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.

Date of Patent:
Feb. 20, 2001

Filed:

Aug. 11, 1999
Applicant:
Inventors:

Jean-Christophe Rostaing, Buc, FR;

Jean-Claude Parent, Garches, FR;

Francis Bryselbout, Le Mesnil St. Denis, FR;

Michel Moisan, Outremont, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 1/00 ; B01D 4/700 ; B01D 5/300 ; H05F 3/00 ;
U.S. Cl.
CPC ...
C01B 1/00 ; B01D 4/700 ; B01D 5/300 ; H05F 3/00 ;
Abstract

Provided are a process and apparatus for purifying a gas. In accordance with the process, the gas to be purified flows through a hollow dielectric tube. An electric field is created in the gas to be purified by a traveling electromagnetic wave which travels in the dielectric tube and creates, in the gas, an atmospheric-pressure plasma which is not in local thermodynamic equilibrium, for the purpose of dissociating impurities in the gas to form reactive compounds. The formed reactive compounds are reacted with a corresponding reactive material for eliminating the reactive compounds from the gas to be purified.


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