Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 53 for “"bio-oil"”.
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Improvement of bio-oil stability in wood pyrolysis process
… thermochemical technologies that convert solid biomass into more useful and valuable bio-fuels. Pyrolysis is thermal degradation in the complete or partial absence of oxygen. Under carefully controlled conditions, solid biomass can be converted to a liquid known as bie-oil in 75% yield on dry …
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Catalytic pyrolysis of agricultural residues for bio-oil production
… plants, were employed as raw materials for bio-oil production via fast pyrolysis technology. There were two main objectives of this project. The first one was to determine the optimum pyrolysis temperature for maximising the organics yield and to investigate the properties of the bio-oils …
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Partial Upgrading of Lignocellulosic Bio-Oil via Deep Catalytic Hydrotreating
According to the International Energy Agency, bioenergy accounts for one-tenth of the world's total primary energy supply and biofuel production is forecasted to increase 25% by 2024. The bio-oil is composed of a complex mixture of oxygenated compounds with a relatively high concentration of water. …
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Catalystic Pyrolysis for the Production of Stable Phenol Rich Bio-Oil from Wood Biomass
Biomass studies over the last two decades shows its use as an alternate source for the production of chemicals and fuels. This can help in reducing our load on the conventional hydrocarbon use and be shared with renewable sources such as forest and agricultural wastes. In Saskatchewan, there is …
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A dielectrophoretic, microfluidic device for sorting lipid-producing organisms used as bio-oil sources
… as a hydrocarbon source for products such as biodiesel, nutraceuticals, and more. Thus, there is a global effort to select or genetically engineer microorganisms that produce higher proportions of lipids. Currently, screening is a laborious process and one of the primary bottlenecks to …
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Catalytic upgrading of biomass through the hydrodeoxygenation (HDO) of bio-oil derived model compounds
Lignocellulosic biomass is an attractive renewable source for fuels and chemicals. Of the many conversion alternatives, catalytic fast pyrolysis has emerged as an attractive technology to convert biomass into fuel additives and value-added chemicals. Current pyrolysis oils or bio-oils are …
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Fractional Catalytic Pyrolysis Technology for the Production of Upgraded Bio-oil using FCC Catalyst
… platforms used to produce high quality bio-oil and chemicals from biomass feedstocks. In the catalytic pyrolysis process, the biomass is rapidly heated under inert atmosphere in the presence of an acid catalyst or zeolite to promote deoxygenation and cracking of the primary vapors into …
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Catalytic Hydrodeoxygenation of Bio-Oil Model Compounds (Ethanol, 2-Methyltetrahydrofuran) over Supported Transition Metal Phosphides
… (HDO), a crucial step in the treatment of bio-oil, on transition metal phosphide catalysts. The study focuses on reactions of simple oxygenated compounds present in bio-oil -- ethanol and 2-methyltetrahydrofuran (2-MTHF). The findings from this project provide fundamental knowledge towards …
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LIQUID CHROMATOGRAPHIC/MASS SPECTROMETRIC INVESTIGATIONS OF BIO-OIL AND ADVANCES IN LASER-INDUCED ACOUSTIC DESORPTION FUNDAMENTALS AND INSTRUMENTATION
Dow, Alexander Russell. Ph. D., Purdue University, August 2015. Liquid
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Thermo-Chemical Conversion of Lignocellulosic Biomass to Liquid Biofuels
<p>The thermo-chemical conversion of biomass to hydrocarbons has been investigated for decades as an alternative to using petroleum-derived fuels. Equipment and feedstock have improved, but, biomass conversion efficiency and bio-oil quality still remain challenges. This study aims to investigate …
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Development of Heterogeneous Catalysts for Upgrading Biomass Pyrolysis Bio-Oils into Advanced Biofuels
… interest in alternative resources such as biofuels. The renewable biofuels can be upgraded from bio-oils that are derived from biomass pyrolysis. Catalytic cracking and hydrodeoxygenation (HDO) are two most promising bio-oil upgrading techniques for biofuel production. Heterogeneous …
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Fast microwave-assisted thermochemical conversion of biomass for biofuel production
… renewable energy sources. In this respect, biomass provides a carbon-neutral and sustainable solution. Pyrolysis and gasification belong to thermochemical processes which are currently the most appropriate and widely used among all the biomass utilization technologies. Microwave irradiation …
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Using bio-chars as potential catalysts for upgrading wood pyrolysis vapors
… conversion method to process lignocellulosic biomass to produce bio-oil that can be further refined into chemicals and fuels compatible with current petrochemical fuels. However, bio-oils are highly reactive and unstable and therefore must be refined immediately, thereby reducing process …
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Energy efficiency in dual fluidised bed fast pyrolysis
… the University of Pretoria for the conversion of biomass waste to biofuels. The dual fluidised bed design allows in situ catalytic upgrading of bio-oil, by providing the conditions required for the regeneration and decoking of catalysts. The first version of the CRIPS process (CRIPS 1) emphasised …
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High Pressure Micro-Scale Studies of Fast-Hydropyrolysis and Catalytic Hydrogenation of Biomass and Related Model Compounds
Biomass is a major source of renewable carbon which can be converted to hydrocarbon fuel with the aim of reducing the dependence on fossil based sources. Fast pyrolysis of biomass followed by catalytic hydrodeoxygenation of bio-oil is considered a promising biomass conversion route to produce drop …
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A COMPARATIVE FINANCIAL ANALYSIS OF FAST PYROLYSIS PLANTS IN SOUTHWEST OREGON
… increasing concerns about energy security, high oil prices, air quality from pile burning and climate change, there is great interest in examining ways to economically use these residues as a renewable energy source. Pyrolysis of forest biomass is one method that shows promise, though the …
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A COMPARATIVE FINANCIAL ANALYSIS OF FAST PYROLYSIS PLANTS IN SOUTHWEST OREGON
… increasing concerns about energy security, high oil prices, air quality from pile burning and climate change, there is great interest in examining ways to economically use these residues as a renewable energy source. Pyrolysis of forest biomass is one method that shows promise, though the …
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