Patent ID: 7485169
Filing Date: 2009-02-03
Classification: B01D,C23C,Y10S

Abstract:
1. A process facility requiring use therein of air exhaust for its operation, such facility including a processing tool generating heat and contaminants in said operation, and an air exhaust recirculation system arranged to flow air exhaust so that it captures at least a portion of said heat and contaminants generated by the processing tool, said air exhaust recirculation system comprising an air exhaust treatment apparatus adapted to (i) thermally condition the air exhaust and recover heat therefrom, and (ii) reduce contaminants of the air exhaust to a level safe for breathing exposure in the process facility, and the air exhaust recirculation system being adapted to recirculate the air exhaust, after thermal conditioning and contaminant reduction thereof, to cool other apparatus or structure in the process facility.