Sökning: "Fossil conversion"

Visar resultat 1 - 5 av 111 uppsatser innehållade orden Fossil conversion.

  1. 1. Thermal Conversion of Cellulose-Lignin Precursors into Carbon Fibres

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Nanoteknologi och funktionella material

    Författare :Sofia Westberg; [2023]
    Nyckelord :Carbon fiber; lignin; cellulose; continuous conversion;

    Sammanfattning : Carbon fibres are used in many applications thanks to their exceptional tensile properties in relation to their relatively low weight. These thin strands of at least 90% carbon are mixed with a matrix such as epoxy to form composites used for cars, wind turbines, prosthetics, and many other things. LÄS MER

  3. 2. Stability improvement to a ruthenium catalyst for partial oxidation of methane

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Melker Axelsson; [2023]
    Nyckelord :catalysis; reaction engineering; kinetics; partial oxidation; chemical engineering; Technology and Engineering;

    Sammanfattning : Catalytic partial oxidation of methane (CPOM) is an energy-efficient alternative to steam reforming, the currently prevailing method for energy production from natural gas. Hulteberg Chemistry & Engineering AB has developed a catalyst for the partial oxidation of methane into syngas, for use in solid oxide fuel cells. LÄS MER

  4. 3. Metals for energy storage : For hydrogen and power generation

    Master-uppsats, Linköpings universitet/Konstruktionsmaterial

    Författare :Oscar Torsteinsrud; Mattias Reijm; [2023]
    Nyckelord :Metals; Energy Storage; Round Trip Efficiency; Aluminum; Boron; Magnesium; Silicon; Zinc;

    Sammanfattning : With an increase in energy demand and a transition from conventional fossil-driven energy generation, the world is facing a major challenge. This transition implies more intermittent energy sources whose reliance varies widely with time. To deal with this challenge, energy storage is one part of the solution. LÄS MER

  5. 4. Synthesis and characterization of a greener poly(vinyl acetate) adhesive

    Master-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Xiuting Zhang; [2023]
    Nyckelord :poly vinyl acetate -grafted-chitosan; chitosan; poly vinyl acetate ; ceric ammonium nitrate; green adhesive; poly vinyl acetat -ympad kitosan; poly vinyl acetat ; ceriumammoniumnitrat CAN ; grönt lim;

    Sammanfattning : To produce a greener adhesive is always an issue of concern to the commercial market and global environment. The environmental request for producing greener and bio-based adhesives leads to an increased awareness of replacing fossil-based components in adhesives with bio-based alternatives. LÄS MER

  7. 5. Reducing cost and CO2 emissions in the gasoline to electric vehicle fleet transition

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Emil Grund Stålvinge; [2023]
    Nyckelord :electric car; electric conversion; bldc; li-ion; lion; lipo; li-po; volvo; elbil; elbilar; elkonvertering; bldc; li-ion; lion; lipo; li-po; volvo;

    Sammanfattning : If you buy a new electric car today it will take on average about ten years for you to start saving money compared to just continue driving your old gasoline car. It will also take about 4 years until you start saving carbon dioxide emissions, both of this is because of new production costs and emissions. LÄS MER