Exhaust gas treating device

Combustion – Fuel disperser installed in furnace – Plural feed means extending to common wall opening of furnace

Reexamination Certificate

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Details

C431S182000, C431S122000, C110S213000, C110S214000

Reexamination Certificate

active

06969250

ABSTRACT:
A waste gas treatment system having a burner part and a combustion chamber provided at a downstream side of the burner part. Combustion flames are formed from the burner part toward the combustion chamber, and a waste gas is introduced into the combustion flames, thereby oxidatively decomposing the waste gas. The combustion chamber is formed from an inner wall made of a fiber-reinforced ceramic material. Therefore, the wear of the inner wall due to heat and corrosion is minimized, and thermal stress cracking is also reduced. Consequently, the lifetime of the system increases, and the cost of equipment and the availability factor can be improved. In addition, because the inner wall exhibits no catalytic effect, the formation of thermal NOx is suppressed, and it is possible to achieve environmental preservation and to simplify the treatment equipment.

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Copending U.S. Appl. No. 09/509,995, filed Apr. 5, 2000, entitled “Combustor for Waste Gas Treatment”.
Copending U.S. Patent Application based on PCT/JP99/06632, U.S. Appl. No. 09/857,024, filed May 31, 2001, entitled “Waste Gas Treatment System”.
Copy of International Search Report of PCT/JP99/06631.

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