Temperature and Composition Control


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Temperature and Composition Control
10103021030900Temperature and Composition ControlThe function of composition control extends beyond assuring adequate product purity. The composition controller manipulates a stream such as reboil, reflux, or product. Unstable composition control will disturb this stream, and the disturbances will unsettle the column. Two primary methods are used for composition control: temperature control or analyzer control. Temperature control is cheaper, faster, and far more popular. Analyzers provide more direct and more accurate control of product composition and are favored where these qualities translate into profits. Both temperature and analyzer controls have serious limitations. Failure to recognize…
Citation
Henry Z. Kister: Distillation Operation. Temperature and Composition Control, Chapter (McGraw-Hill Professional, 1990), AccessEngineering Export