Essays about: "xylan"

Showing result 11 - 15 of 19 essays containing the word xylan.

1. 11. The Influence of Xylan on Precipitation and Filtration Properties of Lignin : A Study in the Context of the LignoBoost Process

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Helen Schneider; Lynn Schneider; [2016]
   Keywords : Xylan; Lignin; Precipitation; FBRM; LignoBoost process;

   Abstract : The LignoBoost process is a valuable supplement to the Kraft process. It can increase the pulp production rate of a Kraft mill and it enables lignin separation from black liquor with a high degree of purity. However, residual xylan in black liquor has been observed to increase filtration resistance of lignin during the LignoBoost process. READ MORE

3. 12. Development of characterization methods for lignocellulosic biogas substrates

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Mirjam Victorin; [2016]
   Keywords : characterization methods; anaerobic digestion; straw; Biogas; lignocellulose; BMP; mechanical pretreatment; chemical engineering; kemiteknik; Technology and Engineering;

   Abstract : As the need of environmentally friendly alternatives to fossil fuels is growing bigger, so is the need for knowledge and research around possible new raw materials that could serve that pur-pose. One discussed product is biogas. READ MORE

4. 13. Pyrolysis and thermogravimetric analysis of wood and its components

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Magaia Pascoa Dos Santos; [2014]
   Keywords : Biomass; wood; cellulose; lignin; thermogravimetric analysis;

   Abstract : The present study investigates the thermochemical conversion of spruce wood and its extracted components by thermogravimetric analysis. The extracted components are two pulps, three xylan-lignin samples and one lignin sample; they were produced by the kraft cooking method with different cooking times. READ MORE

5. 14. The Effect of Different Xylan Contents on the Strength Properties of Softwood Kraft pulp

   University essay from Karlstads universitet/Fakulteten för teknik- och naturvetenskap

   Author : Maria Svedinger Andersson; [2013]
   Keywords : Xylan; Glucomannan; strength; pulp; cooking; xylan content; hemucellulose; mild cook;

   Abstract : The aim of this Master thesis was to investigate if the xylan content had any influence on the physical properties of softwood kraft pulps. To achieve pulps with different xylan content different kraft cooking conditions were used; two different temperatures and two different effective alkali levels. READ MORE

6. 15. Xylan as Strength Enhancing Additive

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Zaheer Ahmad Mansoor; [2012]
   Keywords : Xylan; Kraft cooking; Tensile strength; Spruce wood; Agricultural waste;

   Abstract : The effect of xylan from different plant species on tensile properties of spruce pulp was studied. Xylans from spruce, birch, wheat straw and rice husks were mixed with the fresh white liquor and added at the later stages of separate kraft cooks, in exchange of the black liquor removed from the system at that time. READ MORE