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 950 for “"Methanol"”.
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Direct Methanol Fuel Cells Using Pure Methanol
… Of the various fuel cell types, direct methanol fuel cells (DMFCs) hold a set of distinct advantages for stationary and small portable applications. These advantages include faster refueling compared to battery charging, high gravimetric energy density, and ease of production and use …
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Combustion and emissions characteristics of methanol, methanol-water, and gasoline-methanol blends in a spark ignition engine
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Abnormal combustion - methanol versus gasoline
… The relatively higher knock resistance of methanol opens up possibilities for increased efficiency or engine size. The auto-ignition of methanol and gasoline was characterised in terms of fundamental parameters and the results were compared. The research findings were used in the analysis …
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Direct oxidation of methane to methanol
… catalysts that can directly oxidise methane to methanol are of great scientific importance. The total oxidation of methane to CO2 is considered for amorphous surface palladium oxide. A partially oxidised palladium surface is found to have both metal-like and oxide-like character. This peculiar …
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Mixed-feed methanol-oxygen fuel cells.
Massachusetts Institute of Technology. Dept. of Chemical Engineering. Thesis. 1966. Ph.D.
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The infrared spectrum of solid methanol
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemistry, 1948
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The Loss of Methanol Utilization in Methylobacteria
… would lose the ability to use Cl compound methanol after prolonged exposure to multi-carbon substrates. To determine this, the bacteria was grown on MR2A3 (multi-carbon substrates) and MOM (single-carbon substrates) for multiple generations and tested for loss of function on a series of …
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Characterization of gold catalysts for methanol synthesis
… it has been shown that the production of methanol from CO (and CO 2) can be catalysed by gold particles with crystallite sizes below 5nm (Haruta, 1997), this reaction has received comparatively little attention compared to the more extensively studied CO oxidation reaction. Testing was …
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Foam formation in a PMMA-methanol system
… solid-state foaming process employing PMMA and methanol was developed. The process is partly analogous to the CO2-based nanofoam development process, but experimentally more accessible. This foam and its development were characterized and important mechanisms in the process for nucleation and …
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The electrochemical reduction of formic acid to methanol
… IrO2. For the reduction of formic acid to methanol experiments, the 70:30 mol% IrO2:TaC electrocatalyst was used as the anodic electrocatalyst and polyaniline (PANI) as the cathodic electrocatalyst. In eight samples collected from five of the nine membranes which were prepared, methanol was …
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Direct methanol fuel cell catalysts with controllable interface
… for room temperature electrooxidation of methanol to prove the existence of Pt-oxophilic metal pair sites and to delineate their contributions to methanol eletrooxidation by bifunctional catalysis. Model bimetallic and multi-component catalysts with customizable and easily identifiable …
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Polymer electrolyte membranes for direct methanol fuel cells
… polymer electrolyte membranes (PEMs) for direct methanol fuel cells (DMFCs). In this thesis, relatively inexpensive monomers, 2-acrylamido-2-methyl propanesulfonic acid (AMPS) and 3-sulfopropyl methacrylate (SPM) in particular, were deployed as the proton source in a predominantly acrylic-based …
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The effects of higher oxygenates on methanol synthesis
… the effects of higher oxygenate species on the methanol synthesis performance of various methanol synthesis catalysts were examined. Experiments were performed whereby a selected higher oxygenate (such as a carboxylic acid) was co-fed into a methanol synthesis system at low concentrations, and …
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Development and characterization of methanol decomposition catalysts, The
Includes bibliographical references (pages 216-222).
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Simultaneous production of methanol and dimethylether from synthesis gas
… (indirect) process that involves synthesis of methanol by hydrogenation of CO/CO2 over a copper based catalyst and subsequent dehydration of methanol to DME over an acidic catalyst. Alternatively, DME can be produced in an one-step (direct) process using a hybrid (bifunctional) catalyst system …
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Phase Equilibria in Systems Containing Hydrocarbon, Water and Methanol
The role of methanol as a hydrate inhibitor has risen in industrial interest. It is found that methanol also stimulates production from retrograde gas condensate wells that show extensive productivity reduction because of near wellbore condensate buildup. The phase behavior of systems containing …
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The Direct Dissociation of Methanol on V(100) Surfaces
<p>The study of dissociating methanol on vanadium surfaces was investigated in order to provide insight into reaction pathways for methane dissociation and partial oxidation into other feedstock chemicals. The construction of a custom-designed ultrahigh vacuum chamber was done to permit surface …
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Methanol amination over hydrothermally treated zeolites RHO and Modernite
… on their own. The acid catalysed amination of methanol generally yields a thermodynamically controlled product distribution. The equilibrium distribution for mono-, di-, and trimethylamine (MMA, DMA, and TMA), at 325°C and a molar methanol to ammonia ratio of 1, is 17, 21, and 62 mol % …
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