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 7 of 7 for “"COMPRESSED CARBON DIOXIDE"”.
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Inactivation of Allergenic Proteins by Compressed Carbon Dioxide
… attention. It has been shown that supercritical carbon dioxide, a benign solvent, can kill a wide spectrum of living organisms, from easy-to-kill mammalian cells to hard-to-kill bacterial spores. Recently, carbon dioxide was proven to achieve more than 90% reduction in enzyme activity of trypsin, …
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Katalytische Festphasensynthese in Gegenwart von komprimiertem Kohlendioxid
In this work, the influence of compressed carbon dioxide on catalytic reactions on solid support was investigated. Pauson-Khand reactions (PKR) and hydrogenations were investigated representing reactions with gaseous substrates while the Baylis-Hillman reaction (BHR) was chosen because of its high …
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New strategies for multiphase catalysis using supercritical carbon dioxide
… using any volatile organic solvents but only carbon dioxide. In this case carbon dioxide has the function of mobile phase, increases the reactivity, dissolves reagents in the catalytic phase and allows products isolation in a solvent and metal free manner. As mobile phase, supercritical or …
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CO₂ compression for capture-enabled power systems
The objective of this thesis is to evaluate a new carbon dioxide compression technology - shock compression - applied specifically to capture-enabled power plants. Global warming has increased public interest in carbon capture and sequestration technologies (CCS), but these technologies add …
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Production of nanocrystalline rdx by ress : development and material characterization
… expansion of supercritical solutions (RESS). Compressed carbon dioxide was utilized as the solvent for RDX. Effect of key process parameters including the pre-expansion temperature and pressure, post-expansion pressure, and nozzle dimensions was investigated experimentally and via mathematical …
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Reverse Microemulsion System In Compressed Co2: Phase Behavior and Applications For Cleaning Biomaterials
<p>Compressed carbon dioxide (CO2), both in the supercritical and sub-critical regions, may be envisioned as a cleaning solvent for the decontamination of biomaterials and medical devices. However, the use of CO2 in cleaning processes is limited due to its low solvent capacity for polar substances, …
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Selektive Oxidationsreaktionen mit molekularem Sauerstoff in komprimiertem Kohlendioxid
… one the possibility for a synthesis of organic carbonates starting from alkenes, oxygen, carbon dioxide and aldehydes as coreductants was investigated. The first part of the consecutive reaction sequence-the stainless steel initiated synthesis of epoxides using O2/aldehyde mixtures in …