Sökning: "Kemiska Reaktioner"

Visar resultat 1 - 5 av 145 avhandlingar innehållade orden Kemiska Reaktioner.

  1. 1. Pyrolysis of biomass in fluidized-beds: in-situ formation of products and their applications for ironmaking

    Författare :Pelle Mellin; Weihong Yang; Blasiak Wlodzimierz; Gerrit Brem; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biomass; Pyrolysis; Fluidized bed; CFD; Blast furnace; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : The iron and steel industry emitted 8 % of all CO2 emissions in Sweden, 2011. Investigating alternative energy carriers is the purpose of this thesis. By pyrolyzing biomass, an energetic solid, gaseous and liquid (bio oil) fraction is obtained. LÄS MER

  3. 2. Conversion of Biomass to Renewable Liquid Feedstocks in Pyrolysis-based Applications

    Författare :Henry Persson; Weihong Yang; Louise Olsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pyrolysis; Biomass; Pre-treatment; Stepwise Pyrolysis; Catalytic Pyrolysis; Pyrolys; Biomassa; Förbehandling; Stegvis Pyrolys; Katalytisk Pyrolys; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : The production of chemicals and fuels currently rely on fossil resources which are associated with global warming as well as economic and political instabilities. The demand for renewable alternatives is increasing as legislations on greenhouse gas emissions are becoming more stringent. LÄS MER

  4. 3. Semi-deterministic numerical simulations of wear on various scales : From chemo-mechanical effects to the wear of components in orbital type hydraulic motors

    Författare :Joel Furustig; Staffan Björklund; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Sammanfattning : A costly effect, caused by the relative motion of machine components in contact, is wear. Solid surfaces come into contact when the lubricant film thickness is thin, resulting in locally high pressures and high wear rates. Components and machines will, due to this wear, eventually lose their functionality. LÄS MER

  5. 4. Studies of new ternary hydrides with different d-electron content

    Författare :Abdulkarim Kadir; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemiska Reaktioner; Kemisk Syntes;

    Sammanfattning : .... LÄS MER

  7. 5. Methodology for developing reduced reaction mechanisms, and their use in combustion simulations

    Författare :Niklas Zettervall; Förbränningsfysik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chemical kinetics; LES; reaction mechanism; kemiska reaktioner; LES; Reaktionsmekanism;

    Sammanfattning : Combustion, present in a vast majority of energy and material production as well as in transportation, represents a foundation of our modern society. To improve and optimize the applications relying on combustion demand a high level of knowledge, and an ability to simulate the combustion process. LÄS MER