Device for the purification of contaminated exhaust air through

Details Device for the purification of contaminated exhaust air through Device for the purification of contaminated exhaust air through

1994-06-28

1996-10-22

McMahon, Timothy

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

422176, 422181, 422218, 502439, 502527, F01N 310

Patent

active

055673929

ABSTRACT:
A device for the purification of an exhaust gas containing at least one contaminant removable through heterogeneous catalysis and flowing through a chamber having an inlet and an outlet, comprises at least one disk structure positionable within the chamber and defining a central cavity alignable with the inlet of the chamber. The disk structure includes a non-metallic, gas-permeable and flexible carrier element comprising a band woven of glass fiber yarn. The yarn is formed of individual fibers coated with a layer of pulverized zeolitic material defining a molecular sieve and having a catalytic material, selected to act adsorptively upon the at least one contaminant, dispersed therein. The device further includes a heatable metallic woven band disposed in laminar relation with the carrier element, the metallic woven band and carrier element being wound spirally end-over-end, whereby exhaust gas flowing into the central cavity from the chamber inlet passes through the woven bands and the at least one contaminant is removed therefrom. A plurality of disk elements may be stacked and positioned within a cylindrical housing a having perforated sidewall, an inlet end, and a sealed end. Exhaust gas flows through the inlet and passes through the central cavities of the disk structures, the woven bands making up the disk structures, and perforated sidewall of the housing, respectively for subsequent flow through the chamber outlet. Adjacent pairs of disk elements may be wired in series in a star configuration to respective phases of a three-phase system.

REFERENCES:
patent: 3811845 (1974-05-01), Nakamura
patent: 3843561 (1974-10-01), Sobel
patent: 4233494 (1980-11-01), Pawlik et al.
patent: 4661329 (1987-04-01), Suzuki et al.
patent: 5141714 (1992-08-01), Obuchi et al.
patent: 5232671 (1993-08-01), Brunson et al.
patent: 5348922 (1994-09-01), Kuma

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