Results 101 to 110 of about 8,604 (222)

Towards a pure kraft lignin [PDF]

, 2014
The most widely used production method for paper pulp in the world is kraft pulping. In chemical pulping the polymer, lignin, which binds the wood fibres together, is partly depolymerized.
Ziesig, Rufus
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Self-aggregation of kraft lignin in aqueous solutions [PDF]

, 2005
Self-aggregation of kraft lignin in aqueous solution at various conditions was studied by light scattering. The tendency for kraft lignin to self-aggregate was found to increase either when the acidity, the ionic strength or the temperature was increased.
Norgren, Magnus,
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Oxidative depolymerisation of kraft lignin

, 2023
The production of green hydrogen may be greatly aided by the use of an alternative anode reaction replacing oxygen evolution to increase energy efficiency and concomitantly generate value-added products. Lignin, a major component of plant matter, is accumulated in large amounts in the pulp and paper industry as waste.
Brix, Ann Cathrin (M. Sc.), Krysiak, Olga A. (Dr. rer. nat.), Cechanaviciute, Ieva A. (Dr.), Bjelovučić, Gal, Banko, Lars (Dr.-Ing.), Ludwig, Alfred (Prof. Dr.-Ing.), Schuhmann, Wolfgang (Prof. Dr. rer nat.)   +6 more
openaire   +1 more source

Carbon Fibres from Kraft Lignin [Elektronisk resurs] [PDF]

, 2012
Kraft lignin has a high potential for use in more valuable applications than its current use as fuel in pulp mills and integrated pulp and paper mills. The possibility of using kraft lignin, a green material with a carbon content of more than 60 %, for ...
Norberg, Ida,, Gellerstedt, Göran,, Sjöholm, Elisabeth,, Liebner, Falk,, Ek, Monica,   +4 more
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Investigating the Depolymerization Behavior of Structurally Modified Kraft Lignin in Deep Eutectic Solvents

BioResources
Deep eutectic-like solvents (DESs) are ideal green solvents for achieving depolymerization of kraft lignin under mild conditions. In this study, the impact of changes in chemical structures in hardwood kraft lignin (HKL), softwood kraft lignin (SKL ...
Wenguang Li, Shubin Wu
doaj  

Precipitation of Kraft Lignin: Yield and Equilibrium [PDF]

, 2015
Kraft pulping is the dominant pulping process used in the world today. The material efficiency in modern kraft pulp mills is, however, only 40−55% and the final product consists mainly of cellulose.
Zhu, Weizhen
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Distinctive delignification with consecutive application of Geobacillus sp. 71 xylanase and Rhodococcus jostii rha1 lignin peroxidase

Maderas: Ciencia y Tecnología, 2018
In present study, single and consecutive applications of xylanase and lignin peroxidase were performed in an XOQP TCF sequence to bleach pine and eucalypts kraft pulp. The consecutive use of Geobacillus sp. strain 71 xylanase and Rhodococcus jostii RHA1
Aysegul Ozer, Sabriye Canakci, Gozde Gocmen, Ilhan Deniz, Huseyin Kirci, Onur Tolga Okan, Ali Osman belduz   +6 more
doaj  

Caracterização de compostos reduzidos de enxofre gerados na produção de celulose kraft e pré-hidró lise kraft

Ciência Florestal, 2002
An environmental concern in the kraft pulping is the odor caused by the reduced sulphur compounds.There are many simple equipments to detect on-line the total reduced sulphur (TRS), like the coulometric titrator.
Afonso Moura Moraes de, Celso Edmundo Foelkel Bochetti, Sonia Maria Frizzo Bitencourt   +2 more
doaj  

Efeito do teor de lignina da madeira de Eucalyptus globulus Labill. no desempenho da polpação kraft

Ciência Florestal, 2011
In this research, it was analyzed the lignin content effect of Eucalyptus globulus Labill. wood in kraft pulping optimization. Seventy-two laboratory cooking were made with wood chips obtained from six Eucalyptus globulus trees selected from a group of ...
Gabriel Valim Cardoso, Celso Edmundo Bochetti Foelkel, Sonia Maria Bitencourt Frizzo, Claudia Adriana Broglio da Rosa, Teotônio Francisco de Assis, Patrícia de Oliveira   +5 more
doaj  

Enzymology of Degradation of Xenobiotic Compounds by Lignin-Degrading Fungi [PDF]

, 2005
Not ...
Shrivastava, Rohit S.
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