Sökning: "fischer-tropsch"
Visar resultat 6 - 10 av 24 avhandlingar innehållade ordet fischer-tropsch.
6. Fischer-Tropsch synthesis from bio-syngas models over cobalt and cobalt-iron alumina supported catalysts
Sammanfattning : Fischer-Tropsch (FT) synthesis is a process in which synthesis gas (syngas), a mixture of H2 and CO, is converted into long chain hydrocarbons mainly over Co- or Fe-based catalysts. The FT synthesis requires an H2/CO molar ratio (usage ratio) of approximately 2.1 above the catalyst surface. If the inlet syngas H2/CO ratio is less than 2. LÄS MER
7. Development of Fischer-Tropsch catalysis for gasified biomass
Sammanfattning : In order to secure the energy supply to an increasing population and at the same time limit the damage to Earth, i.e. avoiding a fatal climate change as a result of anthropogenic emissions of greenhouse gases (primarily CO2), immediate action is necessary. LÄS MER
8. Water-in-diesel emulsion and microemulsion fuels: composition, structure and effect on emissions
Sammanfattning : Water-in-diesel fuels, as emulsions and microemulsions, give reduced emissions of nitrogen oxides (NOx) and particulate matter (PM) in combustion in diesel engines compared to regular diesel. These fuels can contribute to an improved local environment in densely populated areas as they can replace regular diesel in existing vehicles without any engine modification requirements. LÄS MER
9. Development of Catalytic Nanomaterials for Three Industrial Processes
Sammanfattning : Nanotechnology is a relatively new research topic that attracts increasing interest from scientists and engineers all over the world, due to its novel applications. The use of nanomaterials has extended to a broad range of applications, for example chemical synthesis, catalytic combustion and microporous media synthesis, contributing to achievement of improved or promising results. LÄS MER
10. Hydroconversion of model Fischer‑Tropsch wax over noble metal/silica-alumina catalysts
Sammanfattning : Synthetic fuels produced using the Fischer-Tropsch technology will play an important role in the future of the transportation sector. The Fischer-Tropsch synthesis (FTS) allows converting synthesis gas (CO + H2) into fuels of outstanding quality. The synthesis gas can be obtained from different carbon sources: natural gas, coal and biomass. LÄS MER