Patent ID: 6348088
Filing Date: 2002-02-19
Classification: B01D

Abstract:
A system for recovering cooling capacity from a factory exhaust gas comprising:a scrubber having an inlet for receiving an exhaust gas from a process chamber and an outlet for outputting scrubbed exhaust gas at a first temperature, said first temperature not higher than about 22Â° C., a heat exchanger for receiving said scrubbed exhaust gas at said first temperature and outputting a heated, scrubbed exhaust gas at a second temperature at least 5Â° C. higher than said first temperature by absorbing thermal energy from said heat transfer medium of said cooling tower, a cooling tower, and a condenser in fluid communication with said cooling tower through a first and a second conduit, said cooling tower further comprises a third conduit for outputting a heat transfer medium at a third temperature to a heat exchanger and a fourth conduit for inputting said heat transfer medium at a fourth temperature from said heat exchanger, said fourth temperature being generally lower than said third temperature.