Sökning: "gasification"

Visar resultat 1 - 5 av 191 avhandlingar innehållade ordet gasification.

  1. 1. 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

  2. 2. 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

  3. 3. Alkali-enhanced gasification of biomass laboratory-scale experimental studies

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Albert Bach-Oller; Luleå tekniska universitet.; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alkali; biomass; gasification; tar; soot; potassium; char; syngas; enhanced; Energiteknik; Energy Engineering;

    Sammanfattning : Gasification seeks to break carbonaceous materials into synthetic gas (CO+H2) which can be subsequently upgraded into valuable products. Thus gasification can be utilized to convert low grade biomass stocks into carbon-neutral chemicals heat and power. LÄS MER

  4. 4. Refractory corrosion in biomass gasification

    Detta är en avhandling från Umeå : Umeå Universitet

    Författare :Markus Carlborg; Umeå universitet.; [2018]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Refractory corrosion; slag; biomass; gasification; Materials Science; materialvetenskap;

    Sammanfattning : To stop the net emission of CO2 to the atmosphere, we need to reduce our dependency of fossil fuels. Although a switch to a bio-based feedstock hardly can replace the total amount of fossils used today, utilization of biomass does still have a role in a future in combination with other techniques. LÄS MER

  5. 5. Black liquor gasification experimental stability studies of smelt components and refractory lining

    Detta är en avhandling från Umeå : Energiteknik och termisk processkemi

    Författare :Mathias Råberg; Umeå universitet.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; black liquor gasification; DTA; stability; thermal analysis; thermochemical data; HTM; HT-XRD; metastable; phase diagram; refractory lining; SEM; TECHNOLOGY Chemical engineering Chemical process and manufacturing engineering Chemical energy engineering; TEKNIKVETENSKAP Kemiteknik Kemisk process- och produktionsteknik Kemisk energiteknik;

    Sammanfattning : Black liquors are presently combusted in recovery boilers where the inorganic cooking chemicals are recovered and the energy in the organic material is converted to steam and electricity. A new technology, developed by Chemrec AB, is black liquor gasification (BLG). LÄS MER