Results 41 to 50 of about 495 (117)
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
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
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Impact of lignin and carbohydrate chemical structures on degradation reactions during hardwood kraft pulping processes [PDF]
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
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
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
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Application of Alkaline Ionic Liquids in the Pretreatment Process of Eucalyptus Kraft Pulping
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
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PACT? process for treatment of kraft mill effluent
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
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
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
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

