Results 1 to 10 of about 1,726 (159)
Formation and Chemical Structure of Carbon-13 Tracer Lignin-Carbohydrate Complexes (LCCs) During Kraft Pulping [PDF]
MoleculesIn this study, a modified synthetic method for labeling a lignin dimer (guaiacylglycerol-β-guaiacyl ether-[α-13C]) was developed. The chemical structure of the target compound was analyzed using 1H-NMR, 13C-NMR, and other analytical techniques. Then, the
Zhi Wang, Yimin Xie, Boxuan Zhao
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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, +4 more
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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 ...
Olesya Fearon +2 more
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Comparison of Soda, Kraft, and DES Pulp Properties of European Black Poplar
Drvna Industrija, 2022 Kraft pulping as the dominant pulping method contributes to several environmental problems. To overcome these problems, environmentally friendly pulping methods have been investigated. In the last years, deep eutectic solvents (DESs) have been identified
Sezgin Koray Gülsoy +2 more
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Advances in Forestry Science, 2019 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 ...
Bonfatti Júnior, Eraldo Antonio +7 more
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Torrefaction of kraft pulp mills sludges
Scientific Reports, 2023 AbstractTorrefaction emerges as an industrial process that increases the energy content of conventional biomass. Primary and secondary sludge are the main solid residues generated in the Effluent Treatment Plants of bleached kraft pulp mills, and can be considered as biomass. Typically, these wastes are sent to industrial landfills.
Carlos Moreira Miquelino Eleto Torres +4 more
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BioResources, 2022 Hemicelluloses consume alkali during kraft pulping and dissolve in the black liquor as a low energy fuel. Acidic pre-hydrolysis of softwood chips removes hemicelluloses but preserves cellulose content prior to pulping.
Jingqian Chen +4 more
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Estimation of energy efficiency of kraft pulp production with the exergy increment method
Известия высших учебных заведений: Проблемы энергетики, 2020 This article contains results of exergic analysis of kraft pulping flow chart. The results of exergic balances of main kraft pulping processes such as alkali recovery at recovery boilers, black liquor evaporation, chips cooking, lime decarbonation are ...
Р. V. Lukanin
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Investigation lignin dissolution at pulping process of wheat straw [PDF]
تحقیقات علوم چوب و کاغذ ایران, 2010 The lignin dissolution in Kraft pulping for wheat straw was studied. Kraft pulping was carried out under the conditions: chemical charge of 18% (as NaOH, based on o.d. bagasse), sulfidity of 25% and liquor to wheat straw ratio of 10:1.
Jalil Roshanasan +3 more
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BioResources, 2014 In this work, kraft pulping was carried out on moso bamboo residues as a pretreatment and its impact on the chemical compositions and the digestibility of the sample was investigated.
Caoxing Huang +6 more
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