Gas turbine single plant modifying method, a catalyst...

Details Gas turbine single plant modifying method, a catalyst... Gas turbine single plant modifying method, a catalyst...

2008-01-08

2008-01-08

Nguyen, Cam N. (Department: 1754)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S020000, C502S309000, C502S350000, C502S353000, C502S022000

Reexamination Certificate

active

07316988

ABSTRACT:
A high temperature denitration catalyst of a gas turbine single plant contains TiO2, at least one of WO3and MoO3and V2O5of 0.5 wt % or less, preferably 0.2 wt % or less, or none of V2O5, and is optimized to be used in a temperature range up to a maximum 450 to 600° C. The used high temperature denitration catalyst is immersed into a V-containing water solution and dried and/or burned. An intermediate temperature denitration catalyst is produced containing a V2O5component of 0.5 wt % or more, preferably 1.0 wt % or more, and is optimized for use in a temperature range of 250 to 450° C. This intermediate temperature denitration catalyst is re-used in a combined cycle plant after being modified or in other plants.

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