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 33 for “"oxidation catalyst"”.
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Hydroquinone as an oxidation catalyst
Thesis (M.S.)--Michigan State College of Agriculture and Applied Science, 1926
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Oxidation catalyst degradation in the exhaust stream of a large bore 2-stroke natural gas engine
… compounds and some unburned hydrocarbons. Oxidation catalysts aid in reducing these harmful emissions. Lubrication oil carryover to engine exhaust degrades the oxidation catalyst making it less effective at reducing emissions. This work combines laboratory and field testing of an oxidative …
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After treatment and turbocharger effects on emissions of a diesel engine
… for emission reduction was to combine the Diesel Oxidation Catalyst and the Diesel Particulate Filter to form a Continuously Regenerating Trap. These after treatments would be combined with the use of a turbocharger and air capacitor to ensure that the back pressure doesn't take away too much …
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Reduction of natural gas engine emissions using a novel aftertreatment system
… without the particulate matter (PM) filter and oxidation catalyst (OC) combination, which was designed and developed by West Virginia University in collaboration with Lubrizol-ECS. Central Business District (CBD) Cycle tests were performed on West Virginia University's Transportable Emissions …
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Materials Characterization and Spectroscopy for a Methane Abatement Catalyst
… a specific copper-zeolite (mordenite) methane oxidation catalyst for long-term durability and potential performance at 400 and 950 C. Using materials characterization and spectroscopy techniques including scanning-electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), …
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Experimental and DFT study on selective oxidation of 5-Hydroxymethyl furfural over cadmium sulfide catalyst
… reduce dependency on conventional fossil fuels. Oxidation of 5-hydroximethyl furfural (HMF) is considered one of the most important biomass conversions, which resulted into value added 2,5-diformylfuran (DFF), 2,5-furandicarboxylic acid (FDCA), 5-hydroxymethyl-2-furancarboxylic acid (HMFCA), and …
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The Effect Of Biodiesel Blends On A Multi-Cylinder Engine And The Impact On Aftertreatment
… a multi-cylinder engine coupled with a diesel oxidation catalyst, diesel particulate filter and a selective catalytic reduction catalyst and the effect that biodiesel blends has on their performance and effectiveness.</p>
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Ozone Decomposition and Acetone Oxidation on Manganese Oxide Catalysts
… and characterization of manganese oxide catalysts and their application in the oxidation of acetone, a typical volatile organic compound (VOC), and ozone decomposition. This topic is of great value because of environmental concerns of the elimination of the harmful VOCs and ozone. …
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Encapsulation of iron(III) protoporphyrin IX and tetraphenylporphyrin in metal-organic frameworks for application as heterogeneous oxidation catalysts
… in it being an inappropriate choice as an oxidation catalyst. The kinetics of ABTS oxidation by H2O2 catalysed by Fe(III)PPIX-1 were further investigated. The peroxidatic activity of this heterogeneous system conforms to a rate law identical to that observed in solution with no discernible …
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Optimizing power cylinder lubrication on a large bore natural gas engine
… engine emissions with an emphasis on reducing oxidation catalyst poisoning. A traditional power cylinder lubricator was analyzed; power cylinder lubricating oil was found to significantly impact exhaust emissions. Lubricating oil was identified as the primary contributor of particulate matter …
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Design and Evaluation of a Marine Scrubber System
… diesel particulate filter and diesel oxidation catalyst for oxidation of nitric oxide to nitrogen dioxide, a heat exchanger for exhaust gas temperature reduction, a scrubber unit for NOX gas absorption, and a liquor pump for liquor recirculation.;The system was tested with a 1992 Mack …
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Performance evaluation of diesel particulate filters on heavy-duty vehicles
… have a wall flow filter element downstream of an oxidation catalyst, which oxidizes a portion of the NO present in the exhaust stream to form NO2. The resulting NO2 aides in the combustion of the soot collected in the wall flow filter element allowing for the complete breakdown of the soot within …
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Enhanced Methane Oxidation Catalysis Through Feed Modulation And Oxygen Storage
… development and optimization of novel methane oxidation catalyst. In this project, the catalytic oxidation of methane is examined under lean and stoichiometric conditions across several catalysts and how feed modulations can enhance catalyst performance. In the first section of this project, …
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The effect of complexes on combustion
… addressed by research in both the motor and the catalyst industries of the world. This study was designed to attempt to investigate these goals. For diesel engine vehicles, this can be achieved by improving the efficiency of the fuel combustion in the combustion chamber. By having a suitable …
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Utilizing viruses to probe the material process - structure - property relationship : controlling catalytic properties via protein engineering and nanoscale synthesis
… a non-petrochemical based energy infrastructure, catalysts play an important role in meeting the increasing energy and consumable demands of today without compromising the global health of tomorrow. Development of these catalysts relies on the fundamental understanding of the effects individual …
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Zirconium-Based Metal-Organic Frameworks for Artificial Electrochemical Photosynthesis
… orange color in the standard RuII state and upon oxidation to RuIII it is pale green. The change in absorption profile of the redox center allows for the rate of oxidation to be determined through absorbance measurements. The material showed minimal change in absorbance upon applying an oxidative …
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Fluorinated Metallo Phthalocyanines for Chemical and Biological Catalysis
<p>The rational design of robust oxidation catalysts based on organic molecules is hindered by the presence of labile C-H bonds. We have shown recently that replacing all C-H bonds by a combination of fluoro- and perfluoro-groups in a bioinspired Cytochrome P450 model based on a phthalocyanine, Pc, …
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The effect of alternative fuels and aftertreatment devices on measured mobile school bus emissions
… Two diesel particulate filters and one diesel oxidation catalyst were also tested.</p> <p>In order to evaluate the reductions, all tests were performed using a drive cycle developed by Rowan University. This drive cycle is a composite cycle developed from 11 actual school bus routes. The …
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