Results 191 to 200 of about 17,378 (210)

Delignification of softwood by ozonation

Pure and Applied Chemistry, 2009
Ozonation of aspen sawdust of various moisture content (MC) values was investigated. Ozone consumption corresponding to the completion of the ozonation process was shown to be governed by the wood MC. Cellulose-containing material of a low (1–3 %) residual lignin content (LC) was produced under ozonation. It is proposed that ozone dissolved in water is
Nadezhda A. Mamleeva, Stanislav A. Autlov, Natal’ya G. Bazarnova, Valery V. Lunin   +3 more
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Oxidative Delignification of Flax Fiber

Russian Journal of Applied Chemistry, 2003
Oxidative delignification of flax fiber at 98°C was studied. The intermediate material was produced in moderate yield with high degree of delignification. The optimum conditions of the process were determined.
S. N. Petrova, I. Yu. Volkova, A. G. Zakharov   +2 more
openaire   +1 more source

Modelling of biomass fractionation by prehydrolysis-delignification

Chemical Engineering Science, 1988
Abstract A two-stage process is investigated as a potential fractionation method for barley straw biomass. Modeling of dilute-acid prehydrolysis shows that hemicellulose saccharification rate is controlled by chemical reaction; in the case of delignification of the prehydrolyzed residue by high-consistency clorination, the rate-controlling step is ...
Gy. Marton, M. Kovacs, V. Oreopoulou, E.G. Koukios   +3 more
openaire   +1 more source

Rapid Delignification of Lignocellulosic Residues

2015
With the investigations presented here, the effectiveness of a microwave-assisted organosolv pretreatment could be shown.These focused on the pretreatment of wheat and rice straw as relevant substrates for a subsequent enzymatic reaction.The addition of delignifying additives proved to be particularly effective to reduce the lignin content.Enzymatic ...
Weissbach, G., Nelles, M.
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ACID CATALYZED ORGANOSOLV DELIGNIFICATION SYSTEMS

2009
Geleneksel tam kimyasal kağıt üretim proseslerinde, çevre ve insanlar üzerine zararlı etkisi bulunan kükürtlü kimyasallar kullanmakta ve bu prosesler çok yüksek yatırım ve işletme maliyeti gerektirmektedir. Organik çözeltilerin tek başlarına veya diğer solventlerle karışım halinde ve asitlerin katalizatör olarak eklendiği alternatif kağıt üretim ...
openaire   +2 more sources

delignification, n.

2023
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Electrochemical Mediator-Based Delignification

Journal of The Electrochemical Society, 2003
M. Mickel, H.-C. Kim, S. Noll, N. Hampp
openaire   +1 more source

Chemistry of delignification

Wood Science and Technology, 1985
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Chemistry of delignification

Wood Science and Technology, 1986
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Molecular theory of delignification

Macromolecules, 1981
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