Lignocellulosic biomass. Biomass of lignocellulosic origin is the most abundant source of organic material on Earth. ... transportation, manipulation, storage, grinding or chipping to reduce the particle size and opening the fibrous material in order to transform it into a suspensión that may be pumped and enable the further ...

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1.Introduction. Lignocellulosic biomass is composed of carbohydrates (cellulose and hemicellulose), lignin, and other extraneous components (proteins, lipids, and inorganic substances) ().It is a renewable and abundant resource suitable for production of bio-based products such as biofuels and chemicals.

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Ultra-friction grinding of mechanical pulp (spruce groundwood) has been carried out to obtain wood nanofibers (WNF) to make lignocellulosic nanopapers (Visanko et …

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Lignocellulosic biomass. Lignocellulose refers to plant dry matter ( biomass ), so called lignocellulosic biomass. It is the most abundantly available raw material on the Earth for the production of biofuels, mainly bio-ethanol. It is composed of carbohydrate polymers ( cellulose, hemicellulose ), and an aromatic polymer ( lignin ).

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In this paper, lignocellulosic biomass was prepared using different mechanical fragmentation methods (including ultrafine and ordinary sieved grinding). The microstructural features and chemical properties of biomass samples with …

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Lignocellulosic biomass is an important source of renewable energy and a potential replacement for fossil fuels. ... After grinding, the ground biomass were sieved into particle sizes of 300 μm ...

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Lignocellulosic feedstocks present a growing interest in many industrial processes as they are an ecological alternative to petroleum-based products. Generally, the size of plant raw materials needs to be reduced by milling step(s), to increase density, facilitate transport and …

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The term "lignocellulosic biomass" is defined as lignin, cellulose, and hemicellulose that constitute the plant cell wall. Strong cross-linking associations are present between these components that cause hindrance in the breakdown of plant cell wall. Polysaccharides and lignin are cross-linked via ester and ether linkages [ 2, 3, 4 ].

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grinding, and milling to break the lignocellulosic . ... Lignocellulosic biomass is the most promising feedstock considering its great …

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Steam explosion. Steam explosion (SE) is a well-known technique for the pretreatment of various biomass feedstocks. During SE pretreatment, lignocellulosic material is exposed to a high-pressure saturated steam at a temperature of 160–260 °C and a corresponding pressure of 5–50 atm for a few minutes.

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During grinding, different mechanical stresses are generated by the grinder and they impact the propagation of fracture paths through the lignocellulosic biomass, leading to particles which differ in term of particle size, shape, surface roughness, and rheological properties, as discussed in the part I of this review [1,2,3].

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Lignocellulosic biomass can be pulverized by chipping, grinding, shearing, or milling, which reduces the particle size and increases surface area, facilitating the access of cellulases to the biomass surface and increasing the conversion of cellulose. Primary size reduction employs hammer mills or Wiley mills to produce particles that can pass ...

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Biomass Fractionation Technologies for a Lignocellulosic Feedstock-based Biorefinery reviews the extensive research and tremendous scientific and technological developments that have occurred in the area of biorefinering, including industrial processes and product development using 'green technologies', often referred as white biotechnology.. As …

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10%Lignocellulosic materials such as industrial, forestry and agricultural residues are one of the most promising, abundant and sustainable resources for biogas based energy [ 6 ]. Worldwide about 1600 million Mg of crop straw have been produced annually from the main agricultural crops such as wheat, rice and corn [ 7 ].

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The largest potential feedstock for ethanol is lignocellulosic biomass, which includes materials such as agricultural residues (corn stover, crop straws, husks and bagasse), herbaceous crops (alfalfa, switchgrass), short rotation woody crops, forestry residues, waste paper and other wastes (municipal and industrial).. Bioethanol production from these …

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Lignocellulosic biomass: a sustainable platform for the production of bio-based chemicals and polymers. Furkan H. Isikgor a and C. Remzi Becer * b a Department of Chemistry, Boğaziçi University, Bebek, 34342 İstanbul, Turkey b School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, E1 4NS London, UK.

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Carbon-neutral fuels from lignocellulosic biomass can play a significant role in mitigating challenges associated with climate change and meeting the planet's energy and material demands [1,2,3].However, the cell wall content of compounds resistant to the action of bacteria hinders the energy use of biomass, particularly in fermentation processes taking place under …

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The possible contribution by 2050 is estimated at 98 EJ/year of excess natural forest growth and at 32–52 EJ/year of processing residues. Although these lignocellulosic biomass resources represent a significant energy value, 150 EJ/year, only part of this resource can be used as feedstock for bioethanol, for reasons given below. 1.3.2.

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10%In this paper, lignocellulosic biomass was prepared using different mechanical fragmentation methods (including ultrafine and ordinary sieved grinding). The microstructural features and chemical properties of biomass samples with different particle morphology were analyzed.

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Milling/grinding, extrusion, microwave and ultra-sonication are common physical pretreatment methods that open up the physical structure of lignocellulosic biomass [41,42,43,44,45,46,47].Physico-chemical methods such as steam explosion, steam treatment, hydrothermolysis, ammonium fiber expansion, and hot water treatment cause both the …

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Abstract: In order to obtain bioenergy (biogas, biofuel) or pellets, di erent types of lignocellulosic biomass are subjected to a mechanical pretreatment, first by size reduction, then by separating, and ultimately by fracturing or bio-refining. Biomass processing mainly refers to a grinding process that occurs until reaching certain limits.

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The cell walls of plants are mostly composed of lignocellulosic biomass, which itself consists mainly of aligned bundles of partly crystalline and partly amorphous cellulose fibrils embedded in a ...

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Anthropogenic climate change, principally induced by the large volume of carbon dioxide emission from the global economy driven by fossil fuels, has been observed and scientifically proven as a major threat to civilization. Meanwhile, fossil fuel depletion has been identified as a future challenge. Lignocellulosic biomass in the form of organic residues appears to be the most …

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Biofuels from Lignocellulosic Biomass. Lignocellulosic biomass consists of a variety of materials with distinctive physical and chemical characteristics. It is the non-starch based fibrous part of plant material. Lignocellulose is a generic term for describing the main constituents in most plants, namely cellulose, hemicelluloses, and lignin.

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Steam explosion (SE) is a well-known technique for the pretreatment of various biomass feedstocks. During SE pretreatment, lignocellulosic material is exposed to a high-pressure saturated steam at a temperature of 160–260 °C and a corresponding pressure of 5–50 atm for a few minutes.

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Lignocellulosic biomass, on the other hand, would be a more effective alternative feedstock for biofuels because these would not divert food production resources. ... Mechanical grinding followed by exposure to fungi or bacteria was a very effective means of producing a high-yield hydrolyzed product. In addition, extraction could occur in low ...

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The utilisation of lignocellulosic biomass for the processing of novel composites has attracted growing interest due to its ecological and renewable …

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Lignocellulosic biomass-derived fuels, chemicals, and materials are promising sustainable solutions to replace the current petroleum-based production. ... The …

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Methods for Pretreatment of Lignocellulosic Biomass for Efficient Hydrolysis and ... or grinding.15 Vibratory ball milling was found to be more effective than ordinary ball milling in reducing cellulose Figure 3. Schematic of the conversion of lignocellulosic biomass to fuel.

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Abstract:In order to obtain bioenergy (biogas, biofuel) or pellets, di erent types of lignocellulosic biomass are subjected to a mechanical pretreatment, first by size reduction, then by separating, and ultimately by fracturing or bio-refining. Biomass processing mainly refers to a grinding process that occurs until reaching certain limits.

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