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.
Results
Showing 1 to 20 of 63 for “"Transportation Fuels"”.
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Towards transportation fuels via hydrothermal liquefaction of biowaste
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2023-12-01
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Environmental and economic assessment of alternative transportation fuels
Alternative fuels have the potential to mitigate transportation's impact on the environment and enhance energy security. In this work, we investigate two alternative fuels: liquefied natural gas (LNG) as an aviation fuel, and middle distillate fuel derived from woody biomass for use in aviation or …
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Environmental and economic assessment of transportation fuels from municipal solid waste
… feedstock for the production of alternative fuels. Conversion of MSW to fuel could displace petroleum-derived fuels to mitigate greenhouse gas (GHG) emissions from transportation, and also avoid the GHG emissions associated with existing waste management strategies such as landfilling. This …
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Multi-criteria lifecycle evaluation of transportation fuels derived from biomass gasification
… first decade of the 21st century. Cellulosic biofuels have been identified as the primary candidate for meeting long term sustainability and energy security goals. In this thesis potential cellulosic biofuels produced via thermochemical processing are analyzed. Thermochemical processing utilizes …
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Investigation of the multi-physics of laser-induced ignition of transportation fuels
… and flame behavior of some engine-relevant fuels.</p> <p>This work investigates experimentally the early stages of the laser ignition process, characterizing breakdown and laser-induced shock waves. It then explores self-sustained flame behavior from early flame emergence to complete …
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Zeolite supported/non-noble metal catalysts for the deoxygenation of fatty acids to transportation fuels
… efforts emphasizing the conversion of biomass to transportation fuels are essential. Emissions from the transportation sector (~1/3 of U.S. total) contribute to elevated atmospheric CO2 giving increased global temperatures, weather phenomena, sea level rising, and oceanic acidification. While …
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Scenario based lifecycle analysis of greenhouse gas emissions from petroleum-derived transportation fuels in 2050
Petroleum-derived fuels made up 93% of the energy demand for the transportation sector in 2013, and are projected to remain a significant source in the future (65% to 90% in the year 2040) [1]. These fuels contribute significantly to global green house gas (GHG) emissions, both from their …
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Water consumption footprint and land requirements of alternative diesel and jet fuel
The Renewable Fuels Standard 2 (RFS2) is an important component of alternative transportation fuels policy in the United States (US). By mandating the production of alternative fuels, RFS2 attempts to address a number of imperfections in the transportation fuels market: US economic vulnerability to …
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Techno-economic analysis of jet fuel production from waste vegetable oil in Mexico
… that converts waste vegetable oils into transportation fuels in Mexico. The hydroprocessing technology selected produces predominately diesel and jet fuel that can be used and blended with the existing fossil fuel infrastructure. The analysis shows that a 4,000 BPD plant located in Mexico …
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The suitability of coal gasification in India's energy sector
… India the potential to produce a variety of fuels, particularly transportation fuels, and chemicals. These potential benefits would be useful in a country that has coal shortages, runs inefficient power plants, and imports the majority of its transportation fuels. Driven by these potential …
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Modeling Fischer Tropsch synthesis in two-phase, continuous, well-mixed slurry reactors
… of syngas (CO and H2) to cleaner liquid transportation fuels. The modelling of such a supercritical, highly non-ideal, multi-component system requires the detailed knowledge of the reaction mechanism, reaction kinetics, phase-equilibrium and reactor technology. The objectives of this work …
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Evaluation of the Greenhouse Gas Emissions of Oil Sands Upgrading Technologies Using a Novel Life Cycle-based Model
… bitumen and associated final products (e.g., transportation fuels) continues to grow, so do the environmental impacts associated with the life cycle of fuel production and use. This has motivated research on developing novel analytical methods that model these impacts on a life cycle basis. …
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Technology assessment of biomass ethanol : a multi-objective, life cycle approach under uncertainty
… crops as feedstocks for the production of transportation fuels, specifically, the use of corn grain and stover for ethanol production. The generic methodology integrates chemical process design and decision analysis tools. Four primary concepts are incorporated to address the performance of …
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Probing the Low Temperature Oxidation of Furanic Biofuels, 2-Methyltetrahydrofuran and 2,5-Dimethylfuran, Utilizing Orthogonal Time-of-Flight Mass Spectrometry Coupled to Synchrotron Radiation
… shifts has increased the focus of sourcing transportation fuels from depleting oil wells to regenerative, biological based solutions. One avenue of biologically sourced fuel involves the extraction of C5 and C6 sugars from the woody, fibrous, and inedible plant materials, otherwise known as …
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A study of configurational alternatives of a gas-to-liquids process based on Fischer-Tropsch technology
… and environmentally friendly routes to fuels. One alternative is to use Fischer-Tropsch Synthesis (FTS) as the major technology in conversion of carbon containing feedstock to transportation fuels. The FTS product, called syncrude, can be refined to high quality transportation fuels in …
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Utilization of cobalt catalyst for high temperature Fischer-Tropsch synthesis in a fluidized bed reactor
… data set at 7.05 and 3.18 % respectively. Liquid transportation fuels selectivity was the highest at 56.11 %.
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Life Cycle Assessment goes to Washington : lessons from a new regulatory design
… which caps the total carbon intensity of the transportation fuels sold in the state. Regulators measure the carbon value of different fuels on a fuel-cycle basis, including upstream extraction, processing, harvesting, conversion, and transport. California's recent experience indicates that, …
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The hydrocracking of Fischer-Tropsch wax : using n-tetradecane as a model compound
… stringent legislation has been applied to transportation fuels to minimise or eliminate aromatics and sulphur compounds in diesel fuel. This has led to manufacturers determining alternative production methods to comply to legislation. Part of the current diesel fuel is being produced by …
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An assessment of carbon sources for the production of synthetic fuels from nuclear hydrogen
In the transportation sector, the current dependence on petroleum to satisfy large transportation fuel demand in the US is unsustainable. Oil resources are finite, and causing heavy US reliance on oil imports. Therefore, the development of alternative transportation fuels that do not depend on oil …
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