Search for dissertations about: "Kraft lignin"

Showing result 1 - 5 of 99 swedish dissertations containing the words Kraft lignin.

  1. 1. Lignin Extraction from Black Liquor - Properties of the Liquors and Sulphur Content in the Lignin

    Author : Ali Seid Moosavifar; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; heat-treatment; lignin precipitation; boiling point elevation; lignin; alkalisation; biofuel; properties; viscosity; Black liquor; combustion of lignin; lignin modification; viscosity correlations.;

    Abstract : Kraft lignin isolated by precipitation can be considered as being a valuable renewable source of energy and material. Removing lignin from black liquor is also advantageous as it decreases the load on the recovery boiler, which is usually the limiting factor in the production of kraft pulp. READ MORE

  2. 2. Towards a pure kraft lignin

    Author : Rufus Ziesig; Chalmers University of Technology; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LignoBoost; black liquor; lignin; impurities; purification; carbohydrate; inorganics; precipitation;

    Abstract : 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. READ MORE

  3. 3. Nonionic surfactants from kraft lignin

    Author : Harald Brelid; Chalmers University of Technology; []
    Keywords : modification; fractionation; depressant; epoxide; kraft lignin; nonionic surfractant; dispersant; adsorption; kaolin; talc;

    Abstract : .... READ MORE

  4. 4. Kraft lignin in phenol formaldehyde resin

    Author : Birgitta Danielson; Chalmers University of Technology; []
    Keywords : phenol formaldehyde resin; lignin phenol based adhesives; plywood manufacturing; kraft lignin; adhesives;

    Abstract : .... READ MORE

  5. 5. Extraction of Lignin from Kraft Cooking Liquor by Ultrafiltration

    Author : Ola Wallberg; Institutionen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lignin; Chemical technology and engineering; cooking liquor; kraft black liquor; Kemiteknik och kemisk teknologi; Ultrafiltration;

    Abstract : Lignin is a potential biofuel which can be extracted from kraft cooking liquor. Lignin can also prove valuable as a speciality chemical. By extracting lignin potential economical revenue can be gained by pulp mills, as well as technical benefits such as easier delignification and bleaching. READ MORE