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 23 for “"Saturated hydrocarbons"”.
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Saturated hydrocarbons in marine plants and sediments.
Massachusetts Institute of Technology. Dept. of Geology and Geophysics. Thesis. 1966. M.S.
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Dynamics of Dissociative Chemisorption: Methane on Tungsten Single Crystal Surfaces
… However, for more complicated molecules, such as saturated hydrocarbons, chemisorption is often a slow process which involves thermal excitation over relatively high barriers. We have studied one such system: the dissociation of methane on clean tungsten single crystal surfaces. The purpose of …
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I. Bioanalytical Applications of Polymer Microfluidic Devices. II. Examination of Soft Vibrational Modes for Alkanes Adsorbed on Copper
Part II. The study of saturated hydrocarbons on metal surfaces continue to be of interest in order to understand molecule-surface interactions related to C-H bond activation. Interest has also been enhanced by the presence of a unique spectral feature, a broad vibrational mode that is shifted to …
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The low pressure hydrogenation of Midlothian coal
… consisted of 5 to 10 percent each of olefins and saturated hydrocarbons, with the remainder being aromatic compounds. 4. The rate of liquefaction of Midlothian coal by hydrogenation researched a nearly constant value of 0.41 grams of liquid product produced per 100 grams of coal per hour after 24 …
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Hindgut secretions in <I> Camponotus pennsylvanicus </I> (De Geer) (Hymenoptera: Formicidae): attractants and nitrogenous excretory materials
… observed to synthetic compounds (formic acid and saturated hydrocarbons) from the poison or Dufour's gland. Two volatiles, n-undecane and n-tridecane, were identified from the Dufour's gland. Fatty acids and esters were found to be ubiquitous in the Dufour's and poison glands. Palmitic acid was …
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Kinetic Study of Catalytic Partial Oxidation of Synthetic Diesel for Hydrogen Production
… route. The SD is composed of 75 vol.% saturated hydrocarbons and 25 vol.% aromatic hydrocarbons, with an average chemical formula resembling commercial diesel C[subscript 12.87]H[subscript 24.81]. The kinetic experiments were conducted at atmospheric pressure, in the temperature range …
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Probing the dynamics of radical reactions with polyatomic hydrocarbons by crossed-beam dc slice imaging
… reaction of radicals (Cl and CN) with polyatomic hydrocarbons of different functionalities such as pentane isomers, deuterated alkanes, alkenes, and alcohols. The reactively scattered alkyl radicals are probed as a function of collision energy using single photon ionization. The scattering results …
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The Separation of the Polar Constituents of Petroleum
… The method enabled fractions broadly defined as ‘saturated’ hydrocarbons; ‘aromatic’ hydrocarbons; basic nitrogen compounds; naphthenic acids; phenols and other oxygen-containing species; carbazoles; sulfoxides; and thiophenes, to be isolated reproducibly and quantitatively from relatively small …
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Studies on transition metal-catalysed oxidations with hydrogen peroxide as terminal oxidant
… part an iron-catalysed oxidation system for saturated hydrocarbons, using hydrogen peroxide as oxidant, has been developed, providing a promising tool for large-scale applications.The method exhibited great advantages: the reaction proceeds under truly catalytic conditions, the catalyst does …
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Volatile organic compounds in seawater
… oxidation of algal metabolites, for example, unsaturated fatty acids. Total volatiles in the oligotrophic Sargasso Sea were about 10-30 ng/kg while the biologically productive upwelling region off Peru contained up to 100 ng/kg. The temporal variations of volatile organic compound concentrations …
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High-Pressure Vapor-Phase Catalytic Hydrodeoxygenation of Lignin-Derived Compounds to Hydrocarbons on Bimetallic Catalysts in the Range of 0.2-2.4 MPa.
… <p>This dissertation focuses on production of hydrocarbons for use as both fuels and chemicals via high-pressure catalytic hydrodeoxygenation (HDO) of the lignin-derived fraction of biomass. Catalytic HDO is performed as a second-stage process to upgrade the intermediate lignin-derived …
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Surface Chemical Functionalization based on Plasma Techniques
… as a monomer for plasma polymerization, even saturated hydrocarbons, providing a great diversity of possible surface modifications. Among these compounds, Acrylic Acid is an important monomer, finding applications as a coating in a great number of biological experiments, for example, as a …
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