Chemical filter unit and gas cleaning system

B - Operations – Transporting – 01 – D

Patent

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183/109, 23/419

B01D 39/14 (2006.01) B01D 39/16 (2006.01) B01D 53/04 (2006.01) B01J 47/12 (2006.01)

Patent

CA 2296477

A chemical filter unit, which comprises a filter medium formed by laminating a plurality of fiber sheets and a housing for containing the filter medium, and has a gas inlet open on one face of the housing and a gas outlet open on the other face substantially in opposite to the gas inlet, characterized in that gas passages to allow the flow of the gas along the surfaces of the fiber sheets are formed between the respectively adjacent fiber sheets of the filter medium from the gas inlet to the gas outlet, and that the adsorption capacity of the filter medium is 300 eq/m3 or more. It is preferable that the fibers constituting the fiber sheets are ion exchange fibers.

L'invention concerne un appareil de filtrage chimique. Cet appareil se compose d'un milieu filtrant conçu par laminage de plusieurs feuilles en fibres et d'un cadre où est logé le milieu filtrant. Ce cadre possède une entrée de gaz ménagée dans une de ses parois et une sortie ménagée dans une autre de ses parois qui est sensiblement opposée à la paroi précédente. Des passages pour écoulement de gaz, qui permettent à un gaz de passer le long des surfaces des feuilles en fibres du milieu filtrant, sont situés entre des feuilles de fibres adjacentes. Ces passages peuvent ainsi aller de l'entrée de gaz vers la sortie de gaz. Ledit milieu filtrant possède une capacité d'adsorption d'au moins 300 eq/m<3>. La fibre des feuilles en fibres est de préférence une fibre échangeuse d'ions.

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