Compression refining: the future of refining? Application to bleached kraft eucalyptus pulp
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Bruno Carré
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Thierry Delagoutte
Abstract
A new compression refining technology has been tested in various conditions with a model Eucalyptus bleached kraft pulp. Its performances were also compared with those obtained with traditional LC refining of the same pulp. Compression refining of the Eucalyptus pulp led to a much better °SR/strength compromise than conventional LC refining. High strength properties can also be achieved by compression refining, in a similar range, or depending on the conditions, even better than LC refining. The higher the strength requested, the largest the advantages of this technology: for a given resistance, up to 40°SR difference with LC refined pulp can be obtained. The lower °SR is due to less cellulosic fines release which also results in papers combining a high strength and a high permeability which cannot be obtained with traditional LC refining. Indeed, with LC refining, a high strength is generally associated to a low permeability. The upscaling of this technology seems possible since large production devices are already on the market for other applications than paper/pulp. With this new pulp behaviour, papermakers will have to learn to think differently as paper strength and °SR can now be decorrelated.
Funding source: This work was supported by CTP and participants to the AlterRaf project (Ahlström Munksjö, Billerud Korsnas, Essity, Georgia Pacific, Mercer), they are all acknowledged
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Research ethics: Not applicable.
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Informed consent Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Competing interests: The authors state no conflict of interest.
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Research funding: This work was supported by CTP and participants to the AlterRaf project (Ahlström Munksjö, Billerud Korsnas, Essity, Georgia Pacific, Mercer), they are all acknowledged. All the technical work has been done by experienced CTP technicians, Marie Christine Angelier, Pascal Deluca, Frédérique Entressangle, José Martinez, they are warmly thanked.
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Data availability: The raw data can be obtained on request from the corresponding author.
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© 2024 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Biorefining
- Fractionation methods of eucalyptus kraft lignin for application in biorefinery
- Pulp and paper industry side-stream materials as feed for the oleaginous yeast species Lipomyces starkeyi and Rhodotorula toruloides
- Chemical Pulping
- Comparing classic time series models and state-of-the-art time series neural networks for forecasting as-fired liquor properties
- Optimization of kraft pulping process for Sesbania aculeata (dhaincha) stems using RSM
- On the nature of the selectivity of oxygen delignification
- Unlocking potential: the role of chemometric modeling in pulp and paper manufacturing
- Effects of chemical environment on softwood kraft pulp: exploring beyond conventional washing methods
- Bleaching
- Variations in carbohydrates molar mass distribution during chemical degradation and consequences on fibre strength
- Mechanical Pulping
- Energy consumption in refiner mechanical pulping
- Paper Technology
- Australian wheat and hardwood fibers for advanced packaging materials
- Compression refining: the future of refining? Application to bleached kraft eucalyptus pulp
- The effect of nanocellulose to coated paper and recycled paper
- Interpreting the relationship between properties of wood and pulping & paper via machine learning algorithms combined with SHAP analysis
- Hybridization to prepare environmentally friendly, cost-effective superhydrophobic oleophobic coatings
- Paper Physics
- Characterising the mechanical behaviour of dry-formed cellulose fibre materials
- Paper Chemistry
- Study on the properties of ground film paper prepared from lactic acid-modified cellulose
- Environmental Impact
- Characterization of sludge from a cellulose pulp mill for its potential biovalorization
- The in situ green synthesis of metal organic framework (HKUST-1)/cellulose/chitosan composite aerogel (CSGA/HKUST-1) and its adsorption on tetracycline
- Evaluation of the potential use of powdered activated carbon in the treatment of effluents from bleached kraft pulp mills
- Recycling
- Waste newspaper activation by sodium phosphate for adsorption dynamics of methylene blue
Artikel in diesem Heft
- Frontmatter
- Biorefining
- Fractionation methods of eucalyptus kraft lignin for application in biorefinery
- Pulp and paper industry side-stream materials as feed for the oleaginous yeast species Lipomyces starkeyi and Rhodotorula toruloides
- Chemical Pulping
- Comparing classic time series models and state-of-the-art time series neural networks for forecasting as-fired liquor properties
- Optimization of kraft pulping process for Sesbania aculeata (dhaincha) stems using RSM
- On the nature of the selectivity of oxygen delignification
- Unlocking potential: the role of chemometric modeling in pulp and paper manufacturing
- Effects of chemical environment on softwood kraft pulp: exploring beyond conventional washing methods
- Bleaching
- Variations in carbohydrates molar mass distribution during chemical degradation and consequences on fibre strength
- Mechanical Pulping
- Energy consumption in refiner mechanical pulping
- Paper Technology
- Australian wheat and hardwood fibers for advanced packaging materials
- Compression refining: the future of refining? Application to bleached kraft eucalyptus pulp
- The effect of nanocellulose to coated paper and recycled paper
- Interpreting the relationship between properties of wood and pulping & paper via machine learning algorithms combined with SHAP analysis
- Hybridization to prepare environmentally friendly, cost-effective superhydrophobic oleophobic coatings
- Paper Physics
- Characterising the mechanical behaviour of dry-formed cellulose fibre materials
- Paper Chemistry
- Study on the properties of ground film paper prepared from lactic acid-modified cellulose
- Environmental Impact
- Characterization of sludge from a cellulose pulp mill for its potential biovalorization
- The in situ green synthesis of metal organic framework (HKUST-1)/cellulose/chitosan composite aerogel (CSGA/HKUST-1) and its adsorption on tetracycline
- Evaluation of the potential use of powdered activated carbon in the treatment of effluents from bleached kraft pulp mills
- Recycling
- Waste newspaper activation by sodium phosphate for adsorption dynamics of methylene blue
