Inferential correction of composition for a distillation analyze

Details Inferential correction of composition for a distillation analyze Inferential correction of composition for a distillation analyze

1993-12-02

1995-11-07

Manoharan, Virginia

Distillation: processes, separatory

With measuring, testing or inspecting

Of concentration

203 1, 203 2, 203DIG18, 202160, 364501, B01D 342

Patent

active

054645042

ABSTRACT:
In a distillation column, which for control purposes cannot tolerate the inherent dead time between analysis of consecutive samples in chromatograph analyzers, the chromatograph output is frequently corrected by inferring a dynamic correction based on the temperature change of a selected tray in the column. The dynamic correction applied to the distillation analyzer essentially eliminates the inherent dead time for obtaining a chromatograph analysis, and accordingly increased the rapidity of response of the column controls which rely on chromatograph analysis.

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Liptak, B. G., Process Control Handbook, pp. 843-844.

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