منابع مشابه
On the Recovery of Hemicellulose before Kraft Pulping
To assess the feasibility of implementing hemicellulose recovery stages in kraft mills, Eucalyptus globulus wood samples were subjected to aqueous treatments with hot, compressed water (autohydrolysis processing) to achieve partial dissolution of xylan. Autohydrolyzed solids were subjected to kraft pulping under selected conditions to yield a pulp of low kappa number, and to an optimized TCF bl...
متن کاملThe relationship of pretreatment pulping parameters with respect to selectivity: optimization of green liquor pretreatment conditions for improved kraft pulping
Green liquor ( GL ) was used as a sulfide rich liquor to impregnate Southern pine wood chips in a pretreatment step for kraft pulping. A central composite experimental design was applied to investigate relationships between pretreatment conditions, chemical absorption, pulping selectivity, and primary pulp qualities. The derived equations provided a correlation between the independent cooking v...
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A major instrumental limitation to rapid, "random-access" clinical analysis has been cross-contamination at sampling and reagent probes. Use of an immiscible, nonreactive fluid as a positive barrier between the liquid sample and reagent and the interior and exterior surfaces of their respective probes provides an inert, deformable surface that both prevents carryover and ensures accurate delive...
متن کاملA Kinetic Mathematical Model of Kraft Pulping Process for Control and Optimization Applications
Kraft wood pulping is the predominant process used in the pulp and paper industry for its versatility and insensitivity to variations of wood supply. In this work, a deterministic model has been developed for a Kraft Pulping Process of Eucalyptus by combining intrinsic kinetic equations (Lignin, Carbohydrates) and it is used to investigate the effects of process conditions on the extent of deli...
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Executive Summary The significance of information technology (IT) for modern business and, indeed, research in general cannot be questioned, as its sheer pervasiveness adequately attests. However, simplistic views of technological utopianism are now being offset by accounts of technological dystopianism. Clearly organizational management have wholeheartedly subscribed to an IT future as a stagg...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 2000
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.54.1165