Global ETD Search
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Showing 1 to 18 of 18 for “"biomass pretreatment"”.
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Biomass pretreatment toward efficient hydrolysis for sustainable biofuel applications
The production of biofuels from non-edible plant biomass has been necessitated by the concern for the environmental consequences of fossil fuel use and the tightening of supply and demand for liquid fuels. In contrast to first generation biofuels which rely on crops used for food supplies, second …
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In-situ 13C CM-MAS NMR study of dilute acid biomass pretreatment on 13C enriched poplar wood
… powdered poplar wood that is subjected to pretreatment with water and 0.5 M sulfuric acid as a function of time at 150 °C. 13C MAS (magic-angle spinning) spectra were obtained in both the CP (cross polarization) and DP (direct polarization) modes, the contrasts in this combination yielding …
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Nanomaterials from lignocellulosic biomass : tailorable synthesis via surface functionalization and self-assembly mechanisms
… presents an innovative lignocellulosic biomass-based refinery based on deep eutectic solvents (DESs) and specialized for biomass-based nanomaterials synthesis Particularly, this work has the focus on lignin nanoparticles (LNPs) and lignin-containing cellulose nanofibrils (LCNFs). First, …
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Pathway optimization and engineering for biofuel production
… identified as a promising route for efficient biomass utilization. Here we describe the simultaneous optimization of the β-glucosidase (gh1-1) and the cellodextrin transporter (cdt-1) through directed evolution of the pathway. The improved pathway was assessed based on specific growth rate on …
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The Effect of Pretreatment Methods on Methane Yield and Nutrient Solubilization During Anaerobic Digestion of Microalgae
<p>Microalgal biomass is a candidate feedstock for biofuel production. To improve the sustainability of algae biofuel production, following biofuel recovery, the biomass nutrients should be recycled for additional algae growth. Anaerobic digestion of algae or oil-extracted algae is a means of …
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Compounds Released from Biomass Deconstruction: Understanding Their Effect on Cellulose Enzyme Hydrolysis and Their Biological Activity
<p>The effect of compounds produced during biomass pretreatment on cellulolytic enzyme was investigated. Liquid prehydrolyzates were prepared by pretreating switchgrass using 24 combinations of temperature, time, and sulfuric acid concentration based on a full factorial design. Temperature was …
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CFD study of the combustion of innovative fuels in blast furnaces for sustainable iron making
… countermeasure for sustainable ironmaking. Biomass and hydrogen are regarded as promising renewable fuels to mitigate CO2 emission, and low-rank coal is regarded as flexible fuel to maintain the supply chain. Pulverised coal injection (PCI) technology has the readiness to accommodate these …
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Investigating biomass saccharification for the production of cellulosic ethanol
… ethanol from renewable lignocellulosic biomass has the potential to lead the bioindustrial revolution necessary to the transition from a fossil fuel-based economy to a sustainable carbohydrate economy. Effective release of fermentable sugars through biomass pretreatment followed by …
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Biopolymer Structure Analysis and Saccharification of Glycerol Thermal Processed Biomass
… thermal processing (GTP) is studied as a novel biomass pretreatment method in this research with the purposes to facilitate biopolymer fractionation and biomass saccharification. This approach is performed by treating sweet gum particles on polymer processing equipment at high temperatures and …
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Characterization of Cellulase Enzyme Inhibitors Formed During the Chemical Pretreatments of Rice Straw
… and inexpensive resource such as lignocellulosic biomass is a lucrative and sustainable option for the advanced biofuel and bio-based chemical platform. Agricultural residues constitute the bulk of potential feedstock available for cellulosic fuel production. On a global scale, rice straw is the …
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Lignocellulose Saccharification via Cellulose Solvent Based Fractionation Followed by Enzymatic Hydrolysis: the Last Obstacle to Integrated Biorefineries
… abundant renewable non-food lignocellulosic biomass will be vital to sustainable development because it will bring benefits to the environment, the economy, and the national security. The largest technical and economic challenge for emerging biorefineries is cost-effective release of …
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Effect of pretreatment on the breakdown of lignocellulosic matrix in barley straw as feedstock for biofuel production
Lignocellulosic biomass is composed of cellulose, hemicellulose, lignin and extraneous compounds (waxes, fats, gums, starches, alkaloids, resins, tannins, essential oils, silica, carbonates, oxalates, etc). The sugars within the complex carbohydrates (cellulose and hemicellulose) can be accessed …
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DEFATTED SEED CAKES RECOVERY TO INCREASE BIOFUEL PRODUCTION SUSTAINABILITY FROM SECOND-GENERATION OIL-CROPS
… environmental and economic sustainability. Biomass pretreatment optimisation was studied using two promising solvents, ethanolamine and chlolinium lysinate, in the pretreatment of Sorghum bicolor, Populus nigrum and Panicum virgatum. The combination of all three feedstocks pretreated with …
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Upgrading biomass by hydrothermal and chemical conditioning
There are two widely known thermal pretreatment technologies, known as hydrothermal carbonization and dry torrefaction. In dry torrefaction, also known as torrefaction or mild pyrolysis, dry solid biomass is treated in an inert gas environment in a temperature range of 200-300oC for more than one …
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Torrefaction and Steam Explosion of Selected Biomass for Biofuel Production
Lignocellulosic biomass has demonstrated great potential as feedstock for pellet production, notwithstanding the fact that the industrial production of pellet is faced with some economic challenges. Pretreatment research has been focused on identifying, evaluating, developing, and demonstrating …
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Adsorbent-based algal cultivation system to facilitate integration of algal biofuel production with wastewater treatment
… both wastewater treatment and sustainable algal biomass production at a reasonable cost. Chapter 3 investigated the benefits of integrating adsorbents into an algal wastewater treatment system and found that adding granular activated carbon (GAC) and/or zeolite was able to improve both the …
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Understanding the Role of Biomass and High Shear Bioreactor Parameters in Bioethanol Production
… the most abundant renewable resources on earth. Biomass generally contains 60-70% of cellulose and hemicellulose,which are not readily available for enzymatic hydrolysis, and hence, the pretreatment step, one of the most expensive steps in the conversion of biomass to biofuel, becomes inevitable. …