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 13 of 13 for “"liquid hydrocarbons"”.
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Volatiles as a link between planetary interiors and the environment
… recorded in valley networks carved by rivers of liquid hydrocarbons.
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Catalytic membrane reactors for synthesis gas production from natural gas via partial oxidation.
Natural gas obtained during the extraction of liquid hydrocarbons is often undesired due to the lack of infrastructure to transport the natural gas to an onshore location. As a result the natural gas is often flared causing economic waste and environmental concern. It would therefore be desirable …
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ENHANCING GAS PHASE FISCHER-TROPSCH SYNTHESIS CATALYST DESIGN
… possible to achieve narrow distribution of the liquid products. The results employing Fe-Zn-K catalysts showed that an increase in pressure increased the mean carbon chain length. In contrast, an increase in temperature resulted in a decline in the average carbon chain length. Increasing the …
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Mechanical stratigraphy of the Vaca Muerta Formation, Neuquén Basin, Argentina
… geochemical analysis on the quality of the liquid hydrocarbons in the Vaca Muerta indicates that the middle interval has high volumes, with a moderate gas-to-oil ratio, and moderate viscosities (Williams Et al., 2014).
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Steam Electrolysis Coupled with CO2 Conversion in a Pressurized Proton Conducting Solid Oxide Electrolysis Cell
… an active Fischer-Tropsch cathode. Although no liquid hydrocarbons were produced at elevated pressures, the H-SOEC was able to synthesize CO, H2 and CH4 from steam and CO2. The electrochemical performance of this cell was modest with a maximum current density of 42 mA cm-2 (at 5 V), due to the …
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Ceramic Microreactors for on-Site Hydrogen Production
… promise for efficient catalytic reforming of liquid hydrocarbons at high temperatures for on-board generation of H2 for fuel cell applications, thereby avoiding the need for H2 storage and transport. The present challenges encountered in the reforming of hydrocarbons, such as propane, diesel, …
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Mercury species in natural gas condensate
… the determination of total mercury in complex liquid hydrocarbons. Samples (up to 1.0 ml) were vaporised (400oC) and swept through a gold-coated silica trap maintained at 200°C, which retained all mercury species and discarded the matrix. The trap when heated to 900°C released the mercury for …
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Geophysical properties of carbon monoxide when used as an enhanced oil recovery agent
… decreased production related to the mobility of hydrocarbons given the composition of the fluids and rocks, and the reservoir environment (ie: temperature and pressure). Enhanced oil recovery (EOR) efforts attempt to manipulate these conditions to reach profitable production and prolong the …
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Flame Studies on Conventional, Alternative, and Surrogate Jet Fuels, and Their Reference Hydrocarbons
… the flame propagation and extinction of various liquid hydrocarbon fuels, including conventional and alternative jet fuels, surrogate fuels, and their reference hydrocarbon components. The laminar flame speeds and extinction stretch rates are experimentally determined by using a twin-flame …
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Partial and Total Oxidation of Methane in Monolithic Catalysts at Short Contact Times
… the conversion of natural gas to methanol and liquid hydrocarbons and the production of H2. The combustion of natural gas is also considered for power generation in catalytic devices, because the flameless catalytic process results in lower emissions of NOx. Noble metals such as Pt, Pd, and Rh …
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Novel empowered supports for iron-based Fischer-Tropsch in a power-to-liquids process
… that converts carbon monoxide and hydrogen into liquid hydrocarbons 1 . In the past, FT synthesis has been used to produce gasoline and diesel from coal and natural gas. However, with increasing demand for renewable and sustainable energy sources, there has been renewed interest in using FT to …
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Conversion of waste organic carbon and nutrient streams to renewable fuels through integrated biological funneling and catalytic hydrothermal upgrading
… sludge) as feedstock to produce gasoline-grade liquid hydrocarbons. The goal of this thesis is to advance the overall understanding of technological pathways for the production of liquid hydrocarbon fuel blendstocks from wastewater organic carbon and effluent nutrient streams by addressing …
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CO AND CO2 HYDROGENATION BY FISCHER TROPSCH SYNTHESIS PROMOTED WITH IRON BASED HETEROGENEOUS CATALYSIS: DATA COLLECTION AND PROCESS DESIGN
… a holistic solution for upgrading CO2 into hydrocarbons, bridging existing gaps in the development of materials (e.g., Fe-based metallosilicates and hydrotalcites) that have been scarcely investigated to date. To this end, innovative iron-based catalysts were synthesized, tested under CO and …