The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 15, 1988

Filed:

Jul. 07, 1986
Applicant:
Inventors:

Gary L Funk, Bartlesville, OK (US);

Terrence A Davis, Bartlesville, OK (US);

Bruce A Jensen, Bartlesville, OK (US);

Assignee:

Phillips Petroleum Company, Bartlesville, OK (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
208347 ; 208D / ; 208160 ; 203-1 ; 202160 ;
Abstract

A computer control system for automatically optimizing the temperature of the feed supplied to a distillation column from a fuel fired preheat furnace, wherein the furnace temperature is manipulated in response to a measured ratio of distillate flow (D) from the tower to fuel flow (F) to the furnace. The D/F ratio is maximized by periodically comparing the present value of D/F to the previous value and incrementally increasing the furnace temperature as long as the D/F ratio increases. When no change is detected or the D/F ratio starts to decrease the furnace temperature is incrementally decreased until the D/F ratio again increases and reverses the control action once more.


Find Patent Forward Citations

Funk, Gary. (1988). Preheat control for a fractional distillation process (U.S. Patent No. 4731175). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4731175

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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