MEDIA POUR FILTRE PHOTOCATALYTIQUE

• Main Authors: SARGOOD PAUL, MOLINS LAURENT, RIVIERE JEAN PAUL
• Format: Patent
• Language: French
• Published: 13.02.2009
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLEANING; CLEANING IN GENERAL; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREVENTION OF FOULING IN GENERAL; SEPARATION; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; THEIR RELEVANT APPARATUS; TRANSPORTING

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/m , 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. E média présente une excellente efficacité de purification et une très faible perte de charge. The invention relates to a filtering media having a photocatalytic action which has a thickness of at least 2 mm, which is homogeneous and which is devoid of orifice apparent to the naked eye, comprising a felt of inorganic fibers, the fibers of which are coated with a coating comprising a catalyst having a photocatalytic action, said felt exhibiting a weight per unit area of between 30 and 80 g/m2, said coating representing 5 to 80% of the weight of said media, said media exhibiting a gas pressure drop of less than 150 Pa at 1 m/s in unpleated condition. This media is intended to be incorporated in a purifier of gas, such as air, furthermore comprising a system for illuminating said media with UV radiation. The media exhibits an excellent purification efficiency and a very low pressure drop.