B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
202/55
B01D 3/42 (2006.01)
Patent
CA 1213242
ABSTRACT OF THE DISCLOSURE: A process for controlling a distillation column in which feedstock is distilled for separation into a pro- duct from the top of the column having a first predetermined content of an intended component with a high boiling point and a product from the bottom of the column having a second predetermined content of an intended component with a low boiling point by controlling the flow rate of either one of the products and a part of the product from the top of the column is refluxed to the column. The process comprises the steps of : computing a desired value of the flow rate of the product from the bottom of the column in accordance with a material balance; controlling the flow rate of said product from the bottom of the column in accordance with a first corrected desired value which is obtained by correcting the desired value of the flow rate of the product from the bottom of the column in response to larger one of a first deviation between the first content of the intended component with a high boiling point and its desired value and a second deviation between the second content of the intended component with a low boiling point and its desired value when the control directions of the flow rate of said product from the bottom of the column by the polarities of the first and second deviations are same; controlling the flow rate of said product from the bottom of the column in accordance with a second corrected desired value which is obtained by correcting the desired value in response to the second deviation when the control directions of the flow rate of said product from the bottom of the column by the polarities of the first and second deviations are different and controlling the reflux rate in response to a large one of the first and second deviations; and controlling the flow rate of said product from the bottom of the column in accordance with the limited values in a given range when the first and second desired values do not fall in said range and controlling the reflex rate in accordance with said limited values.
460568
Nippon Zeon Co. Ltd.
Robic Robic & Associes/associates
LandOfFree
Process for controlling distillation column does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for controlling distillation column, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for controlling distillation column will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1183307