Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Waste gas purifier
Reexamination Certificate
2006-11-07
2006-11-07
Caldarola, Glenn (Department: 1764)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Waste gas purifier
C422S205000, C422S220000, C422S230000, C376S300000, C376S301000
Reexamination Certificate
active
07132085
ABSTRACT:
In a method for catalytic oxidation of a gas, the outlay required is kept at a low level for reliably treating even relatively large quantities of gas and/or high concentrations of the gas fraction that needs to be treated. For this purpose, a gas stream including the gas being treated is circulated through a reaction zone and a return-flow zone, which is in communication with the inlet and outlet sides of the reaction zone. The circulation of the gas stream can be maintained effectively in the form of a passive system if the gas stream which includes the gas to be treated is guided in the upward direction in the reaction zone and the upward flow is assisted by convection resulting from the heat released during the oxidation reaction. Furthermore, the gas stream is preferably cooled locally in the return-flow zone by spray cooling.
REFERENCES:
patent: 3907981 (1975-09-01), Henrie
patent: 1 442 821 (1968-12-01), None
patent: 2 411 006 (1974-09-01), None
patent: 28 52 019 (1979-06-01), None
patent: 1013888 (1965-12-01), None
Caldarola Glenn
Duong Tom
Framatome ANP GmbH
Green Laurence A.
Locher Ralph E.
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