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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 11203570 B1

PDFFull Text
Date of Patent:
Dec. 21, 2021

Filed:

Feb. 04, 2019

Virtual sensing method and system for controlling a composition variable in a urea production process

Applicant:

Yara International Asa, Oslo, NO;

Inventors:

Volker Siepmann, Holsbeek, BE;

Lino Giovanni Porro, Etterbeek, BE;

Elisa Burgato, Occhiobello, IT;

Assignee:

YARA INTERNATIONAL ASA, Oslo, NO;

Attorney:

Dilworth IP, LLC

Primary Examiner:

Sudhakar Katakam

Assistant Examiner:

Jennifer C Sawyer

Int. Cl.
CPC ...
C07C 273/04 (2006.01); B01J 19/00 (2006.01); G05B 13/04 (2006.01);
U.S. Cl.
CPC ...
C07C 273/04 (2013.01); B01J 19/0006 (2013.01); G05B 13/041 (2013.01); B01J 2219/002 (2013.01); B01J 2219/00186 (2013.01); B01J 2219/00243 (2013.01);
Abstract

The invention relates to a virtual sensing method and system for controlling at least one composition variable in a urea production process, based on a plurality of online measured process variables and a model, wherein the model is used to estimate, during the urea production process, the at least one composition variable indicative of a urea content on the basis of the plurality of online measured process variables, and modifying at least one of the plurality of online measured process variables for ensuring that a value of the at least one composition variable is within a predetermined range. The invention also relates to determining the model.

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Siepmann, Volker. (2021). Virtual sensing method and system for controlling a composition variable in a urea production process (U.S. Patent No. 11203570). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11203570

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