Ethanol Production from Lignocellulosic Biomass
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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(PDF) Development of Size Reduction Equations for ...
Naimi et al. [16] evaluated the applicability of three industrial-size reduction equations (Kick, Rittinger, and Bond) to the grinding of lignocellulosic biomass in order to estimate the needed ...
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Frontiers | Lignocellulosic Biomass: Understanding ...
Lignocellulosic biomass (LB) is an abundant and renewable resource from plants mainly composed of polysaccharides (cellulose and hemicelluloses) and an aromatic polymer (lignin). LB has a high potential as an alternative to fossil resources to produce second-generation biofuels and biosourced chemicals and materials without compromising global food security.
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Bioethanol Production from Lignocellulosic Biomass ...
An overview of the basic technology to produce bioethanol from lignocellulosic biomass is presented in this context. The conventional process includes two main steps. First, lignocellulose must be pretreated in order to remove lignin and enhance the penetration of hydrolysis agents without chemically destruction of cellulose and hemicellulose.
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Anaerobic Digestion of Lignocellulosic Waste Materials
Lignocellulosic biomass could contribute to the production of fuels and chemicals through different biological (anaerobic digestion, etc.), thermochemical (pyrolysis, ... decreasing the energy required and improving the efficacy of milling/grinding of biomass is of great importance to improve the finance and perspectives of the whole procedure.
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Molecular-level driving forces in lignocellulosic biomass ...
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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Increasing the revenue from lignocellulosic biomass ...
The conversion of lignocellulosic (nonedible) biomass to fuels and chemicals is a promising alternative to replace petroleum as a renewable source of carbon (); however, most of the proposed processes are currently unable to compete economically with petroleum refineries due, in part, to incomplete utilization of the biomass feedstock.An approach to improve …
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US6419788B1 - Method of treating lignocellulosic biomass ...
A multi-function process is described for the separation of cellulose fibers from the other constituents of lignocellulosic biomass such as found in trees, grasses, agricultural waste, and waste paper with application in the preparation of feedstocks for use in the manufacture of paper, plastics, ethanol, and other chemicals. This process minimizes waste disposal problems since …
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(PDF) Mechanical Pretreatment of Lignocellulosic Biomass ...
Lignocellulosic biomass (LB) sources which are readily available in abundance are widely considered as a potential future sustainable raw materials for biofuel production. ...
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Energy Consumption at Size Reduction of Lignocellulose ...
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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Fabrication of lignocellulosic biomass paper containing ...
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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Ultrastructural change in lignocellulosic biomass during ...
The grinding process, as physical treatment, partially affects the structure of lignocellulosic biomass, which was defended by Zhang et al. (Zhang et al., 2018), who observed an increase in the specific surface area (SSA) of over 1 m 2 g −1 and a decrease in the cellulose crystallinity (CrI) of about 34% with subsequent ultrafine grinding.
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Pretreatment methods of lignocellulosic biomass for ...
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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Multi-stage pre-treatment of lignocellulosic biomass for ...
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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Frontiers | Lignocellulosic Biomass: Understanding ...
12%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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(PDF) Peer-Reviewed Article Study of Enzymatic Hydrolysis ...
Lignocellulosic materials are related to abundant, renewable, and inexpensive natural sources. The estimated annual production of plant biomasses in the US is more than 1.3 billion tons per year (Perlack et al. 2005). Obtaining sugars from the lignocellulosic biomass is usually achieved by enzymatic hydrolysis.
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Ultrafine grinding of poplar biomass: effect of particle ...
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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(PDF) Mechanical Pretreatment of Lignocellulosic Biomass ...
Lignocellulosic biomass (LB) sources which are readily available in abundance are widely considered as a potential future sustainable raw materials for …
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Procedure for the production of ethanol from ...
1. Procedure for the production of ethanol from lignocellulosic biomass characterised in that it includes the stages of: Grinding the lignocellulosic biomass Subjecting the ground lignocellulosic biomass to steam explosion pre-treatment, maintaining at a pressure of between 1 and 3 MPa and a temperature between 190 and 230° C., for a period of time of between 1 …
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Production Of Biofuel From Lignocellulosic Biomass – IJERT
Pretreatment of different lignocellulosic biomass was done in the following manner: – (a) Prepare biomass samples as necessary (grinding, blending, etc.), weigh out 1g of biomass into a pre weighed aluminum tray (do replicates of this).
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Methods and devices for processing lignocellulosic biomass ...
CA-3109120-A1 chemical patent summary.
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Lignocellulosic biomass: a sustainable platform for the ...
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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Technology to convert biomass to biooil: challenges and ...
Global lignocellulosic biomass production from various sources (e.g., forestry and timber industry, agricultural activities) is estimated to be around 146 billion tons annually . The large number of feedstocks available and the ease to obtain them had provided a large potential for the sustainability for the operation of the industry and ...
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Optimization of the autoclave-assisted alkaline ...
Lignocellulosic biomass, which is a renewable and abundant resource, can be envisioned as the only sustainable resource for the production of chemicals (Mansur et al. 2014). ... Drying and grinding the material. The fresh CPH were cut into small pieces, dried in the sun for 48 h, and then further dried at a temperature of 60 °C in a hot air ...
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Kirupa Sankar, M., Ravikumar, R., Naresh Kumar, M. and ...
Kirupa Sankar, M., Ravikumar, R., Naresh Kumar, M. and Sivakumar, U. (2018) Development of Co-Immobilized Tri-Enzyme Biocatalytic System for One-Pot Pretreatment of Four Different Perennial Lignocellulosic Biomass and Evaluation of Their Bioethanol Production Potential. Bioresource Technology, 269, 227-236.
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Different Pretreatment Methods of Lignocellulosic Biomass ...
Lignocellulosic biomasses are carbon neutral and abundantly available renewable bioresource material available on earth. However, the main problem that hinders its frequent use is the tight bonding within its constituents that include cellulose, hemicellulose, and lignin. The selection of pretreatment process depends exclusively on the application.
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Impact of mixed lignocellulosic substrate and fungal ...
Our results showed that combination of grinding and sodium hydroxide (NaOH) treatment had high effect on the enzymatic hydrolysis of wheat straws. …
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Lignocellulosic agriculture wastes as biomass feedstocks ...
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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Biofuels from Lignocellulosic Biomass | BioEnergy Consult
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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THE EFFECT OF GRINDING LIGNOCELLULOSIC BIOMASS AS A …
THE EFFECT OF GRINDING LIGNOCELLULOSIC BIOMASS AS A MIXED-ACID FERMENTATION COTREATMENT An Undergraduate Research Scholars Thesis by DREW JAMAL SON MARKS Submitted to the Undergraduate Research Scholars program at Texas A&M University in partial fulfillment of the requirements for the designation as an …
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