Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – With means applying electromagnetic wave energy or...
Patent
1981-10-13
1983-11-08
Williams, Howard S.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
With means applying electromagnetic wave energy or...
4221863, 2041571R, B01J 1912
Patent
active
044141807
ABSTRACT:
A chlorine dioxide generator and method for generating chlorine dioxide gas from sodium chlorite through the use of photochemical oxidation, the chlorine dioxide generator comprising a base to operatively support an enlarged hollow substantially cylindrical housing having a lid with a centrally disposed aperture formed therein removably disposed on the upper portion thereof; a chlorine dioxide gas generating chamber supported on the base within the enlarged hollow substantially cylindrical enclosure comprising an elongated substantially cylindrical hollow reaction tube having a reduced upper end, a gas conduit member mounted on the upper portion and partially disposed within the elongated substantially cylindrical transparent hollow reaction tube, said gas conduit member being comprised of an innermost hollow inert gas delivery tube coaxially disposed within the substantially cylindrical transparent hollow reaction tube, and an opaque hollow substantially cylindrical shield including a plurality of apertures formed in the lower portion thereof and disposed coaxially between the innermost hollow inert gas delivery tube and the substantially cylindrical transparent hollow reaction tube, thereby forming an inner chlorine dioxide gas discharge portion and an innermost inert gas supply portion, a light source disposed adjacent the chlorine dioxide generating chamber wherein the light source radiates the chlorine dioxide gas generating chamber to photochemically oxidize the sodium chlorite to produce chlorine dioxide in an aqueous phase which is swept into a gas phase by an inert gas from the innermost inert gas supply portion and discharged through the inner chlorine dioxide gas discharge portion.
REFERENCES:
patent: 3429793 (1969-02-01), Hellund
patent: 3790801 (1974-02-01), Coleman
patent: 3993911 (1976-11-01), Graentzel
patent: 4199419 (1980-04-01), Holroyd et al.
Chapman Terryence F.
Fisher III A. W.
Williams Howard S.
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