Abstract
Presteaming is a well-established technique in pulp mills, which improves cooking liquor impregnation by removing air from within and between chips. The aim of the study was to investigate how conditions during steaming affect the subsequent kraft cook and properties of the obtained pulp. It was found that higher pressure and temperature during chip presteaming led to increased degradation and dissolution of hemicelluloses. Lower refinability and tensile index was obtained for pulps cooked after presteaming at high pressure and for a long time.
Acknowledgments
The companies part of the Innventia Program Area Liner and Kraft Paper are acknowledged for their financial support.
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©2016 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Original Articles
- Synthesis and enzymatic hydrolysis of a diaryl benzyl ester model of a lignin-carbohydrate complex (LCC)
- Influence of chip presteaming conditions on kraft pulp composition and properties
- Isolating nanocellulose fibrills from bamboo parenchymal cells with high intensity ultrasonication
- Chemical improvement of surfaces. Part 4: Significantly enhanced hydrophobicity of wood by covalent modification with p-silyl-functionalized benzoates
- N-Bromosuccinimide (NBS) – an efficient catalyst for acetylation of wood
- Silane nanofilm formation by sol-gel processes for promoting adhesion of waterborne and solvent-borne coatings to wood surface
- Mechanical properties of wood flour/poly (lactic acid) composites coupled with waterborne silane-polyacrylate copolymer emulsion
- Analysis of the open-hole compressive strength of spruce
- Characterisation of cubic oak specimens from the Vasa ship and recent wood by means of quasi-static loading and resonance ultrasound spectroscopy (RUS)
- Strength properties and dimensional stability of particleboards with different proportions of thermally treated recycled pine particles
- Chemical characterization of cork and phloem from Douglas fir outer bark
- Wood microfibril angle variation after drying
Artikel in diesem Heft
- Frontmatter
- Original Articles
- Synthesis and enzymatic hydrolysis of a diaryl benzyl ester model of a lignin-carbohydrate complex (LCC)
- Influence of chip presteaming conditions on kraft pulp composition and properties
- Isolating nanocellulose fibrills from bamboo parenchymal cells with high intensity ultrasonication
- Chemical improvement of surfaces. Part 4: Significantly enhanced hydrophobicity of wood by covalent modification with p-silyl-functionalized benzoates
- N-Bromosuccinimide (NBS) – an efficient catalyst for acetylation of wood
- Silane nanofilm formation by sol-gel processes for promoting adhesion of waterborne and solvent-borne coatings to wood surface
- Mechanical properties of wood flour/poly (lactic acid) composites coupled with waterborne silane-polyacrylate copolymer emulsion
- Analysis of the open-hole compressive strength of spruce
- Characterisation of cubic oak specimens from the Vasa ship and recent wood by means of quasi-static loading and resonance ultrasound spectroscopy (RUS)
- Strength properties and dimensional stability of particleboards with different proportions of thermally treated recycled pine particles
- Chemical characterization of cork and phloem from Douglas fir outer bark
- Wood microfibril angle variation after drying