Sökning: "bleachability"

Visar resultat 11 - 13 av 13 avhandlingar innehållade ordet bleachability.

1. 11. Some aspects on the effects of dissolved wood components in kraft pulping

   Författare :Ragnar Sjödahl; Mikael E. Lindström; Hasan Jameel; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Delignification; Dissolved wood components; Black liquor; Defibration point; Cellulose and paper engineering; Cellulosa- och pappersteknik;

   Sammanfattning : During kraft cooking a significant part of the wood material, especially lignin and hemicelluloses, is degraded and dissolved in the cooking liquor, rendering a broad range of degradation products with different molecular mass and functional groups. The main part of this thesis has been devoted to clarify the role of these dissolved wood components (DWC) during kraft cooking. LÄS MER

3. 12. Xylan Reactions in Kraft Cooking : Process and Product Considerations

   Författare :Sverker Danielsson; Mikael Lindström; Richard Gustafson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Xylan; Kraft cooking; Paper strength; Sheet density; Methylglucuronic acid; Hexenuronic acid; Cellulose and paper engineering; Cellulosa- och pappersteknik;

   Sammanfattning : Xylan is the main hemicellulose in birch, eucalyptus, and most other hardwood species. During kraft pulping a series of chemical reactions and physical processes involving xylan takes place. LÄS MER

4. 13. Xylan reactions in kraft cooking and their influence on paper sheet properties

   Författare :Sverker Danielsson; Mikael E. Lindström; Stefan Backa; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cellulose and paper engineering; Cellulosa- och pappersteknik;

   Sammanfattning : Xylan is the main hemicellulose in birch, eucalyptus, and most other hardwood species. During kraft pulping a series of chemical reactions and physical processes involving xylan take place. LÄS MER