Monosaccharide production from lignocellulosic biomasses via concentrated acid hydrolysis

Jari Heinonen, Anu Tamminen, Jaana Uusitalo, Tuomo Sainio

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsProfessional


    Monosaccharides are valuable and versatile platform chemicals that can be obtained by hydrolyzing cellulose and hemicelluloses in lignocellulosic biomasses [1, 2, 3]. Hydrolysis with concentrated sulfuric acid as catalyst leads to 80% or higher monosaccharide yield. Only a low amount of by-products is formed [2, 3]. The hydrolysis acid must be removed prior to downstream processing of monosaccharides. Traditionally neutralization with Ca(OH)2 has been used. This results in high chemical consumption and generation of waste gypsum. In addition, fresh sulfuric acid is needed for every hydrolysis [2, 3]. In order to lower the chemical costs of the concentrated acid hydrolysis process, the hydrolysis acid should be recycled. This can be accomplished by using chromatography: the hydrolysates are fractionated into sulfuric acid fraction, monosaccharide fraction, and by-product fractions [2]. In this work, batchwise chromatographic fractionation of wood based concentrated acid lignocellulosic hydrolysates was studied. Effectiveness of the chromatographic purification was evaluated by investigating ethanol production from the purified monosaccharide solutions using S. cerevisiae.
    Original languageEnglish
    Title of host publicationNWBC 2012
    Subtitle of host publicationThe 4th Nordic Wood Biorefinery Conference
    EditorsKlaus Niemelä
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    ISBN (Electronic)978-951-38-7881-8
    ISBN (Print)978-951-38-7880-1
    Publication statusPublished - 2012
    MoE publication typeD3 Professional conference proceedings
    Event4th Nordic Wood Biorefinery Conference, NWBC 2012 - Helsinki, Finland
    Duration: 23 Oct 201225 Oct 2012 (Full proceedings)

    Publication series

    SeriesVTT Technology


    Conference4th Nordic Wood Biorefinery Conference, NWBC 2012
    Abbreviated titleNWBC 2012
    Internet address


    Dive into the research topics of 'Monosaccharide production from lignocellulosic biomasses via concentrated acid hydrolysis'. Together they form a unique fingerprint.

    Cite this