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 28 for “"Synthetic fuels"”.
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Synthetic fuels for naval applications produced using shipboard nuclear power
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1995.
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Chemical Looping Applied to Synthetic Fuels Production via Solar Thermochemical Routes
L'abstract è presente nell'allegato / the abstract is in the attachment
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An assessment of carbon sources for the production of synthetic fuels from nuclear hydrogen
… the development of alternative transportation fuels that do not depend on oil is becoming increasingly necessary. Our research investigates the feasibility of producing gasoline synthetically from nuclear hydrogen and two carbon sources: carbon dioxide emissions and municipal solid waste. These …
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Methods for the economic evaluation of petroleum exploration and synthetic fuels production : an application to Brazil
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth and Planetary Science, 1982.
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Multi-vector Energy Systems Analysis for Heavy-duty Transportation Deep Decarbonization Using H₂ and Synthetic Fuels
… produced via electricity for displacing fossil fuels in difficult-toelectrify sectors. One such use case is heavy-duty transport, which represents a substantial and growing share of global transport sector emissions given the increasing electrification of the light duty vehicle fleet. Here, we …
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Characterization and chemical speciation modelling of saline effluents at Sasol Synthetic Fuels Complex-Secunda and Tukuta power station
The study shows conclusively that brine composition and concentration is highly variable at these South African power utilities and processes such as RO, contact with ash and CO2 ingress can have an impact upon the overall brine quality. Aq.QA was found to be a more accurate tool for classifying …
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Development and investigation of integrated solar systems for hydrogen and methanol production
… as well as the finite nature of fossil fuels necessitate the implementation of reliable and environmentally benign alternative energy options. This is particularly true for transportation and power generation sectors, which are responsible for the majority of carbon dioxide emissions. …
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The effect of water partial pressure on low temperature iron Fischer-Tropsch reaction rate, selectivity and catalyst structure
… a well-established process for the production of synthetic fuels, waxes and many other chemicals, yet there are many aspects that are still not totally understood. Controversy still exists as to what the active phase(s) is of the iron Fischer-Tropsch catalyst. A big drawback of the iron based …
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Transition metal oxide layered materials as catalyst and precatalyst for green energy applications: Oxygen evolution reaction and Fischer-Tropsch synthesis
Fossil fuels constitute 86% of global energy consumption. Even though fossil fuels have satisfied our energy needs for decades, they are non-renewable source of energy, and burning of fossil fuels is detrimental for the environment. Mining and extraction release toxic and heavy metals in the …
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Effects of O-Ring Elastomers with Conventional and Synthesized Aviation Fuels with a Novel Elastomer Dynamic Compression System
… fuel systems is of upmost importance as novel synthetic aviation fuels are introduced for use in aviation operations. The aim of this research is to investigate the reactions of common aviation O-rings with the leading candidates for conventional aviation fuel replacement. The experimental …
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An energy supply and demand model for South Africa
… - level of energy independence; - domestic synthetic fuels programme; - energy conservation policies; - alternative technology implementation. Energy planning in the past has been inadequate because of its segregated approach in treating each energy carrier, its lack of economic and …
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Evaluating energy consumption within Icelandic greenhouses : towards sustainable and efficient vegetable production
… country is working towards electrification and synthetic fuels production for the transportation sector. This shift will result in a higher electricity demand and put pressure on the grid. While creating new sources of energy is crucial to ensure a smooth transition, increasing energy efficiency …
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Thermodynamic evaluation of cobalt-ferrite based redox reactions for solar thermochemical conversion of CO2 into fuels
… thermochemical conversion of carbon dioxide into synthetic fuels represents a promising pathway for mitigating anthropogenic CO₂ emissions while enabling the production of carbon neutral energy carriers. This study investigates the use of cobalt ferrite (CoFe₂O₄) as a redox-active metal oxide for …
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A novel method to evaluate synthetic fuel options for gas turbines in terms of O-ring swelling
… 2008, Sasol was granted an approval to use fully synthetic jet fuel upon the publication of Defence Standard 91-91, Issue 6 [1]. Sasol's fully synthetic jet fuel is the only fuel in the world which had obtained the necessary approval for commercial use. The DEF STAN had an 8 minimum aromatic limit …
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Techno-Economic Modeling and Optimization of Hydrogen Supply Chain for Aviation Demand
… – the main ones under consideration are synthetic fuels (sustainable aviation fuels from biomass or power-to-liquid fuels from green hydrogen), and liquid hydrogen. This work considers the liquid hydrogen pathway and a flight network in Europe consisting of five countries and flights …
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The effect of hydrocarbon exposure and temperature on the behaviour of elastomeric seals
Synthetic jet fuels have been proposed as alternatives to petroleum Jet A-1. Compatibility issues, however, are of concern; specifically the interaction of synthetic fuels with polymeric materials which are commonly used to seal fuel systems. This is because of differences between the composition …
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The characterisation and cetane number determination of synthetic diesel fuels
South African synthetic fuel plants produce large quantities of lower alkenes which can be catalytically oligomerized to liquid transportation fuels. In the screening of experimental catalysts for the production of diesel-range fuels, it is important to measure the quality, as well as the quantity, …
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Fueled by crisis : U.S. alternative fuel policy, 1975-2007
… led to three "crash programs" for alternative fuels after energy shocks in the 1970s and early 2000s: (1) the proposed Energy Independence Authority in 1975-1976, (2) the Synthetic Fuels Corporation in 1979-1980, and (3) the revised Renewable Fuel Standard in 2007. These were massively …
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A technical, economic, and environmental assessment of Power-to-X applications for heavy-duty transport
… with a source of CO2, for the production of synthetic hydrocarbons. Power-to-X systems have been suggested as a novel pathway to indirectly electrify modes of transport where direct electrification is not technically feasible but there is still uncertainty surrounding it’s economic and …
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Past, present, and future climate impacts of aviation
… We consider the alternative energy carriers: synthetic fuels from biomass; synthetic fuels from green hydrogen and atmospheric CO₂; and the direct use of green liquid hydrogen. We also perform a meta-analysis to evaluate how these alternative fuels could affect the non-CO₂ impacts and how …
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