CA2228597A1 - Catalytic filter material and method of making same - Google Patents
Catalytic filter material and method of making sameInfo
- Publication number
- CA2228597A1 CA2228597A1 CA002228597A CA2228597A CA2228597A1 CA 2228597 A1 CA2228597 A1 CA 2228597A1 CA 002228597 A CA002228597 A CA 002228597A CA 2228597 A CA2228597 A CA 2228597A CA 2228597 A1 CA2228597 A1 CA 2228597A1
- Authority
- CA
- Canada
- Prior art keywords
- filter
- catalytic
- filter material
- dust
- particles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003197 catalytic effect Effects 0.000 title abstract 4
- 239000000463 material Substances 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000835 fiber Substances 0.000 abstract 3
- 239000002131 composite material Substances 0.000 abstract 2
- 239000000356 contaminant Substances 0.000 abstract 2
- 239000000428 dust Substances 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- 239000002245 particle Substances 0.000 abstract 2
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000012982 microporous membrane Substances 0.000 abstract 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract 1
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
- B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
- B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1692—Other shaped material, e.g. perforated or porous sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
- B01D53/885—Devices in general for catalytic purification of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
-
- B01J35/58—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0654—Support layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0659—The layers being joined by needling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0668—The layers being joined by heat or melt-bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0681—The layers being joined by gluing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1216—Pore size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1241—Particle diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
- Y10T428/1366—Textile, fabric, cloth, or pile is sandwiched between two distinct layers of material unlike the textile, fabric, cloth, or pile layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249981—Plural void-containing components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/102—Woven scrim
- Y10T442/152—Including a free metal or alloy constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/102—Woven scrim
- Y10T442/164—Including a preformed film, foil, or sheet
- Y10T442/167—Fluorinated polyolefin film or sheet
Abstract
The present invention is an improved catalytic filter material for use in removing contaminants such as NOx from a fluid stream . The filter of the present invention 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 converts undesirable contaminants in the fluid stream to acceptable end products.
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 converts undesirable contaminants in the fluid stream to acceptable end products.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/515,195 | 1995-08-15 | ||
US08/515,195 US5620669A (en) | 1995-08-15 | 1995-08-15 | Catalytic filter material and method of making same |
PCT/US1996/009760 WO1997006877A1 (en) | 1995-08-15 | 1996-06-07 | Catalytic filter material and method of making same |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2228597A1 true CA2228597A1 (en) | 1997-02-27 |
CA2228597C CA2228597C (en) | 2001-04-17 |
Family
ID=24050340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002228597A Expired - Lifetime CA2228597C (en) | 1995-08-15 | 1996-06-07 | Catalytic filter material and method of making same |
Country Status (11)
Country | Link |
---|---|
US (2) | US5620669A (en) |
EP (1) | EP0854751B1 (en) |
JP (2) | JP3618761B2 (en) |
AT (1) | ATE322938T1 (en) |
AU (1) | AU703305B2 (en) |
CA (1) | CA2228597C (en) |
DE (1) | DE69636038T2 (en) |
DK (1) | DK0854751T3 (en) |
ES (1) | ES2259796T3 (en) |
PT (1) | PT854751E (en) |
WO (1) | WO1997006877A1 (en) |
Families Citing this family (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5620669A (en) * | 1995-08-15 | 1997-04-15 | W. L. Gore & Associates, Inc. | Catalytic filter material and method of making same |
US5755962A (en) * | 1996-11-26 | 1998-05-26 | Isp Investments Inc. | Filter bag and process of manufacture |
DE19720981A1 (en) * | 1997-05-20 | 1998-11-26 | Abb Research Ltd | Gas filter |
US6136412A (en) * | 1997-10-10 | 2000-10-24 | 3M Innovative Properties Company | Microtextured catalyst transfer substrate |
US5989709A (en) * | 1998-04-30 | 1999-11-23 | Gore Enterprises Holdings, Inc. | Polytetrafluoroethylene fiber |
US6196708B1 (en) * | 1998-05-14 | 2001-03-06 | Donaldson Company, Inc. | Oleophobic laminated articles, assemblies of use, and methods |
US6331351B1 (en) * | 1999-09-22 | 2001-12-18 | Gore Enterprise Holdings, Inc. | Chemically active filter material |
DE10064409A1 (en) * | 2000-12-21 | 2002-06-27 | Basf Ag | Particle-fiber agglomerates |
CA2451597C (en) | 2001-07-12 | 2010-12-14 | Joseph P. Ouellette | Biomass heating system |
US6517612B1 (en) | 2001-10-29 | 2003-02-11 | Gore Enterprise Holdings, Inc. | Centrifugal filtration device |
US6811721B1 (en) | 2003-05-30 | 2004-11-02 | E. I. Du Pont De Nemours And Company | Composition and method for reduction of persistent bio-accumulative and toxic pollutants in carbochlorination processes |
US20040074391A1 (en) * | 2002-10-16 | 2004-04-22 | Vincent Durante | Filter system |
US7442352B2 (en) * | 2003-06-20 | 2008-10-28 | Gore Enterprise Holdings, Inc. | Flue gas purification process using a sorbent polymer composite material |
ES2546393T3 (en) | 2004-04-20 | 2015-09-23 | Genzyme Corporation | Surgical mesh implant |
CA2594540A1 (en) * | 2005-01-10 | 2006-07-20 | University Of North Dakota | Mercury oxidation of flue gas using catalytic barrier filters |
US7604687B2 (en) * | 2005-06-03 | 2009-10-20 | Daramic Llc | Gas filtration media |
US8187733B2 (en) * | 2005-08-02 | 2012-05-29 | W. L. Gore & Associates, Inc. | Architectural fabric |
EP1960086A1 (en) * | 2005-12-16 | 2008-08-27 | Corning Inc. | Low pressure drop coated diesel exhaust filter |
CA2642186A1 (en) | 2006-02-13 | 2007-08-23 | Donaldson Company, Inc. | Filter web comprising fine fiber and reactive, adsorptive or absorptive particulate |
CN100447317C (en) * | 2006-11-30 | 2008-12-31 | 浙江理工大学 | Method for preparing expanded polytetrafluoroethylene fiber for exhaust decomposition |
US20080166938A1 (en) * | 2007-01-09 | 2008-07-10 | Teadit Industria E Comercio Ltda. | Microfiber split film filter felt and method of making same |
US7837756B2 (en) | 2007-04-05 | 2010-11-23 | Aaf-Mcquay Inc. | Filter with ePTFE and method of forming |
ITMI20070750A1 (en) * | 2007-04-13 | 2008-10-14 | Dulevo Int Spa | BRUSHING MACHINE INCLUDING A PERFECT FILTERING DEVICE |
CN100488610C (en) * | 2007-07-10 | 2009-05-20 | 浙江理工大学 | Method for preparation of polytetrafluorethylene microporous film for the processing of high-temperature fume and dust |
US8007573B2 (en) * | 2007-09-28 | 2011-08-30 | General Electric Company | Filter and associated method |
US8110283B2 (en) * | 2007-09-28 | 2012-02-07 | General Electric Company | Article and associated method |
CN101255615B (en) * | 2008-04-08 | 2010-06-02 | 浙江理工大学 | Preparation method of varicosity polytetrafluoroethylene fibre having function for catalytic decomposition of dioxins |
US8673040B2 (en) | 2008-06-13 | 2014-03-18 | Donaldson Company, Inc. | Filter construction for use with air in-take for gas turbine and methods |
US8114201B2 (en) * | 2008-10-22 | 2012-02-14 | Gore Enterprise Holdings, Inc. | Air pollution control filter elements for filtration systems |
KR101672309B1 (en) * | 2008-10-27 | 2016-11-03 | 세파르 비디에이치 인코포레이티드 | Filter bag, pleatable filtration material therefore, and process of making same |
JP5455407B2 (en) * | 2009-03-25 | 2014-03-26 | 日本ゴア株式会社 | Method for producing expanded polytetrafluoroethylene porous membrane or tape carrying catalyst particles and filter for removing ozone |
CN101580973B (en) * | 2009-04-23 | 2011-02-02 | 浙江理工大学 | Method for preparing polyfluortetraethylene fiber with dioxin decomposition function |
US20110045218A1 (en) * | 2009-08-21 | 2011-02-24 | Harper Nancy L | Dynamic inks and coatings |
US20110146493A1 (en) * | 2009-12-22 | 2011-06-23 | General Electric Company | Filter bag and laminated filter media |
CN102091658B (en) * | 2010-12-27 | 2013-07-10 | 北京工业大学 | Dust adhesion-resistant coated denitration catalytic sphere and preparation method thereof |
WO2013019393A1 (en) * | 2011-07-29 | 2013-02-07 | Flsmidth A/S | Pollution control system for kiln exhaust |
CN102698740A (en) * | 2012-06-29 | 2012-10-03 | 南京工业大学 | Bag-type NOx-removing catalyst and preparation method thereof |
US20140263026A1 (en) * | 2013-03-15 | 2014-09-18 | Hayward Industries, Inc. | Filtration Media and Filter Therefor |
CZ307624B6 (en) * | 2013-05-10 | 2019-01-23 | Technická univerzita v Liberci | Composite material for filtration of combustion products and method of making such material |
US9181888B2 (en) | 2013-10-28 | 2015-11-10 | Cummins Inc. | Selectively trapping and storing SO3 in an exhaust gas effluent |
US20150182898A1 (en) * | 2013-12-31 | 2015-07-02 | Bha Altair, Llc | Ridgid porous plastic filters incorporating polymeric particles and polymeric fibers |
CN103820999A (en) * | 2014-02-27 | 2014-05-28 | 江苏东方滤袋有限公司 | Finishing method for bag type dedusting material and prepared dedusting material |
AR100119A1 (en) * | 2014-03-21 | 2016-09-14 | Haldor Topsoe As | MOUNTING FILTER BAGS |
CN104941316B (en) * | 2015-06-05 | 2017-01-18 | 南通大学 | Method for preparing smoke filtering material with NO catalytic decomposition capability |
CN105013249B (en) * | 2015-07-02 | 2017-01-11 | 辽宁鸿盛环境技术集团股份有限公司 | Nitre and dioxin-removal PPS composite felt functional filtering material and preparation method thereof |
CN104971704A (en) * | 2015-07-09 | 2015-10-14 | 常州大学 | Adsorption material for vehicle tail gas treatment |
EP3389818B1 (en) | 2015-12-17 | 2019-11-20 | W. L. Gore & Associates, Inc. | Article with catalytic material |
MX2018009970A (en) * | 2016-03-07 | 2018-11-09 | Topsoe Haldor As | Preparation of a catalytic fabric filter with lower pressure drop. |
US20180117202A1 (en) * | 2016-11-03 | 2018-05-03 | Weiming Gao | Reactivatable air purification pad with molecular sieves and process |
CN106731238A (en) * | 2017-02-28 | 2017-05-31 | 武汉科技大学 | A kind of production method of the polytetrafluoroethylfilter filter material with catalysis |
JPWO2018174137A1 (en) * | 2017-03-24 | 2020-01-23 | 東レ株式会社 | Filter media and bag filters |
USD912793S1 (en) | 2017-05-23 | 2021-03-09 | Molekule, Inc. | Air purifier |
KR102464128B1 (en) | 2017-10-17 | 2022-11-09 | 몰레쿠울, 인크. | Systems and methods for photoelectrochemical air purification |
US10625207B2 (en) | 2017-11-01 | 2020-04-21 | Molekule, Inc. | System for photoelectrochemical air purification |
WO2019099025A1 (en) | 2017-11-17 | 2019-05-23 | W. L. Gore & Associates, Inc. | Multilayer composite with catalytic mixed matrix membrane layer |
CN107961619B (en) * | 2017-12-11 | 2021-02-09 | 中材科技膜材料(山东)有限公司 | Preparation method of multifunctional membrane-covered filter material |
US11224853B2 (en) | 2018-04-11 | 2022-01-18 | W. L. Gore & Associates, Inc. | Metal supported powder catalyst matrix and processes for multiphase chemical reactions |
KR101971645B1 (en) * | 2018-06-29 | 2019-04-23 | 한국기계연구원 | Filter comprising a coating layer of flake-like powders and a preparation method thereof |
CN112739655B (en) * | 2018-07-26 | 2023-04-25 | 摩乐酷公司 | Fluid filtration systems and methods of use |
CN109603310A (en) * | 2018-12-07 | 2019-04-12 | 江苏通盛滤袋有限公司 | A kind of laminated needled felt resistant to chemical etching |
CN113677422B (en) * | 2019-04-12 | 2024-02-02 | W.L.戈尔及同仁股份有限公司 | Large particle high performance catalytic belt |
US11071947B2 (en) | 2019-10-30 | 2021-07-27 | W. L. Gore & Associates, Inc. | Catalytic efficiency of flue gas filtration |
US10940471B1 (en) * | 2019-10-30 | 2021-03-09 | W. L. Gore & Associates, Inc. | Catalytic efficiency of flue gas filtration |
US11097525B1 (en) | 2020-02-03 | 2021-08-24 | Molekule, Inc. | Filter media and system and method for manufacture thereof |
USD1001257S1 (en) | 2020-07-29 | 2023-10-10 | Molekule, Inc. | Filtration device |
WO2022047421A1 (en) | 2020-08-31 | 2022-03-03 | Molekule, Inc. | Air filter and filter media thereof |
CN113733699B (en) * | 2021-09-03 | 2023-04-11 | 天台宏辉过滤科技有限公司 | Self-cleaning liquid filter cloth and preparation method thereof |
KR102478940B1 (en) * | 2021-11-30 | 2022-12-19 | 주식회사 마이크로원 | Method for manufacturing ptfe fiber and a ptfe membrane catalytic filter using the same |
Family Cites Families (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA962021A (en) * | 1970-05-21 | 1975-02-04 | Robert W. Gore | Porous products and process therefor |
US3962153A (en) * | 1970-05-21 | 1976-06-08 | W. L. Gore & Associates, Inc. | Very highly stretched polytetrafluoroethylene and process therefor |
US3925248A (en) * | 1971-05-11 | 1975-12-09 | Collo Rheincollodium Koln Gmbh | Filter medium for gases |
US4053557A (en) * | 1973-05-14 | 1977-10-11 | Mitsubishi Chemical Industries Ltd. | Method of decomposing chlorohydrocarbons |
US4096227A (en) * | 1973-07-03 | 1978-06-20 | W. L. Gore & Associates, Inc. | Process for producing filled porous PTFE products |
US3965035A (en) * | 1974-09-18 | 1976-06-22 | Corning Glass Works | Enzyme carrier regeneration |
JPS51123966A (en) * | 1975-04-22 | 1976-10-29 | Sumitomo Chem Co Ltd | Removing method of dust contained in a combustion exhaust gas |
JPS5289560A (en) * | 1976-01-23 | 1977-07-27 | Mitsui Toatsu Chem Inc | Removal of nitrogen oxides |
JPS5298674A (en) * | 1976-02-13 | 1977-08-18 | Kobe Steel Ltd | Denitration apparatus for exhasut gas |
CA1117096A (en) * | 1977-06-30 | 1982-01-26 | Exxon Research And Engineering Company | Sizing and shaping of catalysts |
FR2427296A1 (en) * | 1978-04-28 | 1979-12-28 | Rikagaku Kenkyusho | CATALYST FOR CONCENTRATING HYDROGEN ISOTOPES AND PROCESS FOR THE PRODUCTION OF A SUPPORT FOR THIS CATALYST |
US4220633A (en) * | 1979-04-30 | 1980-09-02 | The Babcock & Wilcox Company | Filter house and method for simultaneously removing NOx and particulate matter from a gas stream |
US4309386A (en) * | 1979-04-30 | 1982-01-05 | The Babcock & Wilcox Company | Filter house having catalytic filter bags for simultaneously removing NOx and particulate matter from a gas stream |
JPS5651230A (en) * | 1979-10-04 | 1981-05-08 | Mitsubishi Heavy Ind Ltd | Cleaning method for combustion waste gas |
US4518705A (en) * | 1980-10-31 | 1985-05-21 | Eltech Systems Corporation | Three layer laminate |
US4332698A (en) * | 1981-01-19 | 1982-06-01 | Mpd Technology Corporation | Catalyst sheet and preparation |
US4358396A (en) * | 1981-01-19 | 1982-11-09 | Mpd Technology Corporation | Particulate catalyst and preparation |
DE3404277A1 (en) * | 1984-02-08 | 1985-08-08 | Metallgesellschaft Ag, 6000 Frankfurt | Steam production plant with a flue gas cleaning device |
US4728503A (en) * | 1984-11-02 | 1988-03-01 | Mitsubishi Jukogyo Kabushiki Kaisha | Filter medium for treating an exhaust gas |
US4732879A (en) * | 1985-11-08 | 1988-03-22 | Owens-Corning Fiberglas Corporation | Method for applying porous, metal oxide coatings to relatively nonporous fibrous substrates |
DE3604946A1 (en) * | 1986-02-17 | 1986-07-31 | Mehdi Haji Dr.-Ing. 7259 Friolzheim Javad | Process and plants for purifying flue gases |
DE3629817A1 (en) * | 1986-09-02 | 1988-03-03 | Bergwerksverband Gmbh | METHOD FOR REDUCING POLLUTANT EMISSIONS FROM POWER PLANTS WITH COMBINED GAS / STEAM TURBINE PROCESSES WITH UPstream CARBON GASIFICATION |
DE3633214A1 (en) * | 1986-09-30 | 1988-03-31 | Siemens Ag | Flue gas pipe having a device for decreasing nitrogen oxides |
US4793981A (en) * | 1986-11-19 | 1988-12-27 | The Babcock & Wilcox Company | Integrated injection and bag filter house system for SOx -NOx -particulate control with reagent/catalyst regeneration |
DD253767A1 (en) * | 1986-11-24 | 1988-02-03 | Tech Hochschule C Schorlemmer | METHOD FOR REMOVING NITRIC OXIDES FROM EXHAUST GASES |
DE3642179A1 (en) * | 1986-12-10 | 1988-06-23 | Hoelter Heinz | Process and apparatus for simultaneous SO2 and NOx separation downstream of combustion plants having a coke-precoat filter system |
EP0305748A3 (en) * | 1987-09-04 | 1990-05-02 | Ransburg-Gema AG | Preparation installation for coating powder |
US5051391A (en) * | 1988-04-08 | 1991-09-24 | Mitsubishi Jukogyo Kabushiki Kaisha | Catalyst filter and method for manufacturing a catalyst filter for treating a combustion exhaust gas |
US4916110A (en) * | 1988-11-01 | 1990-04-10 | W. L. Gore & Associates, Inc. | Microporous catalytic material and support structure |
SE464688B (en) * | 1989-02-27 | 1991-06-03 | Eka Nobel Ab | CATALYST FOR REDUCING NITROGEN OXIDES AND USING THEREOF |
SE465111B (en) * | 1989-04-07 | 1991-07-29 | Flaekt Ab | PROCEDURES FOR WASTE CLEANING OF WASTE INCREASED FUEL GAS |
US4983434A (en) * | 1989-04-07 | 1991-01-08 | W. L. Gore & Associates, Inc. | Filter laminates |
SE467646B (en) * | 1989-11-20 | 1992-08-24 | Abb Carbon Ab | SEATED IN SMOKE GAS CLEANING IN PFBC PLANT |
JPH03277367A (en) * | 1990-03-27 | 1991-12-09 | Daikin Ind Ltd | Ozone deodorizing machine |
GB9010709D0 (en) * | 1990-05-12 | 1990-07-04 | Johnson Matthey Plc | Catalytic reduction |
JPH0429720A (en) * | 1990-05-25 | 1992-01-31 | Takeda Chem Ind Ltd | Treatment of gas |
DE4024804C2 (en) * | 1990-08-04 | 1993-11-25 | Metallgesellschaft Ag | Process for the separation of dust and organic compounds from exhaust gases |
DE4025052A1 (en) * | 1990-08-07 | 1992-02-13 | Siemens Ag | Sampling flue gas stream, esp. for sulphur di:oxide determn. - involves ammonia removal using nitrogen oxide(s) removing catalyst |
US5221484A (en) * | 1991-01-10 | 1993-06-22 | Ceramem Separations Limited Partnership | Catalytic filtration device and method |
JPH04235718A (en) * | 1991-01-11 | 1992-08-24 | Japan Vilene Co Ltd | Sheet for ozonolysis |
EP0646151B1 (en) * | 1991-06-14 | 1997-11-05 | W.L. Gore & Associates, Inc. | Surface modified porous expanded polytetrafluoroethylene and process for making |
JPH0515782A (en) * | 1991-07-08 | 1993-01-26 | Sekiyu Sangyo Kasseika Center | Catalyst for catalytic reduction of nitrogen oxide |
US5262234A (en) * | 1991-10-17 | 1993-11-16 | W. L. Gore & Associates, Inc. | Polyetrafluoroethylene fiber containing conductive filler |
US5229200A (en) * | 1991-12-18 | 1993-07-20 | W. L. Gore & Associates, Inc. | Static dissipative nonwoven textile material |
GB9202360D0 (en) * | 1992-02-04 | 1992-03-18 | Gore W L & Ass Uk | Ostomy filter |
DE4215582C1 (en) * | 1992-05-12 | 1993-12-16 | Degussa | DENOX - Catalyst for the low-temperature denitrification of flue gases |
DE4216772A1 (en) * | 1992-05-21 | 1993-12-16 | Ftu Forschung Und Tech Entwick | Pre-purified gas or waste gas denitrification - by oxidising nitric oxide to nitrogen di:oxide or nitric acid with hydrogen peroxide and absorption on calcium hydroxide powder, avoiding di:nitrogen oxide formation |
JPH06334A (en) * | 1992-06-16 | 1994-01-11 | Kurabo Ind Ltd | Filter for dust removal and denitration |
US5342434A (en) * | 1992-12-14 | 1994-08-30 | W. L. Gore & Associates, Inc. | Gas permeable coated porous membranes |
DE4303610A1 (en) * | 1993-02-09 | 1994-08-11 | Studiengesellschaft Kohle Mbh | Process for the production of poison-proof catalysts |
NL193951C (en) * | 1993-10-19 | 2001-03-02 | Akoestikon Geluidsisolatie B V | Vibration-absorbing construction element. |
US5417743A (en) * | 1994-01-21 | 1995-05-23 | W. L. Gore & Associates, Inc. | Self-adhesive vent filter and adsorbent assembly with a diffusion tube |
US5500038A (en) * | 1994-08-30 | 1996-03-19 | W. L. Gore & Associates, Inc. | Non-particulating compact adsorbent filter |
US5599614A (en) * | 1995-03-15 | 1997-02-04 | W. L. Gore & Associates, Inc. | Integral composite membrane |
US5620669A (en) * | 1995-08-15 | 1997-04-15 | W. L. Gore & Associates, Inc. | Catalytic filter material and method of making same |
-
1995
- 1995-08-15 US US08/515,195 patent/US5620669A/en not_active Expired - Lifetime
-
1996
- 1996-06-07 PT PT96919284T patent/PT854751E/en unknown
- 1996-06-07 CA CA002228597A patent/CA2228597C/en not_active Expired - Lifetime
- 1996-06-07 AT AT96919284T patent/ATE322938T1/en active
- 1996-06-07 DE DE69636038T patent/DE69636038T2/en not_active Expired - Lifetime
- 1996-06-07 WO PCT/US1996/009760 patent/WO1997006877A1/en active IP Right Grant
- 1996-06-07 EP EP96919284A patent/EP0854751B1/en not_active Expired - Lifetime
- 1996-06-07 DK DK96919284T patent/DK0854751T3/en active
- 1996-06-07 ES ES96919284T patent/ES2259796T3/en not_active Expired - Lifetime
- 1996-06-07 JP JP50925597A patent/JP3618761B2/en not_active Expired - Lifetime
- 1996-06-07 AU AU61659/96A patent/AU703305B2/en not_active Expired
-
1997
- 1997-01-21 US US08/786,589 patent/US5843390A/en not_active Expired - Lifetime
-
2002
- 2002-09-25 JP JP2002278921A patent/JP2003190721A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
AU703305B2 (en) | 1999-03-25 |
WO1997006877A1 (en) | 1997-02-27 |
EP0854751A1 (en) | 1998-07-29 |
JP3618761B2 (en) | 2005-02-09 |
ATE322938T1 (en) | 2006-04-15 |
EP0854751B1 (en) | 2006-04-12 |
JPH11508822A (en) | 1999-08-03 |
PT854751E (en) | 2006-07-31 |
DE69636038T2 (en) | 2006-11-30 |
ES2259796T3 (en) | 2006-10-16 |
US5843390A (en) | 1998-12-01 |
US5620669A (en) | 1997-04-15 |
JP2003190721A (en) | 2003-07-08 |
CA2228597C (en) | 2001-04-17 |
DE69636038D1 (en) | 2006-05-24 |
DK0854751T3 (en) | 2006-08-14 |
AU6165996A (en) | 1997-03-12 |
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