Distillation: processes – separatory – With measuring – testing or inspecting
Patent
1979-03-27
1981-02-24
Bascomb, Jr., Wilbur L.
Distillation: processes, separatory
With measuring, testing or inspecting
203 2, 203 3, 203DIG9, 203DIG19, 202160, 202186, 202206, 364501, 585800, B01D 342
Patent
active
042526140
ABSTRACT:
A control system for a multiple feed fractional distillation column is disclosed in which the flow rate signals of the multiple feed streams are delayed and combined for use in feedforward predictive control of the upper reflux flow, intermediate reflux flow and/or reboiler fluid flow to the fractional distillation column. Temperature measurements of the upper vapor stream, the upper reflux stream, the intermediate vapor stream and the intermediate reflux stream as well as analysis of a product stream can be utilized to provide feedback control of the fractional distillation column.
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Bascomb, Jr. Wilbur L.
Phillips Petroleum Company
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