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:
Oct. 10, 1995
Filed:
Mar. 09, 1994
Applicant:
Inventor:
Eric Wachsman, Palo Alto, CA (US);
Assignee:
Gas Research Institute, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ; C25B / ;
U.S. Cl.
CPC ...
204 / ; 204252 ; 4232391 ; 422169 ; 422178 ; 422180 ;
Abstract
A method is provided for selectively removing nitrogen oxides from gaseous mixtures using alkali and/or alkaline earth oxides as sorbents, followed by conversion of the adsorbed NO.sub.x into N.sub.2 and O.sub.2 using a solid-oxide electrochemical cell. The method is useful for treating many sources of nitrogen oxide pollutants, e.g., vehicle exhaust, industrial manufacturing, coal burning, and the like.