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:
Nov. 23, 2004
Filed:
Jun. 13, 2002
Applicant:
Inventor:
Michel Perrut, Nancy, FR;
Assignee:
Separex, Champigneulles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/102 ;
U.S. Cl.
CPC ...
B01D 1/102 ;
Abstract
The invention concerns a method for capturing very fine particles present in a fluid flux in liquid, gaseous or supercritical state and a device therefor. The method is characterized in that it comprises steps which consist in: causing said flux to pass through a filtering element ( ); stopping the emission of said flux; countercurrent clearing of the filtering material ( ) with a carbon dioxide flow under pressure, so as to drive the particles deposited on the filtering material ( ); countercurrent expanding of the flux, so as to trap the particles within a solid carbon dioxide snow-type mixture formed during its expansion.