B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 20/20 (2006.01) B01D 53/04 (2006.01) B01J 21/18 (2006.01) B01J 37/08 (2006.01) C01B 31/10 (2006.01)
Patent
CA 2191796
The present invention discloses an improved method for filtration of air within enclosed spaces. Improvement is achieved by the use of a high- temperature carbonaceous char that is catalytically active for the removal of certain undesirable constituents from contaminated air under ambient temperature conditions. This carbonaceous char is used as an air filtration medium and incorporated into an air filtration device by any of a number of technologies. Such devices may be used for removal of contaminants such as NOx, NO2, SOx, SO2, H2S, mercaptans, light aliphatic gases such as butane and propane and other compounds such as benzene, hexane, toluene, xylene, amines and the like from enclosed or confined structures such as buildings or vehicles including automobiles, aircrafts, trucks, farm equipment, and the like.
La présente invention concerne un procédé amélioré pour filtrer l'air dans des espaces clos. L'amélioration est réalisée en utilisant un charbon de bois carboné à haute température qui est catalytiquement actif pour supprimer certains constituants indésirables de l'air contaminé, à température ambiante. Ce charbon de bois carboné est utilisé comme moyen de filtration d'air et est incorporé dans un dispositif de filtration d'air, selon une technologie choisie parmi un grand nombre de technologies. Des dispositifs de ce type peuvent être utilisés pour supprimer des contaminants tels que du NO¿x?, NO¿2?, SO¿x?, SO¿2?, H¿2?S, des mercaptans, des gaz aliphatiques légers comme du butane et du propane et d'autres composants tels que du benzène, de l'hexane, du toluène, xylène, des amines et autres de structures closes et confinées, à savoir, des bâtiments ou des véhicules, y compris des automobiles, des avions, des camions, des engins agricoles et autres.
Cobes John W. III
Doughty David T.
Hayden Richard A.
Matviya Thomas M.
Borden Ladner Gervais Llp
Calgon Carbon Corporation
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