Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1997-01-21
1998-12-01
Bhat, Nina
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
42324402, 422177, 502242, 502309, B01J 800, B01J 2108, B01D 5000
Patent
active
058433902
ABSTRACT:
A method of using an improved catalytic filter material for removing contaminants such as NO.sub.x from a fluid stream. The filter employs composite fibers of expanded polytetrafluoroethylene (PTFE) filled with catalytic particles. The composite fibers are chopped into staple fibers and made into a felt material. Preferably, the felt material is then laminated on at least one side with a protective microporous membrane. The combined filter removes both macro-particles, such as dust, from the filter stream before the dust can clog active catalytic sites and effectively catalytically coverts undesirable contaminants in the fluid stream to acceptable end products.
REFERENCES:
patent: 3925248 (1975-12-01), Moroni et al.
patent: 3953566 (1976-04-01), Gore
patent: 3962153 (1976-06-01), Gore
patent: 4042352 (1977-08-01), Shiga et al.
patent: 4053557 (1977-10-01), Kageyama
patent: 4096227 (1978-06-01), Gore
patent: 4187390 (1980-02-01), Gore
patent: 4220633 (1980-09-01), Pirsh
patent: 4259209 (1981-03-01), Nakane et al.
patent: 4309386 (1982-01-01), Pirsh
patent: 4332698 (1982-06-01), Bernstein et al.
patent: 4358396 (1982-11-01), Bernstein et al.
patent: 4518705 (1985-05-01), Solomon et al.
patent: 4728503 (1988-03-01), Iida et al.
patent: 4732879 (1988-03-01), Kalinowski et al.
patent: 4793981 (1988-12-01), Doyle et al.
patent: 4833877 (1989-05-01), Ahland et al.
patent: 4916110 (1990-04-01), Manniso
patent: 4983434 (1991-01-01), Sassa
patent: 5000624 (1991-03-01), Steiger
patent: 5051391 (1991-09-01), Tomisawa et al.
patent: 5064792 (1991-11-01), Jaras et al.
patent: 5221484 (1993-06-01), Goldsmith et al.
patent: 5262234 (1993-11-01), Minor et al.
patent: 5304362 (1994-04-01), Madsen
patent: 5324579 (1994-06-01), Sassa et al.
patent: 5342434 (1994-08-01), Wu
patent: 5417743 (1995-05-01), Dauber
patent: 5437900 (1995-08-01), Kuzowski
patent: 5492873 (1996-02-01), Maier
patent: 5496396 (1996-03-01), Allan et al.
patent: 5500038 (1996-03-01), Dauber et al.
patent: 5599614 (1997-02-01), Bahar et al.
patent: 5620669 (1997-04-01), Plinke et al.
Brinckman Glenn A.
Mortimer, Jr. William P.
Plinke Marc
Sassa Robert L.
Bhat Nina
Lewis White Carol A.
W. L. Gore & Associates, Inc.
LandOfFree
Method of using a catalytic filter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of using a catalytic filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of using a catalytic filter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2393160