Characterization of CO2 precipitated Kraft lignin to promote its utilization
Artikel i vetenskaplig tidskrift, 2010

Converting pulp mills into forest biorefineries to produce biopower and biomaterials can decrease their environmental impact and increase feasibility at the same time. One of the key challenges to reach this goal is the recovery of lignin from process streams for subsequent utilization in a variety of innovative green processes. This study examines the fundamental chemical structure of lignin recovered from Kraft pulping streams by an acid precipitation/washing methodology. Functional group analysis and molecular weight profiles were determined by NMR and SEC with promising results for future conversions; such as low hydroxyl (oxygen) contents and low molecular weights (similar to 3000 g mol(-1)).

Författare

M. Nagy

Georgia Institute of Technology

M. Kosa

Georgia Institute of Technology

Hans Theliander

Wallenberg Wood Science Center (WWSC)

Chalmers, Kemi- och bioteknik, Skogsindustriell kemiteknik

A. J. Ragauskas

Georgia Institute of Technology

Green Chemistry

1463-9262 (ISSN) 1463-9270 (eISSN)

Vol. 12 1 31-34

Ämneskategorier

Kemiska processer

DOI

10.1039/b913602a