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 47 for “"HTL"”.
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Characterizing the effects of hydrothermal processes on bioactive compounds in wastewater bioenergy systems
… treatment with hydrothermal liquefaction (HTL) on the fate of emerging bioactive contaminants (i.e., pharmaceuticals, estrogenic compounds, antibiotic resistant genetic material, etc.) and the potential for wastewater reuse. We hypothesized and then confirmed that the elevated temperature …
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Experimental and modeling study for hydrothermal liquefaction of wet biowaste
… of wet biowaste hydrothermal liquefaction (HTL) process. Experiments in lab scale and pilot scale are conducted to investigate the reaction mechanism and overcome technical challenges. Technoeconomic analyses are performed to understand the economic feasibility of the process. The lab scale …
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Hydrothermal liquefaction of spirulina with aqueous phase recirculation
Hydrothermal liquefaction (HTL), an efficient thermochemical 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 …
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Hydrothermal liquefaction of microalgae: Influence of varying cell compositions on biocrude yield and quality
… as a feedstock. Hydrothermal Liquefaction (HTL) is a thermochemical process that uses water 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 …
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Effects of hydrothermal liquefaction on algal toxins from harmful algae blooms
… them into biofuel via hydrothermal liquefaction (HTL). A large coproduct of the HTL process is the aqueous product (HTLaq), which could be discharged back into the environment or recycled for beneficial reuse applications. The purpose of our study was to determine the effects of HTL and some post …
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Regulation of de-etiolation and stomatal opening responses by HYPOSENSITIVE TO LIGHT and HYPERSENSITIVE TO RED AND BLUE 1.
… component, HYPOSENSITIVE TO LIGHT or HTL. htl mutants displayed a long hypocotyl phenotype under red, far-red, and blue light, as well as other photomorphogenic defects. HTL belongs to an alpha/beta fold protein family and is localized predominantly in the nucleus. ELONGATED HYPOCOTYL5 …
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Hydrothermal liquefaction of wild-harvested cyanobacterial bloom from hypereutrophic Lake Tainter, Wisconsin
… generating biofuels hydrothermal liquefaction (HTL) and asserts that HTL is a uniquely practical technology for use of this biohazardous material. Using a wild-harvested cyanobacteria HAB from Lake Tainter, Wisconsin as a low-cost feedstock for HTL, the projected Minimum Fuel Selling Price of …
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Reaction mechanisms of hydrothermal liquefaction of model compounds and biowaste feedstocks
… demonstrated that hydrothermal liquefaction (HTL) could be an efficient technology that 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 …
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Extracting phycocyanin from spirulina and hydrothermal liquefaction of its residues to produce bio-crude oil
… bio-crude oil via hydrothermal liquefaction (HTL). The HTL bio-crude oil obtained from the original spirulina feedstock and the residual after the C-PC extraction were compared. A rapid and efficient process for extraction and purification of food-level C-PC from spirulina platensis was …
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Characterizing the fate and transport of chemicals of emerging concern (CECs) from swine manure during waste to energy processes
… conversions via hydrothermal liquefaction (HTL) and catalytic hydrothermal gasification (CHG), which were performed under 16 different conditions to study the effects of hydrothermal processes on the removal of bioactive CECs. Solid Phase Extraction (SPE) of estrogenic hormones and …
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Hydrothermal Liquefaction of Municipal Sludge: Feedstock Composition, Inorganic Interactions, and Co-Liquefaction as a Dewatering Alternative
… substances (PFAS). Hydrothermal liquefaction (HTL) is a near-term solution for wet sludge conversion because subcritical water tolerates the 96–99% moisture content of waste activated sludge (WAS) without the need for extensive drying. Three decades of HTL research have established robust …
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Biofuels from Liquefaction of Marine Microalgae: Production, Upgrading, and Environmental Impacts
… by photosynthesis. Hydrothermal liquefaction (HTL) of microalgae is a promising conversion technology in which algal biomass is treated as an aqueous slurry under high temperature and pressure. Because the HTL process uses the whole biomass, increasing lipid content during cultivation is not …
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Development of hybrid inorganic-organic light-emitting devices with metal oxide charge transport layers
… studied and evaluated as a hole transport layer (HTL) material. We then fabricated and characterized various hybrid light emitting diode (HyLED) structures comprising of---ZTO as an ETL, WO3 as a HTL, and MoO3 as a hole injecting layer (HIL). The device structures were optimized for better …
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Upgrading hydrothermal liquefaction biocrude oil from wet biowaste into transportation fuel
… 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 feedstocks, separation, esterification and neutralization of biocrude …
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Computational fluid dynamics modeling of a continuous tubular hydrothermal liquefaction reactor
… wastewater treatment. Hydrothermal liquefaction (HTL) is the key component in the technology. It involves the conversion of biowaste and algae into hydrocarbon fuels at elevated temperature and pressure. However, E2-Energy is not yet commercially feasible due to a lack of reliable, up-scaled HTL …
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Hydrothermal liquefaction of low-lipid microalgae to produce bio-crude oil
… intensive processes. Hydrothermal liquefaction (HTL) has been demonstrated to be an effective technology to produce bio-crude oil from different biowastes with high moisture content. Therefore, it is suitable to convert algae into bio-crude oil. In this study, two fast-growing, low-lipid, …
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Hydrothermal Liquefaction of Plastic as an Alternative Recycling Method
… technologies becomes increasingly urgent. HTL is a thermochemical process that decomposes plastics feedstocks using water as a medium under near-critical conditions to produce valuable liquid products. This work aims to investigate the valorisation of plastic waste using HTL, both as an …
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Visual Transfer Learning in the Absence of the Source Data
… is often called Hypothesis Transfer Learning (HTL) where the source data is absent. Therefore, these previous methods cannot be applied to many real visual transfer learning problems. In this thesis, we investigate the visual transfer learning problem under HTL setting. Instead of using the …
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Hydrothermal processes to recover energy and nutrients from liquid portion of swine manure
… for energy and nitrogen recovery revealed that HTL was unable to transform successfully the organics in the cLPAM into biocrude oil, as the highest biocrude oil yield was only 8.25% of volatile solids at 300 degree C/60 min, recovering 19% of the original energy in the LPAM. On the other hand, …
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Adsorbent-based algal cultivation system to facilitate integration of algal biofuel production with wastewater treatment
… 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 operational strategy aimed at maximizing …
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