Pilot technology of ethanol production from oat hulls for subsequent conversion to ethylene

Скиба, Е. А.; Baibakova, O. V.; Будаева, В. В.; Pavlov, Igor N.; Vasilishin, M. S.; Makarova, E. I.; Сакович, Г. В.; Овчинникова, Е. В.; Банзаракцаева, С. П.; Vernikovskaya, N.V.; Чумаченко, В. А.

doi:10.1016/j.cej.2017.05.182

Cited by 35 publications

(27 citation statements)

References 60 publications

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“…However, in each of these steps, there are difficulties in process scale-up. 140 Several studies have been done to address some of these issues. For instance, Aditiya et al 141 suggested a concurrent saccharification and fermentation process together with delayed inoculation of the pretreated biomass as an effective method to improve ethanol yield.…”

Section: Ethylenementioning

confidence: 99%

Next‐generation biofuels and platform biochemicals from lignocellulosic biomass

Okolie

Mukherjee

Nanda

et al. 2021

Intl J of Energy Research

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Rapid industrialization, increasing fuel prices, exhausting fossil fuel resources and greenhouse gas emissions are some of the factors instilling the search for alternative sources of energy and chemicals. Lignocellulose biomass-derived biofuels and biochemicals have emerged as clean products to complement fossil-based resources and reduce environmental impacts. Lignocellulosic biomasses are renewable, inexpensive and abundantly available resources to produce a wide variety of liquid, gaseous and solid biofuels and industrially relevant biochemicals. Different biological (e.g., fermentation and anaerobic digestion), thermochemical (e.g., liquefaction, gasification and pyrolysis) and catalytic (e.g., transesterification) conversion technologies can be used to produce fuel and chemical products from lignocellulosic biomass. This article makes a comprehensive review of different biofuels (e.g., biodiesel, bio-oil, bioethanol, biobutanol, biogas, hydrogen, syngas and jetfuel) and value-added biochemicals (e.g., propylene, ethylene, benzene, 5-hydroxymethylfurfural, levulinic acid, succinic acid, maleic acid, fumaric acid, phenols and other aromatic compounds) from lignocellulosic biomass. Additionally, the current status, challenges and future perspectives for the production and utilization of biofuels and biochemicals are systematically discussed.

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Section: Ethylenementioning

confidence: 99%

Next‐generation biofuels and platform biochemicals from lignocellulosic biomass

Okolie

Mukherjee

Nanda

et al. 2021

Intl J of Energy Research

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“…Oat straw and husks were investigated for the production of biogas [10], xylanase [11], xylitol [12], ethanol [12,13], bacterial cellulose [14][15][16], hydrogels [17], and polypropylene composites [18]. The pretreatment strategies to overcome lignocellulosic recalcitrance mostly included dilute-acid pretreatment using sulfuric acid [11,19] and nitric acid [13,[20][21][22][23], which exhibited the highest impact on dissolution of hemicellulose, and dilute-alkali pretreatment using sodium hydroxide [17,24] and ammonium hydroxide [25], which showed the highest impact on delignification. The use of concentrated salts solutions such as sodium benzoate [26] were also investigated for delignification.…”

Section: Introductionmentioning

confidence: 99%

Biorefining Oat Husks into High-Quality Lignin and Enzymatically Digestible Cellulose with Acid-Catalyzed Ethanol Organosolv Pretreatment

2020

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Oat husks are low-value lignocellulosic residues of oat processing that carry an environmental impact. Their polymers (cellulose, hemicellulose, and lignin) can be converted into a wide variety of value-added products; however, efficient pretreatment methods are needed that allow their fine separation for further tailored valorization. This study pioneered the use of milling-free and low acid-catalyzed ethanol organosolv for the delignification of oat husks, allowing their conversion into three high-quality streams, namely, glucan-rich, lignin-rich, and hemicellulosic compound-rich streams. Temperature, retention time, and solid-to-liquid ratio were found to impact the delignification of oat husks when using a one-factor-at-a-time strategy. The ideal conditions that were found (210 °C, 90 min, and solid-to-liquid ratio of 1:2) culminated into glucan and lignin fractions containing 74.5% ± 11.4% glucan and 74.9% ± 7.6% lignin, respectively. These high-purity lignin fractions open the possibility for higher value applications by lignin, potentially impacting the feasibility of second generation biorefineries. The glucan fraction showed 90% digestibility after 48 h of hydrolysis with 10 filter paper units of enzyme cocktail per gram of glucan. Considering the absence of size reduction and high solid loading, together with the quality of the obtained streams, organosolv pretreatment could be a potential strategy for the valorization of oat lignocellulosic residues.

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“…In particular, the production of bioethanol is increasingly involving the replacement of edible raw materials with nonedible raw materials (Bai, Anderson, & Moo‐Young, ; Galbe & Zacchi, ; Lynd, Weimer, van Zyl, & Pretorius, ; Skiba, Mironova, Kukhlenko, & Orlov, ; Taherzadeh & Karimi, ; Zheng, Pan, & Zhang, ). In this context, the most promising raw material is the waste from agricultural processes (straw of cereals, oil‐palm bunches, sunflower husks) and plants with a high growth rate and abundant green mass, for example, miscanthus (silver grass; Denisova, Makarova, Pavlov, Budaeva, & Sakovich, ; Gaveau, Balzter, & Plummer, ; Ge, Burner, Xu, Phillips, & Sivakumar, ; Makarova, Budaeva, Skiba, & Sakovich, ; Skiba et al, , ; Sorensen, Teller, Hilstrom, & Ahring, ).…”

Section: Introductionmentioning

confidence: 99%

Current achievements in the mechanically pretreated conversion of plant biomass

Bychkov

Podgorbunskikh

Bychkova

et al. 2019

Biotech & Bioengineering

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At present, “mechanochemistry” is synonymous with “grinding,” according to the views of a significant number of scientists and technologists. Often, one comes across the opinion that “the less the particle size, the better.” The cases of considering chemical reactions occurring during pretreatment, as well as considering changes in the ultrastructure of cell walls are extremely rare. Also, the wrong choice of the type of mechanical impact and the equipment used in most cases leads to excessive consumption of electrical energy and reduce economic efficiency. The review presents the currently available published data on mechanically activated processes for the pretreatment of plant materials and shows that when using mechanical treatment, it is necessary to look more closely at the phenomena occurring, rather than reducing everything to the production of fine and ultrafine powders. As a result of mechanical action, active surface radicals can form, hydrothermal chemical processes can occur, and mechanocomposites can form. The role of interphase processes, changes in surface chemistry, related dimensional effects, and the disordering of the crystal structure and amorphization should be taken into account. In addition, the physicochemical insights in mechanical pretreatment make it possible to more efficiently use the energy delivered to the material, and, consequently, increase the economic efficiency of the activation process.

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Pilot technology of ethanol production from oat hulls for subsequent conversion to ethylene

Cited by 35 publications

References 60 publications

Next‐generation biofuels and platform biochemicals from lignocellulosic biomass

Next‐generation biofuels and platform biochemicals from lignocellulosic biomass

Biorefining Oat Husks into High-Quality Lignin and Enzymatically Digestible Cellulose with Acid-Catalyzed Ethanol Organosolv Pretreatment

Current achievements in the mechanically pretreated conversion of plant biomass

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