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. 12, 2024

Filed:

Aug. 30, 2019
Applicant:

Johnson Matthey Public Limited Company, London, GB;

Inventors:

Matthew John Cousins, Billingham, GB;

Michael Davies, Billingham, GB;

John David Pach, Billingham, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/00 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); C01B 3/38 (2006.01); F23N 1/00 (2006.01); G01J 5/10 (2006.01); G01N 21/39 (2006.01); G05D 23/19 (2006.01); G01J 5/00 (2022.01);
U.S. Cl.
CPC ...
C01B 3/384 (2013.01); B01J 19/0033 (2013.01); B01J 19/2415 (2013.01); F23N 1/002 (2013.01); G01J 5/10 (2013.01); G01N 21/39 (2013.01); G05D 23/1931 (2013.01); B01J 2219/00157 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/0811 (2013.01); C01B 2203/1619 (2013.01); F23N 2225/08 (2020.01); G01J 2005/0077 (2013.01); G01N 2021/399 (2013.01);
Abstract

A method is described for controlling a furnace containing a plurality of catalyst-containing tubes heated by a combustion gas generated by a plurality of burners, said method comprising the steps of: (i) measuring path-averaged combustion gas temperatures on multiple paths through the furnace using tunable diode laser absorption spectroscopy, (ii) periodically measuring temperatures of surfaces within the furnace to obtain periodic surface temperature information, (iii) entering the path-averaged combustion gas temperatures and periodic surface temperature information into a computer model of the furnace, said model comprising parameters for controlling the furnace; and (iv) using the computer model and the temperature information to obtain optimised parameters for controlling the furnace. A system for performing the method is also described.


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