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.:
Date of Patent:
Feb. 19, 2019
Filed:
Jun. 02, 2015
Method for in-line quantitative analysis of a stream in a production plant for the synthesis of urea
Applicant:
Casale SA, Lugano, CH;
Inventor:
Luca Rugnone, Como, IT;
Assignee:
Casale SA, Lugano, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/44 (2006.01); G01N 21/65 (2006.01); C07C 273/04 (2006.01); G01N 21/84 (2006.01); G01N 21/85 (2006.01);
U.S. Cl.
CPC ...
G01N 21/65 (2013.01); C07C 273/04 (2013.01); G01N 2021/8411 (2013.01); G01N 2021/8416 (2013.01); G01N 2021/8578 (2013.01); Y02P 20/142 (2015.11);
Abstract
The invention discloses the use of Raman spectroscopy to analyze one or more process streams () of a urea synthesis production plant, where urea is synthesised from ammonia and carbon dioxide at high pressure (100-300 bar) and high temperature (50-250° C.). The radiation generated by the Raman scattering is analyzed to determine the concentration of components such as urea, ammonia and carbon dioxide in the process streams (). A logic system implemented in a plant control unit () generates signals to target plant actuators to optimize the operation.