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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.

Patent No.:

US 12656224 B1

PDFFull Text
Date of Patent:
Jun. 16, 2026

Filed:

Nov. 29, 2022

System and method for evaluation of the deposition in tubes of the furnaces of a delayed coking unit

Applicant:

Petróleo Brasileiro S.a.—petrobras, Rio de Janeiro, BR;

Inventors:

Iris Medeiros Junior, Rio de Janeiro, BR;

Luiz Andre Guedine Santos, Rio de Janeiro, BR;

Marco Antonio Gomes Teixeira, Duque de Caxias, BR;

Fernando Garcia Diniz, Rio de Janeiro, BR;

Assignee:

Petróleo Brasileiro S.A.—Petrobras, Rio de Janeiro, BR;

Attorney:

Morrison & Foerster LLP

Primary Examiner:

Peter J Macchiarolo

Assistant Examiner:

Monica S Young

Int. Cl.
CPC ...
G01M 99/00 (2011.01); C10B 55/00 (2006.01); C10B 57/04 (2006.01); C10B 57/06 (2006.01); C10G 9/20 (2006.01); F27D 21/00 (2006.01); G01N 5/00 (2006.01); G01N 17/00 (2006.01); G01N 25/20 (2006.01);
U.S. Cl.
CPC ...
G01M 99/005 (2013.01); C10B 57/045 (2013.01); C10B 57/06 (2013.01); C10G 9/206 (2013.01); F27D 21/0014 (2013.01); G01M 99/00 (2013.01); G01M 99/002 (2013.01); G01N 5/00 (2013.01); G01N 17/008 (2013.01); G01N 25/20 (2013.01); C10B 55/00 (2013.01); C10G 2300/4075 (2013.01); F27D 2021/0007 (2013.01);
Abstract

The present invention addresses to a system and methodology for evaluating the deposition in tubes of the furnaces of delayed coking unit (DCU) in order to reduce the costs involved with premature shutdowns. With this system, load rankings are obtained, influences of certain loads on processing are evaluated, and additives that reduce deposition are further evaluated. Consequently, the results obtained by such a system allow greater flexibility for the follow-up engineer to optimize his delayed coking unit in order to increase load or increase the unit campaign time, drastically reducing costs in premature shutdowns, or increasing its return by increasing load and shutdowns, since the load is limited by the degree of deposit formation, and that directly affects the wall temperature.

Find Patent Forward Citations

Medeiros Junior, Iris. (2026). System and method for evaluation of the deposition in tubes of the furnaces of a delayed coking unit (U.S. Patent No. 12656224). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12656224

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

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