Structural characteristics of industrial lignins in respect to their valorization

Tiina Liitiä (Corresponding author), Stella Rovio, Riku Talja, Tarja Tamminen, Jorge Rencoret, A. Gutiérrez, J.C. Del Río, Bodo Saake, K. Schwartz, Vila Babarro, Janis Gravitis, Marco Orlandi

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The effect of raw material and pretreatment procedure on the structure and properties of industrial lignins was evaluated by detailed chemical and physical characterization. The application potential of studied lignins was considered based on those. Hydrolysis lignin and steam exploded lignins had clearly distinct characteristics compared to the spent liquor lignins; higher molar mass, significantly higher amount of native aryl ether linkages and thereby low phenol content. The hydrolysis lignin also contained significant amount of carbohydrate and protein residues, which may affect the applicability. For resin applications, the kraft lignins seem most reactive in respect of high phenol content. The high molar mass of hydrolysis lignin and steam exploded lignins could be beneficial for dispersants and composites.
    Original languageEnglish
    Title of host publicationEWLP 2014
    Subtitle of host publication13th European Workshop on Lignocellulosics and Pulp Proceedings
    Pages79-82
    Publication statusPublished - 2014
    MoE publication typeNot Eligible
    Event13th European Workshop on Lignocellulosics and Pulp, EWLP 2014 - Sevilla, Spain
    Duration: 24 Jun 201427 Jun 2014
    Conference number: 13

    Conference

    Conference13th European Workshop on Lignocellulosics and Pulp, EWLP 2014
    Abbreviated titleEWLP 2014
    CountrySpain
    CitySevilla
    Period24/06/1427/06/14

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