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 11 of 11 for “"bio-crude oil"”.
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Hydrothermal liquefaction of wastewater algae mixtures into bio-crude oil
With the goal of incorporating bio-crude oil production and bio-waste treatment, an innovative Environmental-Enhancing Energy (E2-Energy) process was used during which mixed-cultured algal biomass from wastewater treatment system (AW) were converted into bio-crude oils. This study assesses the …
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Hydrothermal liquefaction of low-lipid microalgae to produce bio-crude oil
… as suitable feedstocks for next-generation biofuel production because of their fast growth rates and prolific yields. Moreover, growing algae has less impact on land-use for food production compared with grain and other lignocellulosic biomass. However, current lipid-to-biodiesel technology …
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Extracting phycocyanin from spirulina and hydrothermal liquefaction of its residues to produce bio-crude oil
Microalgae is a promising biofuel source with high photosynthetic efficiency, and it often contains high-value substances for nutritional, pharmaceutical and medical applications. In order to improve the economic viability of the spirulina utilization, this study investigated a cost competitive …
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Characterization of biofuel from diatoms via hydrothermal liquefaction
… to utilize low lipid microalgae to produce bio-crude oil. Diatoms are a major group of microalgae in water bodies with a high growth rate and that contribute about 20% of global primary production. Their unique frustule (silica cell wall) results in a high ash content (39% dry weight). This …
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Reaction mechanisms of hydrothermal liquefaction of model compounds and biowaste feedstocks
… can not only reduce COD and pollutants in the bio-wastes but also generate valuable renewable bio-crude oil from many biomass sources. Previously, swine manure has been successfully converted into bio-crude oil through HTL with yield as high as 70% of the volatile solids at the University of …
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Hydrothermal liquefaction of spirulina with aqueous phase recirculation
… conversion technology, can produce biofuels from biomass, but also a large amount of processing wastewater. This study mainly focuses on the recirculation of the aqueous phase from HTL in order to effectively address the aqueous phase treatment problems. Spirulina, a kind of high …
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Improving algal biofuel production through nutrient recycling and characterization of photosynthetic anomalies in mutant algae species
… remain to be solved for scaling-up of algal biofuel production. This dissertation has examined two innovative approaches to improve algal biofuel production: (1) an integrated waste to algae biofuel production process that recycles wastewater nutrients into multiple cycles of algal growth, …
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Modeling and Analysis of a Feedstock Logistics Problem
… (1) to reduce the nation's reliance on foreign oil, (2) to mitigate emission of greenhouse gas, and (3) to create an economic stimulus within the United States. Switchgrass is the biomass of choice for the Southeastern United States. In this dissertation, we address a feedstock logistics problem …
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Augmented growth of haematococcus pluvialis using nutrients from post hydrothermal liquefaction wastewater (PHWW)
… an attractive process for the conversion of wet biomass to bio-crude oil. Using recycled nutrients from the post HTL wastewater (PHWW) or other wastewater sources for growing algae can reduce costs and synthetic nutrient inputs, which improves the sustainability of algae cultivation operations. …
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Improving integrated systems for algal biofuels and wastewater treatment
… 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 organics to produce bio-crude oil. Centered around this …
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Characterizing the effects of hydrothermal processes on bioactive compounds in wastewater bioenergy systems
… of the water quality effects of thermochemical bioenergy production processes that can be applied to wet organic-laden wastes, such as animal manures, municipal wastewater, and food processing wastes. In particular, we analyzed the impacts of a novel integrated process combining algal wastewater …