A comprehensive mechanistic model of a continuous Kamyr digester

A novel dynamic model describing the transfer of mass, momentum, and energy has been developed for a continuous Kamyr digester. The model has been developed to improve the understanding of the process, in particular the complex interactions between the vertical motion of the mass and the chemical re...

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Bibliographic Details
Published inApplied mathematical modelling Vol. 20; no. 7; pp. 523 - 533
Main Authors Michelsen, Finn A., Foss, Bjarne A.
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Inc 01.07.1996
Elsevier Science
Subjects
Applied sciences
Computer science; control theory; systems
continuous digester
Control theory. Systems
Exact sciences and technology
first principles modelling
Modelling and identification
pulping
simulation
two-phase flow
simulation
pulping
continuous digester
first principles modelling
two-phase flow
Numerical simulation
Two phase flow
Chemical reaction
Dynamic model
Mass transfer
Digester
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Summary:A novel dynamic model describing the transfer of mass, momentum, and energy has been developed for a continuous Kamyr digester. The model has been developed to improve the understanding of the process, in particular the complex interactions between the vertical motion of the mass and the chemical reactions. An interesting property of the model is its potential ability to predict pulp quality based on the manipulated variables that are used in real plant operation. Hence, it might be used for predictive simulation to aid process operators. The model has been verified by simulating operating conditions of an industrial Kamyr digester.
ISSN:0307-904X
DOI:10.1016/0307-904X(95)00171-F