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  4. Comparison of different pretreatment methods for lignocellulosic materials. Part II: Influence of pretreatment on the properties of rye straw lignin
 
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Comparison of different pretreatment methods for lignocellulosic materials. Part II: Influence of pretreatment on the properties of rye straw lignin

Publikationstyp
Journal Article
Date Issued
2010-11-21
Sprache
English
Author(s)
Wörmeyer, Kai  
Ingram, Thomas  
Saake, Bodo  
Brunner, Gerd  
Smirnova, Irina  orcid-logo
Institut
Thermische Verfahrenstechnik V-8  
TORE-URI
http://hdl.handle.net/11420/12594
Journal
Bioresource technology  
Volume
102
Issue
5
Start Page
4157
End Page
4164
Citation
Bioresource Technology 102 (5): 4157-4164 (2011-03-01)
Publisher DOI
10.1016/j.biortech.2010.11.063
Scopus ID
2-s2.0-79151473367
PubMed ID
21208799
Publisher
Elsevier Science
Several processes have been suggested to convert various types of lignocellulosic biomass into lignin products and saccharides. This paper evaluates the suitability of an organosolv process, a process using soda, a hydrothermal process and a process developed in this work, called the " Aquasolve process" for inclusion into a lignocellulosic biorefinery concept. Part II of this paper investigates the influence of the different pretreatment processes on the properties of rye straw lignin and evaluates their ability to produce high recoveries of high quality lignin. Specifications for high quality lignin products are defined and the isolated lignin fractions are analysed by Klason lignin, carbohydrate and ash content, elemental analysis, thermo-gravimetric analysis, 31P NMR, and size exclusion chromatography. The organosolv process shows the largest lignin recovery, followed by the soda and Aquasolve processes. Lignin products from the soda process, the Aquasolve process and with reservation the organosolv process show interesting properties for polymer applications.
Subjects
Aquasolve
LHW
Lignin
Organosolv
Pretreatment
DDC Class
600: Technik
More Funding Information
The authors are grateful to the “ Deutsche Bundesstiftung Umwelt (DBU)” for the financial support ( AZ 13226-32 ) and Prof. Dr. Scheibner (University of Applied Sciences Lausitz, Germany) and the Institute for Polymer Composites (Hamburg University of Technology) for their support.
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