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Relevant bibliographies by topics / Kraft Process

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Journal articles

Academic literature on the topic 'Kraft Process'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 June 2025

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Journal articles on the topic "Kraft Process"

1

Yoshiuchi, Keigo. "New Agents for Kraft Process." JAPAN TAPPI JOURNAL 57, no. 9 (2003): 1321–27. http://dx.doi.org/10.2524/jtappij.57.1321.

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2

Geffert, Anton, Jarmila Geffertova, and Blazej Seman. "The Problems in Delignification of Dry Wood by Kraft Process." Key Engineering Materials 688 (April 2016): 3–9. http://dx.doi.org/10.4028/www.scientific.net/kem.688.3.

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The objective of this study was to assess the causes of the problems arising in the CBC kraft cooking of several types of hardwood chips particularly in view of high dry matter but also in view of chip thickness and character of wood.High dry matter of processed chips influences negatively delignification. Similar effect on delignification is achieved by wood character (anatomic and morphological properties of cell elements, chemical composition, portion of heart and sapwood).Chips thickness has the most significant impact on delignification process comparing to other monitored characteristics. The increase of chips thickness by 1-2 mm has significant negative impact on monitored characteristics of kraft cooking – yield, Kappa number and amount of rejects.Displacement CBC kraft procedure is more sensitive on the deviation from standard conditions than conventional kraft cooking.The problems occurring during kraft cooking of different wood chips mixtures with high dry matter by CBC procedure are possible to resolve by technological and organizational precautions – separate chipping and storage of chips of heart and non-heart woods, preparation of thinner chips of heart wood, chips pre-vaporing before kraft cooking.

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3

Yang, Ling, and Shijie Liu. "Kinetic Model for Kraft Pulping Process." Industrial & Engineering Chemistry Research 44, no. 18 (2005): 7078–85. http://dx.doi.org/10.1021/ie050301n.

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4

Ong, Benjamin H. Y., Timothy G. Walmsley, Martin J. Atkins, and Michael R. W. Walmsley. "A Kraft Mill-Integrated Hydrothermal Liquefaction Process for Liquid Fuel Co-Production." Processes 8, no. 10 (2020): 1216. http://dx.doi.org/10.3390/pr8101216.

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There is a growing awareness of the need to mitigate greenhouse gas emissions and the inevitable depletion of fossil fuel. With the market pull for the growth in sustainable and renewable alternative energy, the challenge is to develop cost-effective, large-scale renewable energy alternatives for all energy sectors, of which transport fuels are one significant area. This work presents a summary of novel methods for integrating kraft mills with a hydrothermal liquefaction process. The application of these methods has resulted in a proposed kraft mill-integrated design that produces a liquid fuel and could provide net mitigation of 64.6 kg CO2-e/GJ, compared to conventional petrol and diesel fuels, at a minimum fuel selling price of 1.12–1.38 NZD/LGE of fuel, based on the case study. This paper concludes that a hydrothermal liquefaction process with product upgrading has promising economic potential and environmental benefits that are significantly amplified by integrating with an existing kraft mill. At the current global kraft pulp production rate, if each kraft mill transforms into a biorefinery based on hydrothermal liquefaction, the biofuel production is an estimated 290 Mt (9.9 EJ).

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5

Dean, S. W., Catherine M. Dickerson, and Jonathan Rubin. "Bioproducts Process Pathways for Kraft Paper Mills." Journal of ASTM International 7, no. 3 (2010): 102571. http://dx.doi.org/10.1520/jai102571.

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6

Bonfatti Júnior, Eraldo Antonio, Elaine Cristina Lengowski, Alan Sulato de Andrade, et al. "Bamboo kraft pulping." Advances in Forestry Science 6, no. 4 (2019): 791. http://dx.doi.org/10.34062/afs.v6i4.8361.

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Despite of the wide use worldwide, the industrial potential of bamboo species in Brazil is not much investigated. However, some encouragement to revert this situation was created in last few years. The aim of this research was to evaluate the technological characteristics of the Bambusa vulgaris biomass for the production of pulp by the kraft process. The technological characteristics of the raw material were determined by the basic density, the chemical composition and the morphology of the fibers. The cooking process was carried out with the application of eight charges of active alkali, in 90 minutes of heating time and 60 minutes in the maximum temperature of 170ºC. All analyzes were also executed with the Eucalyptus spp. and the Pinus spp., in order to make a complete comparison among the species Bambusa vulgaris and the two most used raw materials for the pulp production in Brazil. The Bambusa vulgaris presented a higher basic density, lower holocellulose content and a higher total extractive content. Its fibers have intermediate length and wall thickness, similar to the Eucalyptus spp. and the Pinus spp. Considering the kraft pulping process, the species Bambusa vulgaris demonstrated to be easier to delignify besides presenting almost zero reject content and smaller consumption of active alkali. However, the Eucalyptus spp. and the Pinus spp. obtained the best yields, the lowest specific consumption of raw material and better selectivities.

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7

HART, PETER W. "Production of high yield bleached hardwood kraft pulp: Breaking the kraft pulp yield barrier." September 2011 10, no. 9 (2011): 37–41. http://dx.doi.org/10.32964/tj10.9.37.

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A modified kraft pulping process has been developed that successfully breaks the traditional hardwood kraft pulp yield barrier. The process produces fully bleached, high brightness hardwood kraft pulp with a yield of greater than 53% on wood. Details of the development and processing steps, along with various recovery cycle impacts, are discussed.

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8

Lahtinen, Maarit H., Joona Mikkilä, Kirsi S. Mikkonen, and Ilkka Kilpeläinen. "Kraft Process—Formation of Secoisolariciresinol Structures and Incorporation of Fatty Acids in Kraft Lignin." Journal of Agricultural and Food Chemistry 69, no. 21 (2021): 5955–65. http://dx.doi.org/10.1021/acs.jafc.1c00705.

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9

Lievonen, Miikka, Juan José Valle-Delgado, Maija-Liisa Mattinen, et al. "A simple process for lignin nanoparticle preparation." Green Chemistry 18, no. 5 (2016): 1416–22. http://dx.doi.org/10.1039/c5gc01436k.

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10

Pilarska, Agnieszka A., Agnieszka Wolna-Maruwka, Alicja Niewiadomska, Krzysztof Pilarski, and Artur Olesienkiewicz. "A Comparison of the Influence of Kraft Lignin and the Kraft Lignin/Silica System as Cell Carriers on the Stability and Efficiency of the Anaerobic Digestion Process." Energies 13, no. 21 (2020): 5803. http://dx.doi.org/10.3390/en13215803.

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This study compares the effects of pure kraft lignin and the kraft lignin/silica system (1:4 by weight). The comparative analysis of the physicochemical properties of both carriers showed that the kraft lignin/silica system was characterised by better properties. The experiment conducted in the study involved continuous anaerobic digestion under mesophilic conditions. Three samples were degraded in the following order: (i) sewage sludge (SS), (ii) SS with the addition of kraft lignin, and (iii) SS with the addition of the kraft lignin/silica system. A quantitative analysis of the digestate samples was carried out by means of in situ fluorescence. It showed more intense proliferation of microorganisms in the SS + kraft lignin/silica variant than in the sample with pure kraft lignin. The highest amount of biogas was obtained in the SS + kraft lignin/silica variant (689 m3 Mg−1 VS, including 413 m3 Mg−1 VS of methane; VS—volatile solids). There were comparable amounts of biogas in the SS variant (526 m3 Mg−1 VS of biogas, including 51% of methane) and the SS + kraft lignin variant (586 m3 Mg−1 VS of biogas, including 54% of methane). The research clearly showed that the material with a high share of silica was an effective cell carrier.

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