Sökning: "Metanol"
Visar resultat 6 - 10 av 28 avhandlingar innehållade ordet Metanol.
6. Selective oxidation over mixed oxide catalysts
Sammanfattning : Since the metal oxide catalysts used in many chemical processes show very high selectivity for the products aimed at, both today and in the future, they play a key role in the environmentally and economically sustainable production of chemical intermediates. Two processes of this sort have been studied in the thesis: the ammoxidation of propane and propene over a Mo-V-Nb-Te-oxide catalyst and the selective oxidation of methanol over vanadium-based catalysts. LÄS MER
7. On the Impact of Piston Motion and In-Cylinder Charge Composition on Energy Release, Auto Ignition and Emission Formation in Premixed Charge Internal Combustion Engines
Sammanfattning : The results presented in this thesis can be divided into four areas of investigation: Investigation of the effect of new volume-crank angle relations on engine emissions, power and efficiency; investigation of nitrogen oxides effect on auto ignition and knock in SI engines; investigation of premixed SI and HCCI engine operation with the alternative fuels hydrogen and reformed methanol gas (RMG); software development of a detailed chemical kinetics zonal engine model. Model development of the in-house two-zone chemical kinetic code focused on expansion of the Jacobian matrix to allow simulations of variable in-cylinder charge. LÄS MER
8. Molecular Interactions Studied by Electrophoretic and Diffusion NMR
Sammanfattning : Even though electrophoretic NMR (eNMR) experiments may provide unique chemical information and have been performed for three decades, the technique is still rarely applied, mainly because several experimental sources of artifacts have to be controlled to achieve accurate results. In this thesis, new experimental setups and protocols for accurate and precise eNMR experiments are presented. LÄS MER
9. Catalytic conversion of biomass-derived synthesis gas to liquid fuels
Sammanfattning : Climate change is one of the biggest global threats of the 21st century. Fossil fuels constitute by far the most important energy source for transportation and the different governments are starting to take action to promote the use of cleaner fuels. LÄS MER
10. Multidimensional nuclear dynamics studied by resonant X-ray scattering and pump-probe spectroscopy
Sammanfattning : This thesis is devoted to the theoretical studies of the multidimensional nuclear dynamics in molecules with the help of X-ray and pump-probe spectroscopy. Using an accurate yet computationally cheap mixed approach multimode X-ray absorption spectra (XAS) and resonant inelastic X-ray scattering (RIXS) spectra of water, methanol, and acetic acid were calculated and compared with the available experimental spectra in the gas and liquid phases. LÄS MER
