Results 21 to 30 of about 35,839 (230)

The Effect of Cellulose Nanofibres on Dewatering during Wet-Forming and the Mechanical Properties of Thermoformed Specimens Made of Thermomechanical and Kraft Pulps

Nanomaterials, 2023
Due to environmental concerns regarding single-use plastic materials, major efforts are being made to develop new material concepts based on biodegradable and renewable resources, e.g., wood pulp. In this study, we assessed two types of wood pulp fibres,
Eirik Ulsaker Jacobsen, Simen Prang Følkner, Jørgen Blindheim, Dag Molteberg, Martin Steinert, Gary Chinga-Carrasco   +5 more
doaj   +1 more source

Evaluation and Optimization of Kraft Delignification and Single Stage Hydrogen Peroxide Bleaching for Ethiopian Sugarcane Bagasse

Journal of Natural Fibers, 2022
The current study investigated the Ethiopian sugarcane bagasse during its delignification using the Kraft pulping process and bleaching by single stage hydrogen peroxide process.
Medhanit Mamaye, Zebene Kiflie, Sisay Feleke, Abubeker Yimam   +3 more
doaj   +1 more source

Enzymatic Hydrolysis of Kraft and Sulfite Pulps: What Is the Best Cellulosic Substrate for Industrial Saccharification?

Fermentation, 2023
Sulfite and kraft pulping are two principal methods of industrial delignification of wood. In recent decades, those have been considered as possibilities to pretreat recalcitrant wood lignocellulosics for the enzymatic hydrolysis of polysaccharides and ...
Aleksandr R. Shevchenko, Ksenia A. Mayorova, Dmitry G. Chukhchin, Alexey V. Malkov, Evgeniy A. Toptunov, Vadim D. Telitsin, Aleksandra M. Rozhkova, Ivan N. Zorov, Maria A. Rodicheva, Vadim A. Plakhin, Denis A. Akishin, Daria N. Poshina, Margarita V. Semenova, Andrey S. Aksenov, Arkady P. Sinitsyn   +14 more
doaj   +1 more source

Improvements in pulp properties by alkali preextraction and subsequent kraft pulping with controlling H-factor and alkali charge [PDF]

BioResources, 2012
The objective of this study was to determine the processing conditions for obtaining improved pulp properties from the kraft pulping process with an alkali pre-extraction stage.
Kyujeong Sim, Hye Jung Youn, Hwi Cho, Heenae Shin, Hak Lae Lee   +4 more
doaj  

On the recovery of hemicellulose before kraft pulping

BioResources, 2012
To assess the feasibility of implementing hemicellulose recovery stages in kraft mills, Eucalyptus globulus wood samples were subjected to aqueous treatments with hot, compressed water (autohydrolysis processing) to achieve partial dissolution of xylan.
Carlos Vila,, Javier Romero,, José Luis Francisco,, Valentín Santos,, Juan Carlos Parajó   +4 more
openaire   +2 more sources

Detailed modeling of the kraft pulping chemistry: carbohydrate reactions [PDF]

AIChE Journal, 2020
AbstractThe article introduces a detailed model for carbohydrate chemistry in kraft pulping. This article is continuation to the modeling work carried out for hot water extraction and chemical pulp bleaching. The model includes galactoglucomannan, xylan, and cellulose acid–base equilibria, in addition to peeling, stopping, and alkaline hydrolysis ...
Fearon, Olesya, Nykänen, Vesa, Kuitunen, Susanna, Ruuttunen, Kyösti, Alén, Raimo, Alopaeus, Ville, Vuorinen, Tapani   +7 more
openaire   +4 more sources

Enlarging the Product Portfolio of a Kraft Pulp Mill via Hemicellulose and Lignin Separation – Process Integration Studies in a Case Mill

Chemical Engineering Transactions, 2013
Increased energy and raw material prices along with contracting markets for kraft pulp, have highlighted the need for the pulp industry to enlarge their traditional product portfolio with new value-added products via the implementation of biorefinery ...
V. Lundberg, J. Bood, L. Nilsson, M. Mahmoudkhani, E. Axelsson, T. Berntsson   +5 more
doaj   +1 more source

Mutagenicity of Tectona grandis Wood Extracts and Their Ability to Improve Carbohydrate Yield for Kraft Cooking Eucalyptus Wood

Molecules, 2021
Considering the toxicity of the impurities of synthesized anthraquinone, this study clarified new catalytic compounds for kraft cooking with improved carbohydrate yield and delignification and less mutagenicity, which are important for ensuring the ...
Yulia Anita, Syelvia Putri Utami, Hiroshi Ohi, Evelyn Evelyn, Akiko Nakagawa-Izumi   +4 more
doaj   +1 more source

Effects of a poly(hydroxyalkanoate) elastomer and kraft pulp fibres on biocomposite properties and three-dimensional (3D) printability of filaments for fused deposition modelling

Journal of Bioresources and Bioproducts, 2022
Three-dimensional (3D) printing is a useful technique that allows the creation of objects with complex structures by deposition of successive layers of material. These materials are often from fossil origin.
Sandra Rodríguez-Fabià, Gary Chinga-Carrasco   +1 more
doaj   +1 more source

Investigation the properties of radiata pine (pinus radiata) wood kraft pulp and paper [PDF]

تحقیقات علوم چوب و کاغذ ایران, 2014
In this study, pulp and handsheets characteristics of radiata pine wood kraft pulp was evaluated. The ratiata pine wood was collected from Chamestan Noor Research Station.
Abas Fakhryan
doaj   +1 more source