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Biogas production from Lignocellulosic Biomass (LB) via anaerobic digestion (AD) has gained attention for its potential in self-sustainability. ... Examples of physical treatments include irradiation, milling, ultrasonic treatment, and grinding. However, it's worth noting that physical treatment may not always be economically feasible for …
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This review explores the potential of ionic liquids (ILs) as green solvents and reagents for dissolving and fractionating lignocellulosic biomass into cellulose, …
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Mechanical grinding of lignocellulosic substances, such as wood and corn stover, typically leads to a fine particle size, various particle shapes, high specific surface area, and sometimes low cellulose …
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Due to the depletion of the world's petroleum resources and the need to reduce the emission of greenhouse gases in the atmosphere, the conversion of lignocellulosic biomass to chemicals and fuels has become a topic of intense research (Zhang et al. 2013a, b; Agirrezabal-telleria et al. 2014; Limayem and Ricke 2012).In this …
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Chipping reduces the biomass size to 10–30 mm while grinding and milling can reduce the particle size to 0.2–2 mm. ... The combined physical and chemical changes significantly increase the susceptibility of the pretreated lignocellulosic biomass to subsequent enzymatic hydrolysis (Dale et al. 1984; Dale and Moreira 1982; Galbe and …
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Lignocellulosic biomass is available in abundance as a renewable resource, but the major portion of it is often discarded as waste without utilizing its immense potential as an alternative renewable energy resource. To overcome recalcitrance of lignocellulosic biomass, various pretreatment methods are applied to it, so that the …
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The concept of lignocellulosic biomass conversion into value-added chemicals or materials is gaining in importance worldwide as a means of replacing conventional petrochemical resources for environmental sustainability. ... A customized fermenter featuring baffle plates and 4.8 mm stainless steel grinding balls was created …
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Agricultural residues, such as lignocellulosic materials (LM), are the most attractive renewable bioenergy sources and are abundantly found in nature. Anaerobic digestion has been extensively studied for the effective utilization of LM for biogas production. Experimental investigation of physiochemical changes that occur during …
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lignocellulosic biomass pyrolysis via equilibrium and ranking of the main process variables * Abstract — Pyrolysis of non-fossil fuels is raising a growing interest in the nowadays scenario for the alternative supply of energy, fuels and chemicals. Biomass is among the most widely available and technologically promising candidate feedstocks.
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associated energy consumption, particularly to dry biomass a er the grinding step, far too substantial to consider it a worthwhile pretreatment step (Fig. 1). ... dissociate lignocellulosic biomass: knife mill, hammer mill, pin millandcentrifugalmill,whichconsistofarotordrivingdi fferent tools. The rotor speed is …
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This paper shows that mechanical ultrafine grinding of poplar wood is an efficient pretreatment approach to enhance its reactivity during liquefaction. The microstructural features and chemical properties of biomass samples with different particle morphology were studied. In particular, we found that more cellulose and hemicellulose were …
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The utilization of lignocellulosic biomass is closely related to one of the renewable sources of energy. However, a few inherent properties of lignocellulosic biomass such as high moisture content, low density, high volume, and heterogeneous composition make it unfavorable for bulk transportation, storage, handling, and …
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Mechanical grinding of lignocellulosic substances, such as wood and corn stover, typically leads to a fine particle size, various particle shapes, high specific surface area, and sometimes low cellulose crystallinity, which depends on the grinding mechanism, grinding process conditions, and the type of raw material. Grinding the …
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Lignocellulosic biomass is obtained from a variety of sources like energy crops, agricultural waste, forest residue, ... while the size of the material after grinding and grinding is 0.2 to 2 mm. Found that vibrating ball mills are more useful than ordinary ball mills for reducing the crystallinity of cellulose and improving digestibility ...
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This research presents laboratory grinding data to evaluate the applicability of a set of generalized industrial-size reduction equations to the grinding of lignocellulose biomass. Batches of Douglas-fir (a soft wood) and hybrid willow (a hard wood) particles conditioned to 11.5% moisture content were ground in a rotary knife mill.
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Lignocellulosic biomass is a complex mixture of biomacromolecules that varies significantly from one specie to the other and even throughout the same specie depending on many aspects such as geographical location, season, soil, etc. Cellulose-based material is the most abundant source of renewable carbon on earth and the …
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The microstructural and thermo-optical characteristics of lignocellulosic Paulownia biomass were altered by ultrafine grinding, providing significant benefits for subsequent hydrolysis and hydrogen production (Yi et al., 2020). Recently, it has been reported that combined biological and mechanical treatments could boost the bioethanol …
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Gasification and enzymatic hydrolysis are the main technologies for converting lignocellulose biomass into products for the production of biofuels as a …
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Fabrication of Lignocellulosic Biomass Paper Containing Nanofibrillated Biomass. ... methods of making biomass papers and their mechanical properties using material obtained directly from ultra-friction grinding of milled biomass are investigated in this work. Because grinding produced fibers from the 45 µm to 5 nm range, the term 'biomass ...
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Lignocellulosic biomass is the most abundant and renewable material in the world for the production of biofuels. Using lignocellulosic biomass derived biofuels could reduce reliance on fossil fuels and contribute to climate change mitigation. ... Grinding biomass is an energy-intensive process. Energy consumption for grinding …
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The presence of the sturdy lignin protective sheath, complex structure, and partial crystallinity of cellulose often reduces the enzymatic susceptibility of …
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The mechanical properties of the biomass must be known for the design and optimisation of biomass grinding equipment, since the initial particle size, feed rate of the material, moisture content, and machine variables significantly influence the energy requirements for reducing the size of lignocellulosic material (Mayer-Laigle et al. …
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Grinding and chipping are the two most common size reduction operations applied to lignocellulosic biomass, with grinding being the most prominent. The term "grinding" is regularly used interchangeably with …
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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 (LCB) refers to plant biomass, which is the largest promising resource for the sustainable production of cellulose. ... In the grinder, the fibrillation mechanism is to disrupt the hydrogen bond and cell wall structure by shear forces and individualization of pulp to nanoscale fibres (Abdul Khalil et al., 2014).
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It is not possible to define the best pretreatment method as it depends on many factors such as type of lignocellulosic biomass, process parameters, environmental impact, economical feasibility, etc. ... (milling and grinding) are not economically feasible because of high-energy requirement. In this context, extrusion is a novel and promising ...
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Lignocellulosic substrates from crops residues are the principal feedstock for biogas generation and this process assists in effective waste management and as the …
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Mechanical pretreatments of lignocellulosic biomass: towards facile and environmentally sound technologies for biofuels production. ... They found that combined chemical-size-reduction pretreatments of forest biomass can reduce grinding energy consumption by 20–80%, depending on the utilised pretreatment under …
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The comminution of lignocellulosic biomass is a key operation for many applications as bio-based materials, bio-energy or green chemistry. The grinder used can have a significant impact on the …
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Lignocellulosic biomass is the most abundant renewable resource in the world. The availability of non-food biomass is estimated to be (170–200) × 10 9 tons per day [].In the current context of biorefinery and bioeconomy, lignocellulosic biomass is increasingly used to obtain various alternative products to those of petroleum origin, …
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