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Issue 1, 2010
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Characterization of CO2 precipitated Kraft lignin to promote its utilization

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Abstract

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 (∼3000 g mol−1).

Graphical abstract: Characterization of CO2 precipitated Kraft lignin to promote its utilization

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Publication details

The article was received on 08 Jul 2009, accepted on 25 Sep 2009 and first published on 14 Oct 2009


Article type: Communication
DOI: 10.1039/B913602A
Citation: Green Chem., 2010,12, 31-34
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    Characterization of CO2 precipitated Kraft lignin to promote its utilization

    M. Nagy, M. Kosa, H. Theliander and A. J. Ragauskas, Green Chem., 2010, 12, 31
    DOI: 10.1039/B913602A

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