Search for dissertations about: "ligning"

Found 3 swedish dissertations containing the word ligning.

2. 1. Multivariate Analysis of 2D-NMR Spectroscopy : Applications in wood science and metabolomics

   Author : Tommy Öman; Mattias Hedenström; Bjart Frode Lutnaes; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; 2D NMR; HSQC; cellulose; ligning; STOCSY; HSQC-STOCSY; crystallinity; biologisk kemi; biological chemistry;

   Abstract : Wood is our most important renewable resource. We need better quality and quantity both according to the wood itself and the processes that are using wood as a raw material. Hence, the understanding of the chemical composition of the wood is of high importance. READ MORE

4. 2. Establishment of ligning and other bio-renewable materials as fuels and material developments for better performance for fuel cell technology

   Author : Raquel Bohn Lima; Jiebing Li; Mahmut D. Mat; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : .... READ MORE

5. 3. Some factors affecting the amount of residual phase lignin during kraft pulping

   Author : Mikael E. Lindström; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Deligniflcation; Residual phase lignin; Hydrogensulfide ion; Hydroxide ion; Polysulfides; Ionic strength; Temperature; Lignin; Kraftpulping; Selectivity; viscosity; Kappa number; chemical degradation; Disproportionation; Cellulose and paper engineering; Cellulosa- och pappersteknik;

   Abstract : The amount of lignin which needs to be removed according to the slow residual delignification phase in kraft pulping, i e residual phase lignin, has been studied as a function of the process conditions. The variebles studied were the concentrations of hydroxide ions, hydrogensulfide ions, sodium ions (ionic strength) and temperature. READ MORE