Patent ID: 6221259
Filing Date: 2001-04-24
Classification: B01D,C02F,Y10S

Abstract:
A process for the photocatalytic oxidative destruction of contaminants from an oxygen containing fluid stream which comprises:providing a photocatalyst comprising titanium in an amount of between about 0.001 wt % to about 2.0 wt %, zirconium in an amount of between about 0.001 wt % to about 2.0 wt %, and silica; andpassing said oxygen containing fluid stream over said photocatalyst while irradiating the photocatalyst with ultraviolet light of wave length less than or equal to about 400 nanometers to destroy said contaminants, wherein the amount of oxygen in the oxygen containing fluid stream is sufficient to substantially oxidize said contaminants.