Method for controlling the process of separating mixtures...

Details Method for controlling the process of separating mixtures... Method for controlling the process of separating mixtures...

2002-09-06

2011-12-13

Mui, Christine T (Department: 1774)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Chemical process control or monitoring system

C700S260000, C700S090000, C436S174000, C073S023350, C073S023200, C073S019010

Reexamination Certificate

active

08078323

ABSTRACT:
Method for controlling the process of separating mixtures containing several substances having close boiling points and with a known concentration, in a distillation column, wherein the concentration of at least one component is measured at a midpoint of the column, and said measurement, together with other parameters, is used to control the process.

REFERENCES:
patent: 3208230 (1965-09-01), Fourroux
patent: 4784677 (1988-11-01), Al-Chalabi
patent: 5260865 (1993-11-01), Beauford et al.
patent: 5464504 (1995-11-01), Beauford
patent: 5589630 (1996-12-01), Wiegand et al.
patent: 6006546 (1999-12-01), Espie
patent: 41 27 536 (1993-02-01), None

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