Thesis (Ph. D.)--University of Washington. / Bibliography: l. [196]-200.

Thesis (Ph. D.)--Columbia University. / Vita. Bibliography: p. 19.

No description available.

No description available.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1962. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Bibliography: leaves 128-133.

No description available.

The demand for accurate bitumen-pentane mass transfer data was the main motivation behind this research. Difficulties such as complex phase behavior, high viscosity and opacity of the hydrocarbon invariably lead to failure of conventional techniques to measure mass transfer coefficients involving heavy oils. To address this issue, X-ray transmission tomography has been employed for such measurements. The initial set of experiments in this study measured the free mutual diffusion coefficient of pentane-Athabasca/bitumen, as well as pentane-atmospheric residue. In addition, forced mass transfer between pentane and both bitumen and atmospheric residue was studied. Forced mass transfer between pentane and these two heavy oils followed a similar pattern when normalized and the pattern is consistent with prevailing understanding. However, mass transfer rates between pentane and Athabasca atmospheric residue are one order of magnitude smaller than for the corresponding bitumen case. Impacts on the effectiveness of proposed production and refining processes are discussed. / Chemical Engineering

Thesis (Ph. D.)--University of Chicago, 1929. / Lithoprinted.

This thesis examines the reactions of hydrocarbons exposed to chlorosulfonic acid in order to establish the reaction rate and associated molecular structure of each compound.

Dans ce manuscrit, nous avons décrit l'accès aux dérivés bicyclo[2.1.0]pentanes via deux réactions métalo-Catalysées, à savoir une cycloisomérisation d’énynes-1,6 catalysée par le platine et la cyclopropanation de cyclobutènes catalysée par le ruthénium à l’aide carboxylates propargyliques tertiaires. Tout d'abord, nous avons développé la formation, catalysée par Pt(II), de cyclobutènes à partir d’énynes-1,6 reliés par un hétéroatome (azote ou oxygène) pour former les aza- et oxa-Bicyclo[3.2.0]hept-6-Ènes respectivement. Il est montré que la présence de substituant(s) alkyle(s) en position propargylique et l'utilisation de solvants faiblement coordonnés, tels que le DMA sont les caractéristiques principales favorisant la formation de cyclobutènes. Ensuite, la disponibilité de cyclobutènes issus de la cycloisomérisation des 1,6-Énynes a permis leur utilisation pour la construction de systèmes bicyclo[2.1.0]pentanes par la mise en œuvre d’une cyclopropanation catalysée par le ruthénium utilisant les carboxylates propargyliques tertiaires. Ces composés sont obtenus sous la forme d’un diastéréomère unique avec des rendements bons à excellents. Cette réaction fournit une alternative sûre aux méthodes utilisant les dangereux composés diazo précurseurs de carbène pour générer les bicyclo[2.1.0]pentanes fonctionnalisés dans des conditions douces et avec des rendements élevés. / In this manuscript, we have described an access to bicyclo[2.1.0]pentanes via two metal-Catalyzed reactions, namely a platinum-Catalyzed cycloisomerization of heteroatom-Tethered 1,6-Enynes and the subsequent ruthenium-Catalyzed cyclopropanation of cyclobutenes with tertiary propargyl carboxylates.First, we have developed the Pt(II)-Catalyzed formation of cyclobutenes from nitrogen and oxygen-Tethered 1,6-Enynes to form aza- and oxabicyclo[3.2.0]hept-6-Enes respectively. It is shown that the presence of alkyl substituent(s) at propargyl position and the use of weakly coordinating solvents such as DMA are the key elements favoring the formation of cyclobutenes.Second, the availability of cyclobutenes from the cycloisomerization of 1,6-Enynes has allowed their utilization for the construction of strained bicyclo[2.1.0]pentane structures as single diastereomers in good to excellent yield through a ruthenium-Catalyzed cyclopropanation. It provides a safe method which avoid the use of the hazardous diazo compounds precursors of carbenes to generate functionalized bicyclo[2.1.0]pentane frameworks in high yields under mild conditions.