Sökning: "biomass gasification"

Visar resultat 1 - 5 av 136 avhandlingar innehållade orden biomass gasification.

  1. 1. Biomass gasification in ABFB Tar mitigation

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Nemanova Vera; KTH.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ash; biomass; char; gasification; iron-based; petcoke; tar; Chemical Engineering; Kemiteknik;

    Sammanfattning : Biomass gasification may be an attractive alternative for meeting future energy demand. Although gasification is a mature technology, it has yet to be fully commercialised due to tar formation. This study focuses on the tar mitigation in gas produced in an atmospheric bubbling fluidised bed (ABFB) gasification system. LÄS MER

  2. 2. From torrefaction to gasification Pilot scale studies for upgrading of biomass

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Martin Strandberg; Umeå universitet.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Torrefaction; biomass; pilot scale; continuous reactor; grindability; entrained flow gasification; degree of torrefaction; biomass powder;

    Sammanfattning : Increasing the share of biomass, preferably by replacing fossil fuels, is one way to mitigate the present climate change. Fossil coal can be directly replaced by co-combustion of coal and biomass and fossil engine fuels (gasoline and diesel) could potentially partly be replaced by synthetic renewable fuels produced via entrained flow gasification of biomass. LÄS MER

  3. 3. Entrained-Flow Gasification of Black Liquor and Pyrolysis Oil Experimental and Equilibrium Modelling Studies of Catalytic Co-gasification

    Detta är en avhandling från Luleå : Luleå University of Technology

    Författare :Yawer Jafri; Luleå tekniska universitet.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Black liquor; pyrolysis oil; catalytic gasification; co-gasification; gasification; entrained-flow gasification; pilot-scale; Energy Engineering; Energiteknik;

    Sammanfattning : The last couple of decades have seen entrained-flow gasification of black liquor (BL) undergo an incremental process of technical development as an alternative to combustion in a recovery boiler. The ability of the technology to combine chemical recovery with the production of clean syngas renders it a promising candidate for the transformation of chemical pulp mills into integrated forest biorefineries. LÄS MER

  4. 4. Thermochemical and Catalytic Upgrading in a Fuel Context Peat, Biomass and Alkenes

    Detta är en avhandling från Stockholm : Kemiteknik

    Författare :Christina Hörnell; KTH.; [2001]
    Nyckelord :peat; biomass; liquefaction; tetralin; gasification; pyrolysis; tar-cracking; dolomite; silica; heterogeneous oligomerization; alkenes;

    Sammanfattning : .... LÄS MER

  5. 5. Numerical Simulation of Combustion and Gasification of Biomass Particles

    Detta är en avhandling från Stockholm : Kemiteknik

    Författare :Fatehi Hesameddin; Lunds universitet.; Lund University.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thermochemical Conversion; Pyrolysis; Gasification; Combustion; Biomass;

    Sammanfattning : Popular Abstract in English Most of us are familiar with using plant-derived material such as wood for producing heat for warming the cottages or cooking food when we are camping. Apart from that, plant-derived materials such as trees, forest residues, grasses, agricultural crops, agricultural residues and straw have great potential in producing energy in a larger scale. LÄS MER