Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Patent
1994-08-17
1996-01-02
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
422177, 422191, 422181, 422193, 422195, 422192, 422198, 422239, 423532, 423533, B01D 5000
Patent
active
054806208
ABSTRACT:
A catalytic converter for converting sulfur dioxide to sulfur trioxide comprising an exterior shell of a heat resistant weldable metal; foundations from which the shell vertically extends; an interior tube of same metal vertically disposed within the shell and defining a passage; the interior tube having i. a first inlet aperture through which the passage receives a first portion of a sulfur dioxide-containing gas from a source of such gas; ii. a second inlet aperture through which the passage receives a second portion of the sulfur dioxide-containing gas; and iii. an outlet aperture; at least one catalyst bed including an annular bed extending fully between the shell and the interior tube; wherein the annular bed is in direct gaseous communication within the shell with the first passage through the outlet aperture; a plurality of axial heat exchange tubes within the interior tube for conducting hot sulfur trioxide-containing gas from the catalyst bed through the heat exchange tubes to effect heat transfer with and to heat the first and second portions of the sulfur dioxide-containing gas and to cool the hot sulfur-trioxide containing gas; structure for directing the hot sulfur trioxide-containing gas to the heat exchange tubes, and for directing the heated first and second portions of the sulfur-dioxide containing gas through the outlet aperture to the annular bed. The converter offers improved thermal efficiencies and compactness.
REFERENCES:
patent: 4205044 (1980-05-01), Gramatica
patent: 4335076 (1982-06-01), McFarland
patent: 5232670 (1993-08-01), Cameron
patent: 5302353 (1994-04-01), Cameron
Tran Hien
Warden Robert J.
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