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Identification of a packed absorption column
Author(s) -
Malpani S. N.,
Donnelly J. K.
Publication year - 1973
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450510413
Subject(s) - ordinary differential equation , partial differential equation , boundary value problem , identification (biology) , packed bed , absorption (acoustics) , flow (mathematics) , extension (predicate logic) , mathematics , differential equation , method of characteristics , mathematical analysis , chemistry , materials science , computer science , chromatography , geometry , botany , composite material , biology , programming language
A method is presented for the identification of parameters in the partial differential equations describing the dynamic behaviour of a certain class of two phase flow processes. This method is an extension of a procedure for the identification of single phase flow processes which were introduced in a previous paper. The method is applied to the identification of two parameters in the five simultaneous partial differential equations describing the behaviour of a packed absorption column being used to remove carbon dioxide from air with an aqueous solution of monoethanolamine. These parameters were determined from a single experimental step response. The approach employed was to reduce the partial differential equations to two coupled systems of ordinary differential equations by the method of characteristics. Once in this form the identification problem could be formulated as two coupled boundary value problems and solved with the use of quasilinearization.