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 20 for “"biocrude"”.
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Upgrading hydrothermal liquefaction biocrude oil for sustainable aviation fuel
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Upgrading hydrothermal liquefaction biocrude oil from wet biowaste into transportation fuel
… is to develop viable technologies to upgrade biocrude oil converted from wet biowaste via hydrothermal liquefaction (HTL). Three types of feedstocks (algae, swine manure, and food processing waste) were converted into biocrude oil via HTL for upgradation processes, which includes pretreating …
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Hydrothermal liquefaction of microalgae: Influence of varying cell compositions on biocrude yield and quality
… as the reaction medium to convert biomass into biocrude oil under elevated temperatures and pressures (200–350°C, 5–20 MPa). While there is extensive literature on the separate processes of microalgae cultivation and HTL conversion, relationships between different biochemical compositions of a …
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Hydrothermal liquefaction for energy recovery from high-moisture waste biomass
… high-moisture waste biomass into energy dense “biocrude” oil that can be used for direct combustion or refined for transportation grade fuels. This study investigates the influence of biomass composition on the chemical characteristics of hydrothermal liquefaction biocrude oil, and the potential …
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Hydrothermal liquefaction of wild-harvested cyanobacterial bloom from hypereutrophic Lake Tainter, Wisconsin
… projected Minimum Fuel Selling Price of reformed biocrude produced from the Lake Tainter HAB is 18-29% lower than biocrude produced from cultivated algae. The biocrude produced is of sufficient yield and quality to realize a net energy profit making HTL an important environmental remediation …
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Experimental and modeling study for hydrothermal liquefaction of wet biowaste
… min) to convert categorized food residues into biocrude oil. The effects of different biochemical compositions of the feedstock on the biocrude oil production, energy balance, elemental distribution, and reaction mechanism are investigated. The mixture food waste yields 46.9 wt.% of biocrude oil …
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Biofuels from Liquefaction of Marine Microalgae: Production, Upgrading, and Environmental Impacts
… more likely act as stabilizers to reduce the biocrude viscosity and reduce the rate of viscosity increase as the biocrude ages. It is further shown that increasing the alcohol concentration in the co-solvent mixtures adversely affects the ability to isolate and quantify the HTL products. These …
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Hydrothermal processes to recover energy and nutrients from liquid portion of swine manure
… including hydrothermal liquefaction for biocrude oil production, and catalytic hydrothermal gasification for biogas production. Related analyses and estimations for energy and nitrogen recovery revealed that HTL was unable to transform successfully the organics in the cLPAM into biocrude …
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Hydrothermal Liquefaction of Municipal Sludge: Feedstock Composition, Inorganic Interactions, and Co-Liquefaction as a Dewatering Alternative
… retention in the biochar, and suppressed biocrude carboxylic-acid content. EBPR sludges stored aerobically and anaerobically exhibited different phosphorus partitioning despite similar bulk Ca:P ratios; 31P NMR supported a mechanism in which polyphosphate-bound Mg2+ released during HTL of …
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Adsorbent-based algal cultivation system to facilitate integration of algal biofuel production with wastewater treatment
… subsequently convert the wet mixed biomass to biocrude oil via hydrothermal liquefaction (HTL). Three different hydraulic retention times (HRT) were used to study the effects of nutrient loading on the removal of nutrients and biocrude oil yield. The results were used to develop an advantageous …
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Conversion of waste organic carbon and nutrient streams to renewable fuels through integrated biological funneling and catalytic hydrothermal upgrading
… by developing predictive relationships for HTL biocrude yield and other conversion product characteristics based on HTL of Nannochloropsis oculata batches harvested with a wide range of compositions and a defatted batch. A component additivity model (predicting biocrude yield from lipid, …
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Single droplet combustion of alternative fuels
… and alternative fuels, including butanol and biocrude from Algal. Droplet combustion experiments were performed to analyze the combustion characteristics of the fuels. Using the suspended droplet method, various droplet sizes were tested. The results show that combustion progresses through …
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PROCESS AND TECHNO-ECONOMIC MODELING FOR WASTE-TO-ENERGY PROCESSES TO IDENTIFY EFFECTIVE FACILITY SCALING
… the minimum fuel selling price (MFSP) of biocrude. Unlike traditional studies that assume static conditions, this research considers the dynamic nature of feedstock availability, storage, and biomass properties over time.Feedstock availability fluctuates seasonally and geographically, …
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Characterizing the fate and transport of chemicals of emerging concern (CECs) from swine manure during waste to energy processes
… in antibiotics, while converting biomass into biocrude oil with up to a 40.0% yield (dry basis) and a bio-char solid residue with a 12.0% yield (dry basis) using the HTL. In addition, the CHG process converted the same biomass to syn-gas with an average yield of up to 54.4% (dry basis). The …
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Hydrothermal Liquefaction of Plastic as an Alternative Recycling Method
… the repolymerisation of plastics and producing biocrude that could serve as an alternative to fossil fuels.
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Treatment of post hydrothermal liquefaction wastewater and suitability for hydroponic lettuce production
The hydrothermal-liquefaction of biowaste into biocrude oil has the potential to address the food-energy-water (FEW) nexus in junction with food production and water filtration using the wastewater from the process. This aqueous byproduct of the HTL process, post-hydrothermal liquefaction …
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Wastewater treatment high rate algal pond (WWT HRAP) biomass for low-cost liquid biofuel production
… were 15% and 47.4% for the pyrolytic bio-oil and biocrude respectively. While, HTL is a more favourable conversion process to maximise energy recovery from such a complex biomass, it was not feasible from an energy yield point of view at the tested conditions. Further investigations on the use of …
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Development of rotary reactor for evaluation of feedstock mixing effect on hydrothermal liquefaction
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Hydrothermal liquefaction of waste: understanding of reaction pathways and implementation
L'abstract è presente nell'allegato / the abstract is in the attachment
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Improving integrated systems for algal biofuels and wastewater treatment
The primary goal of this PhD work is to promote synergistic integration of wastewater treatment and algal biofuel production. In particular, we proposed and then analyzed the impacts of a novel integrated system that treats wastewater and maximizes the beneficial reuse of wastewater nutrients and …