US Patent 7993615 Integrated flue gas dehumidification and wet cooling tower system

A method and system for dehumidifying flue gas from a flue gas generating. Water is supplied from a cooling tower to a heat exchanger in the liquid in the lower end of a wet flue gas processor for cooling the liquid in the lower end of the wet flue gas processor to condense water from the flue gas into the liquid in the wet flue gas processor. Returning water from the heat exchanger to the cooling tower cools the water and the liquid with the condensed water is supplied from the wet flue gas processor to the cooling tower as make-up water for the cooling tower to reduce or eliminate the need for fresh make-up water.