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 “"Sc CO2"”.
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Supercritical Technologies for the Valorization of Wine Industry By-Products
… of grape seeds oil using supercritical CO2 (SC-CO2) and polyphenols from grape skins and defatted grape seeds using subcritical water (SW) and then, modeling of the kinetics of extractions and process economic analysis. The overall objective of the work is to develop recovery strategies …
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Glycerol from novel strains of halophytic microalgae
… using novel supercritical carbon dioxide (SC-CO2) extraction technology. Dunaliella and Asteromonas strains were shown to withstand large variations in the salinity of the growth medium 0.5 - 4.0 M NaCl. The optimum conditions for their growth were 1.0 M NaCl, 30 oC, pH 7.5 to 9.0 and 45 …
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Developing 1-D heat transfer correlations for supercritical water and carbon dioxide in vertical tubes
… up to 45 – 50%, the use of SuperCritical Fluids (SCFs) as working fluids in heat transfer cycles is proposed Generation IV designs. An important aspect towards development of SCF applications in novel Gen IV Nuclear Power Plant (NPP) designs is to understand the thermodynamic behavior and …
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Valorización de subproductos de la industria pesquera: obtención de derivados lipídicos ricos en ácidos grasos poliinsaturados y de concentrados de harina de pescado con bajo contenido en grasa
… poliinsaturados, así como de la tecnología del CO2 presurizado tanto para el fraccionamiento de los distintos compuestos lipídicos obtenidos en las reacciones enzimáticas como para la obtención de concentrados de proteína de harina de pescado con bajo contenido en grasa. Logrando en esta etapa …
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Small angle scattering characterisation of micellar systems and templated architectures
The work described in this thesis reports the structural changes induced on micelles under a variety of conditions. The micelles of a liquid crystal film and dilute solutions of micelles were subjected to high pressure CO2 and selected hydrocarbon environments. Using small angle neutron scattering …
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Deposition of Metal and Metal Oxide Thin Films from Metal Organic Precursors in Supercritical Carbon Dioxide Solution
… Analyzing techniques, X-ray photoelectron spectroscopy (XPS), ellipsometry, Fourier transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), and auger electron spectroscopy (AES) are adopted to characterize the films. Capacitance-voltage measurements are performed to prove the device …
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Environmentally Benign Extraction Processes in Analytical Separation of Essential Oils
… regulating bodies aimed at reducing the wide-scale use of organic solvents due to negative environmental impacts. Supercritical carbon dioxide (SC-CO2) is considered to be environmentally benign and has been used in the development of a wide-range of alternative processes in various industries …