Results 41 to 50 of about 495 (117)

Precipitation of Lignin from Softwood Black Liquor: An Investigation of the Equilibrium and Molecular Properties of Lignin

open access: yesBioResources, 2015
Extracting lignin from black liquor is an attractive option in modern pulp mills as a unit process for a combined biorefinery. The lignin obtained can be utilized as solid fuel or other high-value added products.
Weizhen Zhu, Hans Theliander
doaj   +1 more source

Process optimization in kraft pulping, bleaching, and beating of Leucaena diversifolia

open access: yesBioResources, 2011
A variety of the Leucaena genus, Leucaena diversifolia, was used for pulp and paper making by kraft and refining processes and a OD(EP)DP bleaching sequence. The same species has been suggested as an energy crop and, in fact, this species used shows a high gross heating value; besides, this variety of Leucaena has appropriate characteristics for pulp ...
Manuel Javier Feria,   +5 more
openaire   +2 more sources

Impact of lignin and carbohydrate chemical structures on degradation reactions during hardwood kraft pulping processes [PDF]

open access: yesBioResources, 2013
Most studies aimed at determining rates of hardwood delignification and carbohydrate degradation have focused on understanding the behavior of a single wood species.
Ricardo B. Santos   +3 more
doaj  

Cinética da remoção dos extrativos da madeira de Eucalyptus grandis durante polpação Kraft = Kinetics of the removal of Eucalyptus grandis wood extractives during Kraft pulping

open access: yesActa Scientiarum: Technology, 2010
O trabalho teve por objetivo estudar a cinética da remoção dos extrativos da madeira de Eucalyptus grandis durante polpação Kraft. As polpações foram efetuadas em reatores tubulares de aço, usando-se madeira na forma de serragem nas seguintes condições ...
Camila Sarto, Cláudio Angeli Sansigolo
doaj  

Enhancing dissolving pulp quality of mixed raw materials through pre-hydrolysis kraft-cooking: A study on Acacia crassicarpa and Terminalia catappa

open access: yesCommunications in Science and Technology
Acacia crassicarpa wood is widely used in Indonesia as a raw material for dissolving pulp (DP) by the kraft-cooking process. Given that Indonesia has a rich variety and abundance of cellulose-rich wood, it is deemed crucial to research alternative raw ...
Yusnimar Sahan   +7 more
doaj   +1 more source

Application of Alkaline Ionic Liquids in the Pretreatment Process of Eucalyptus Kraft Pulping

open access: yesBioResources, 2016
In order to explore the potential application of green solvent ionic liquids (ILs) in the kraft pulping process, eucalyptus wood was pretreated by [Mmim]DMP before normal pulping.
Yi Hou   +4 more
doaj   +1 more source

PACT? process for treatment of kraft mill effluent

open access: yesWater Science and Technology, 1997
The PACT TM process (powdered activated carbon addition to the activated sludge process) was evaluated for the treatment of Kraft pulp mill wastewater in a series of bench scale experiments. Possibly due to the relatively low strength wastewater, the PACT TM process with carbon doses between 0.5 and 1.0 g/L of influent only performed marginally ...
openaire   +1 more source

FAULT TOLERANT CONTROL APPLICATION FOR CONTINUOUS KRAFT PULPING PROCESS

open access: yesIFAC Proceedings Volumes, 2006
Abstract In this study, the fault tolerant Kappa number control in continuous cooking application is investigated. The Kappa number is one of the quality measures in the pulp cooking process and usually the only on-line measurement. It is a measure of the residual lignin content in the pulp.
Timo Ahvenlampi   +2 more
openaire   +1 more source

ESTUDO DA ADIÇÃO DA LIGNINA KRAFT NAS PROPRIEDADES MECÂNICAS DOS BRIQUETES DE RESÍDUOS DA INDÚSTRIA MOVELEIRA

open access: yesCiência Florestal, 2017
In order to improve global effectiveness of energy production, a strategy is the model of bio-refineries in which all the components of biomass are totally used to produce a range of products with aggregated value.
Adriana de Fátima Gomes Gouvêa   +8 more
doaj  

The Progress in Recausticizing Technology of Kraft Pulping Process

open access: yesJAPAN TAPPI JOURNAL, 2010
苛性化工程は,クラフトパルプ製造における重要なプロセスの一つであり,この技術の確立がクラフトパルプ発展の一端を担ってきた。ここでは,クラフトパルププロセスにおける苛性化工程の位置付けと,苛性化技術の変遷を整理することにより,国内における今後の動向及び課題を推測する。
openaire   +1 more source

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