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:
Apr. 23, 2019
Filed:
Dec. 15, 2017
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventors:
Ryan C. Hartley, Kerrville, TX (US);
Gordon J. J. Bartley, San Antonio, TX (US);
Assignee:
SOUTHWEST RESEARCH INSTITUTE, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/20 (2006.01); C01C 1/08 (2006.01); B01J 21/06 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
F01N 3/2073 (2013.01); B01D 53/9418 (2013.01); B01J 21/063 (2013.01); C01C 1/086 (2013.01); B01D 2255/20707 (2013.01); F01N 2240/25 (2013.01); F01N 2610/01 (2013.01); F01N 2610/02 (2013.01);
Abstract
The present disclosure is directed at treatment of reductant urea solutions with water soluble organometallic catalyst precursors which convert to active catalyst compounds in diesel exhaust gas systems. The active catalysts then promote hydrolysis of isocyanic acid into ammonia and/or decomposition of relatively high molecular weight deposits which deposits may otherwise reduce selective catalytic reduction efficiency.