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Computer control of holdup in a reciprocating plate extraction column
Author(s) -
Taylor P. A.,
Baird M. H. I.,
Kusuma I.
Publication year - 1982
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.5450600419
Subject(s) - feed forward , control theory (sociology) , reciprocating motion , pid controller , controller (irrigation) , tracking (education) , process (computing) , column (typography) , phase (matter) , engineering , computer science , control engineering , control (management) , chemistry , temperature control , mechanical engineering , psychology , agronomy , pedagogy , organic chemistry , connection (principal bundle) , biology , operating system , artificial intelligence , gas compressor
This paper describes the application of computer control to a pilot scale (15 cm diameter) Reciprocating Plate Solvent Extraction Column. The system under investigation was kerosene dispersed in water without mass transfer between the phases. The control objective was the regulation and set point tracking of the holdup of the dispersed phase. Dynamic tests showed that the column was a non‐minimum phase, dead‐time process with asymmetric, non‐linear gains and time constants. Fixed parameter controllers of increasing complexity; PID, Dahlin algorithm, and minimum variance, were compared to an adaptive controller, the self tuning regulator. These controllers were applied in feedback and combined feedback‐feedforward configurations.