Shift in pulping, bleaching strategy yields better resource utilization

被引：0

作者：

Parthasarathy, V.R. ^{[1
]}

机构：

[1] Fluor Daniel Pulp and Paper, Technology, Greenville, United States

来源：

| 1997年 / Miller Freeman Publ Inc, San Mateo, CA, United States卷 / 71期

关键词：

Bleaching - Costs - Effluents - Kraft pulp - Paper and pulp mills - Polysulfides - Simulation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Results are presented of a study indicating that high-Kappa pulping, two-oxygen delignation, and elemental chlorine free (ECF) bleaching allows better raw material utilization. High-Kappa number pulping, two-stage oxygen delignification, and ECF bleaching offer a definite cost advantage over conventional pulping and ECF bleaching. An analysis was carried out assuming that high-Kappa number pulping was followed by two-stage oxygen delignification and ECF bleaching. High-Kappa number pulping, in combination with oxygen delignification, yielded the lowest operating cost for both options. High-Kappa pulping, followed by oxygen delignification and ECF bleaching offers improved market flexibility.

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