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:
Sep. 20, 2016
Filed:
Dec. 04, 2013
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventor:
Imad Said Abdul-Khalek, San Antonio, TX (US);
Assignee:
SOUTHWEST RESEARCH INSTITUTE, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 31/00 (2006.01);
U.S. Cl.
CPC ...
G01N 31/005 (2013.01); G01N 33/0014 (2013.01); G01N 33/0047 (2013.01); Y10T 436/204998 (2015.01);
Abstract
A method and system of measuring non-methane hydrocarbons in exhaust gas. The method includes sampling exhaust gas, wherein the exhaust gas includes native carbon dioxide, non-methane hydrocarbons and methane. The native carbon dioxide present in the exhaust gas is removed followed by oxidation of the non-methane hydrocarbons to produce carbon dioxide. The concentration of carbon dioxide is then measured and provides a direct indication of the non-methane hydrocarbon concentration.