✦ LIBER ✦

Modelling oxygen solubility in bleaching solutions

✍ Scribed by Desmond Tromans

Publisher: John Wiley and Sons
Year: 2001
Tongue: English
Weight: 426 KB
Volume: 79
Category: Article
ISSN: 0008-4034
DOI: 10.1002/cjce.5450790124

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✦ Synopsis

Abstract

A general thermodynamics‐related model of oxygen solubility, previously developed for water and aqueous inorganic solutions, has been applied to bleaching solutions. The model allows estimations of dissolved oxygen concentrations to be made for different combinations of temperature, oxygen partial pressure and inorganic solute concentrations likely to be encountered during oxygen bleaching of pulp. Combination of the model with oxygen diffusion kinetics allows optimum temperatures for transport‐controlled oxygen delignification rates to be estimated.

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