Sökning: "hydrocarbon utilization"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden hydrocarbon utilization.

1. 1. Computational studies of nickel catalysed reactions relevant for hydrocarbon gasification

   Författare :Abas Mohsenzadeh; Högskolan i Borås; []
   Nyckelord :DFT; H2O; CO; adsorption; dissociation; formyl; hydrocarbon combustion; hydrocarbon synthesis; water gas shift; gasification; Ni 111 ; Ni 110 ; Ni 100 ; Resursåtervinning; Resource Recovery;

   Sammanfattning : Sustainable energy sources are of great importance, and will become even more important in the future. Gasification of biomass is an important process for utilization of biomass, as a renewable energy carrier, to produce fuels and chemicals. LÄS MER

3. 2. Environmental filtering of bacteria in low productivity habitats

   Författare :Inga Richert; Stefan Bertilsson; Annelie Wendeberg; Lise Øvreås; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bacteria; environmental filtering; diversity; ecosystem service; hydrocarbon utilization; Southern Ocean; sediment; Biologi med inriktning mot mikrobiologi; Biology with specialization in Microbiology;

   Sammanfattning : Microbes fulfill important ecosystem functions by contributing as drivers of global nutrient cycles. Their distribution patterns are mainly controlled by environmental heterogeneities. So far, little is known about the mode of action of particular environmental drivers on the microbiota, particularly in low productivity habitats. LÄS MER

4. 3. Utilization of Low Voltage D-T Neutron Generators in Neutron Physics Studies

   Författare :Somsorn Singkarat; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; D-T neutron generator; double-differential cross-section DDX ; n-1H scattering; directional neutron detector; time-of-flight method; natural iron; scintillation fibers; neutron energy converter;

   Sammanfattning : In a small nuclear laboratory of a developing country a low voltage D-T neutron generator can be a very useful scientific apparatus. Such machines have been used successfully for more than 40 years in teaching and scientific research. LÄS MER

5. 4. Design and analysis of solid oxide electrolysis-based systems for synthetic liquid fuels production

   Författare :Mahrokh Samavati; Andrew R. Martin; Alberto Traverso; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid oxide electrolyser; Entrained gasification; Fischer-Tropsch process; Thermodynamic analysis; Economy; Emission saving; Policy; Energy Technology; Energiteknik;

   Sammanfattning : During the past decades, considerable attention has been dedicated to renewable energy systems. This is due to the increased awareness regarding greenhouse gas emissions as well as limits of the future availability and reliability of conventional energy and power systems. LÄS MER

7. 5. RNA in model lipid membranes - interactions in bulk and at surfaces

   Författare :Agnes Michanek; Fysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ssRNA; RNA origami; dsDNA; selfassembly phospholipids; model membranes; monolayer; QCM-D; DSC; Neutron reflectometry; hydrophobic interaction; cationic surfactants; sphingosine; phase behavior;

   Sammanfattning : The work presented in the thesis “RNA in model lipid membranes- interactions in bulk and at surfaces” aims to characterize the interaction between RNA and model membranes with different properties as well as to determine if ssRNA associate with model membranes in different ways. Several techniques have been used to characterize these systems, including quartz crystal microbalance with dissipation monitoring (QCM-D), Langmuir film balance in combination with neutron reflectometry and fluorescence microscopy as well as differential scanning calorimetry (DSC) and isothermal titration calorimetry (ITC). LÄS MER