Oscillating behavior on distillation trays | Zendy

Biddulph Michael W. | Zendy; Stephens David J. | Zendy

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Oscillating behavior on distillation trays

Author(s) -

Biddulph Michael W.,

Stephens David J.

Publication year - 1974

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.690200107

Subject(s) - entrainment (biomusicology) , baffle , distillation , mechanics , work (physics) , tray , chemistry , atmospheric pressure , chromatography , control theory (sociology) , thermodynamics , meteorology , mechanical engineering , engineering , physics , computer science , acoustics , control (management) , artificial intelligence , rhythm

The objective of this work was to study the undesirable oscillating behavior which can develop on distillation trays. This takes the form of violent lateral movements of the gas/liquid mixture, causing premature flooding and reduced efficiency. It has been demonstrated that entrainment is significantly increased by the presence of oscillations. A simple predictive method by which a designer may evaluate the likelihood of oscillations occurring is proposed. It is concluded that columns of greater than about 1.0 m diam. operating at atmospheric pressure or above are unlikely to oscillate. However, reduced pressure columns of greater diameter may oscillate. A very simple mesh baffle system which completely prevents oscillations developing is described.

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