Sökning: "lignin fuel"

Visar resultat 1 - 5 av 32 avhandlingar innehållade orden lignin fuel.

  1. 1. Viscosity and boiling point elevation of black liquor from the lignin extraction process and the modification of extracted lignin

    Detta är en avhandling från Chalmers University of Technology

    Författare :Ali Moosavifar; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cellulosa- och pappersteknik; Cellulose and paper engineering; Black liquor; black liquor properties; viscosity; Boiling point elevation; evaporation characteristic; alkalisation of black liquor; Lignin; Lignin precipitation; combustion of lignin; lignin modification; calcium addition to lignin; lignin fuel;

    Sammanfattning : .... LÄS MER

  2. 2. Towards a pure kraft lignin

    Detta är en avhandling från Chalmers University of Technology

    Författare :Rufus Ziesig; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lignin; LignoBoost; inorganics; precipitation; black liquor; carbohydrate; impurities; purification;

    Sammanfattning : The most widely used production method for paper pulp in the world is kraft pulping. In chemical pulping the polymer, lignin, which binds the wood fibres together, is partly depolymerized. This allows the wood fibres to be separated from each other. LÄS MER

  3. 3. Hydrothermal Liquefaction of Lignin into Bio-Oil

    Detta är en avhandling från Chalmers University of Technology

    Författare :Huyen Nguyen Lyckeskog; Chalmers tekniska högskola.; Chalmers University of Technology.; [2016]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; stability; lignin; subcritical water; hydrothermal conversion; bio-oil; aging;

    Sammanfattning : Lignin, one of the three main components of lignocellulosic biomass, is the second most abundant organic polymer found on Earth. Nowadays, most of the lignin (almost 99%) produced in the Kraft pulping process is used as internal fuel. LÄS MER

  4. 4. Precipitation of Kraft Lignin: Yield and Equilibrium

    Detta är en avhandling från Chalmers University of Technology

    Författare :Weizhen Zhu; Chalmers tekniska högskola.; Chalmers University of Technology.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LignoBoost process; lignin precipitation; black liquor; Poisson-Boltzmann cell model; molecular weight of lignin; 1H and 13C NMR spectra of lignin;

    Sammanfattning : Kraft pulping is the dominant pulping process used in the world today. The material efficiency in modern kraft pulp mills is, however, only 40−55% and the final product consists mainly of cellulose. Recently, a novel process called “LignoBoost” has been introduced to separate lignin from kraft black liquor. LÄS MER

  5. 5. Precipitation and separation of lignin from kraft black liquor

    Detta är en avhandling från Chalmers University of Technology

    Författare :Fredrik Öhman; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik; Chemical engineering; black liquor; lignin; precipitation; separation; extraction; filtration; washing; pressing;

    Sammanfattning : The separation of lignin from black liquor is an attractive option to consider for pulp mills. In modern pulp mills, lignin extraction offers the opportunity of withdrawing an energy surplus in the form of a solid biofuel. LÄS MER