Sökning: "Catalytic methanation"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Catalytic methanation.
1. Deactivation of cobalt and nickel catalysts in Fischer-Tropsch synthesis and methanation
Sammanfattning : A potential route for converting different carbon sources (coal, natural gas and biomass) into synthetic fuels is the transformation of these raw materials into synthesis gas (CO and H2), followed by a catalytic step which converts this gas into the desired fuels. The present thesis has focused on two catalytic steps: Fischer-Tropsch synthesis (FTS) and methanation. LÄS MER
2. Transient In Situ Studies on Supported Catalysts: CO2 Methanation and Methane Oxidation
Sammanfattning : This dissertation aims to increase the understanding of important steps in the catalytic CO2 hydrogenation and total methane oxidation reactions over supported noble metal catalysts. A general theme is the role of the metal oxide support for the catalytic reactions. LÄS MER
3. On the Function of Ceria Supported Rhodium Catalysts for Methanation of Carbon Dioxide
Sammanfattning : Technologies for energy harvesting of sustainable sources such as solar and wind lack an inherent energy buffer. As such, storing excess energy in chemical bonds, for example that of hydrogen (H2), is a desirable complementary concept. LÄS MER
4. Internal Tar/CH4 Reforming in Biomass Dual Fluidised Bed Gasifiers towards Fuel Synthesis
Sammanfattning : Production of high-quality syngas from biomass gasification in a dual fluidised bed gasifier (DFBG) has made a significant progress in R&D and Technology demonstration. An S&M scale bio-automotive fuel plant close to the feedstock resources is preferable as biomass feedstock is widely sparse and has relatively low density, low heating value and high moisture content. LÄS MER
5. Integration of thermochemical processes with existing waste management industries to enhance biomethane production
Sammanfattning : In most waste management industries, waste is separated into different fractions, each of which is treated with suitable processes. Established technologies such as waste combustion for combined heat and power (CHP) production and biomethane production through anaerobic digestion (AD) of biodegradable waste work fine as standalone processes. LÄS MER