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:
Jul. 15, 2014
Filed:
Jul. 13, 2010
Shabbir Ahmed, Naperville, IL (US);
Sheldon H. D. Lee, Willowbrook, IL (US);
Romesh Kumar, Naperville, IL (US);
Dionissios D. Papadias, Chicago, IL (US);
Shabbir Ahmed, Naperville, IL (US);
Sheldon H. D. Lee, Willowbrook, IL (US);
Romesh Kumar, Naperville, IL (US);
Dionissios D. Papadias, Chicago, IL (US);
Uchicago Argonne, LLC, Chicago, IL (US);
Abstract
Provided herein are batch methods and devices for enriching trace quantities of impurities in gaseous mixtures, such as hydrogen fuel. The methods and devices rely on concentrating impurities using hydrogen transport membranes wherein the time period for concentrating the sample is calculated on the basis of optimized membrane characteristics, comprising its thickness and permeance, with optimization of temperature, and wherein the enrichment of trace impurities is proportional to the pressure ratio P/Pand the volume ratio V/V, with following detection of the impurities using commonly-available detection methods.