Medium for photocatalytic filter

Details Medium for photocatalytic filter Medium for photocatalytic filter

B - Operations, Transporting

01

J

B01J 35/00 (2006.01) B01J 35/06 (2006.01) C03C 25/42 (2006.01)

Patent

CA 2695314

The invention relates to a photocatalytic-action filtration medium having a thickness of at least 2 mm, homogenous and without any opening visible to the naked eye, that comprises a felt of inorganic fibres in which the fibres are coated with a coating containing a photocatalytic-action catalyst, said felt having a basis weight of between 30 and 80 g/m2, said coating representing 5 to 80% of the mass of said medium, said medium having a gas head loss lower than 150 Pa at 1 m/sec in a non-folded state. The medium is intended for containing a gas (e.g. air) cleaner, and also comprises a system for the UV-lighting of said medium. The medium has an excellent purification efficiency and a very low head loss.

L'invention concerne un média filtrant à action photocatalytique d'au moins 2 mm d'épaisseur, homogène et sans orifice apparent à l'oeil nu, comprenant un feutre de fibres inorganiques dont les fibres sont revêtues d'un revêtement comprenant un catalyseur à action photocatalytique, ledit feutre présentant une masse surfacique comprise entre 30 et 80 g/m2, ledit revêtement représentant 5 à 80% de la masse dudit média, ledit média présentant une perte de charge au gaz inférieure à 150 Pa à 1 m/s en condition non plissé. Ce média est destiné à intégrer un épurateur de gaz comme l'air, comprenant par ailleurs un système d'illumination par UV dudit média. Le média présente une excellente efficacité de purification et une très faible perte de charge.

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