Catalytic exhaust gas decomposition apparatus and exhaust...

Details Catalytic exhaust gas decomposition apparatus and exhaust... Catalytic exhaust gas decomposition apparatus and exhaust...

2005-11-10

2008-11-11

Duong, Tom (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

Reexamination Certificate

active

07449157

ABSTRACT:
A catalytic exhaust gas decomposition spirals an exhaust gas containing therein a substance to be decomposed and a reactant gas, rectifies the spiral flow, and lets the substance to be decomposed react with the reactant gas after the spiral flow has been rectified. For rectifying the spiral flow of the exhaust gas and the reactant gas, a plate-like baffle wall has therein a through hole at a portion near its center. The spiral flow is allowed to pass through the through hole so as to be centralized temporarily. The spiral flow then passes through an enlarged section of a flow path downstream of the through hole before being introduced into the catalyst bed. The method helps minimize variations in gas velocity of the exhaust gas flowing into the catalyst bed, thereby allowing a desired decomposition rate to be obtained substantially consistently.

REFERENCES:
patent: 3374857 (1968-03-01), Hutchins
patent: 4039294 (1977-08-01), Mayer et al.
patent: 07-185259 (1995-07-01), None

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