of Rare Earth, Gallium and Indium Oxides as Heterogeneous Catalysts

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