Results 41 to 50 of about 10,608,979 (207)
Development of Continuous Cooking Process for Kraft Pulping
JAPAN TAPPI JOURNAL, 2008 カミヤ社が1949年に連続蒸解技術を開発して以来，連続蒸解技術が商業的に注目され始め，1980年代に入ると，異なったニーズに応じて多くの連続蒸解システムが開発された。その後，生産規模及び環境保全への対応，蒸解収率の向上，操業の安定化，漂白効率の改善，最終製品の品質要求を満たすパルプ品質確保のために，COMPACT COOKING™の連続蒸解システムが開発された。2000年代になると，パルプ製造の原料である木材チップと重油の高騰から製造コストの低減を目的とした蒸解プロセスを含むプロセス面での改善が試みられている。本稿では，まず連続蒸解釜の変遷，そしてクラフトパルプ法の連続蒸解プロセスの進歩を振り返る。次に1ベッセル気相／液相釜の低温蒸解技術が開発された背景，及びこの技術の特徴について紹介し ...
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FAULT TOLERANT CONTROL APPLICATION FOR CONTINUOUS KRAFT PULPING PROCESS
IFAC 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
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Effect of xylanases on refining process and kraft pulp properties [PDF]
Cellulose, 2017 Results of this study demonstrate that enzymatic pretreatment of pulps enables energy savings in the refining process. Pretreatments of NBSK pulp with 3 different commercial xylanases resulted in a faster increase in the pulp freeness that reduced energy input for refining.
Kamila Przybysz Buzała +3 more
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The Canadian Journal of Chemical Engineering, EarlyView.Abstract Hybrid models (HMs) combine fundamental model (FM) equations with empirical components. These models can lead to improved predictions because they reduce process/model mismatch and can account for phenomena that are not considered in the FM equations.
Mouna Y. Harb, Kimberley B. McAuley
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Indústria de celulose pré-engenharia de um parque de madeiras [PDF]
, 2008 Mestrado em Engenharia QuímicaO objectivo do presente trabalho é realizar a pré-engenharia básica de uma nova linha de preparação de madeira de uma fábrica de pasta Kraft.
Linhares, Filipa Isabel Martins
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Contrasting sustainable biomass with depleting petroleum resources, this review charts the evolutionary timeline of lignin‐based TENGs. We systematically evaluate their fundamental mechanisms, enhancement strategies, and applications in green self‐powered electronics.
Yuxin Yang +9 more
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BioResources, 2008 This paper presents a preliminary study for the production of dissolving pulp from Trema orientalis (Nalita). Water prehydrolysis kraft and soda-ethylenediamine (EDA) pulping for the production of dissolving pulp from T.
M. A. Quaiyyum +3 more
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Characterisation of lignins isolated from bamboo organosolv and kraft black liquor
Maderas: Ciencia y Tecnología, 2023 Bamboo biomass was pulped using organosolv methods: Acetic acid and formic acid; hydrogen peroxide and formic acid; ethanol and water and kraft process with varying concentrations of the cooking chemicals.
Nusirat Aderinsola Sadiku +1 more
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Triboelectric nanogenerators for vehicle intelligent cockpits
FlexMat, EarlyView.Converting mechanical stimuli from drivers and vehicle motion into electrical signals, triboelectric nanogenerators provide promising interfaces toward passive, flexible, distributed and intelligent sensing for next‐generation automotive cockpits to support three core functional dimensions: driver state monitoring, vehicle state monitoring, and human ...
Haiqiu Tan +9 more
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Experience in Use of GREENOXTM Process in Delignificatior of Kraft Pulps
JAPAN TAPPI JOURNAL, 2001 The aim of the present study was to examine the use of GREENOXTM process in bleaching of kraft pulps.The GREENOXTM process is a method to bleach kraft pulps with molybdate-activated hydrogen peroxide. This process is a delignification method that can be installed in existing bleaching plants without no larger investments required.Circulation of the ...
Parén, A. +2 more
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