Search for dissertations about: "Joanna Wojtasz-Mucha"

Found 2 swedish dissertations containing the words Joanna Wojtasz-Mucha.

  2. 1. Mild Steam Explosion of Wood and Forest Residues in the Perspective of a Materials Biorefinery

    Author : Joanna Wojtasz-Mucha; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steam explosion; Forest residues; Pre-treatment; Soda cooking; Kraft cooking; Autohydrolysis; Biorefinery; Local properties; Hot water extraction;

    Abstract : The main objective of this work was to explore the prospects of using mild steam explosion as a pretreatment step in a forest based material biorefinery. During the steam explosion saturated steam is applied to the biomass at elevated pressure leading to an autohydrolysis of the lignocellulosic tissue, which is followed by a rapid pressure discharge, disintegrating and opening up the structure. READ MORE

  4. 2. Pre-Extraction of Wood Components Mild hydrothermal methods for a future materials biorefinery

    Author : Joanna Wojtasz-Mucha; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spruce; forest residues; pre-treatment; Biorefinery; soda cooking; hot water extraction; steam explosion; autohydrolysis; birch; kraft cooking;

    Abstract : Today there is an increasing urgency in discovering new, and more sustainable, replacements for fossil-based materials and chemicals. The biorefinery concept is promising in this context in that it relies on transforming biomass into a spectrum of commercial products. Wood is the primary bioresource in Scandinavia. READ MORE