System for recovering water from flue gas

11) A power plant comprising:

• a combustion apparatus producing an exhaust gas;
• an absorber receiving the exhaust gas, the absorber comprising a desiccant and producing a first stream of desiccant solution containing water and a first concentration of desiccant;
• and
• a crystallization circuit receiving the first stream of desiccant solution and producing a second stream of desiccant solution having a second concentration of desiccant greater than the first concentration of desiccant.

17) A power plant comprising:

• a combustion apparatus producing an exhaust gas;
• an absorber receiving the exhaust gas, the absorber comprising a desiccant and producing a first stream of desiccant solution containing water and a first concentration of desiccant;
• a first heat exchanger configured to cool the first stream of desiccant solution while maintaining the water in a liquid phase;
• a subsystem coupled to receive the first stream of desiccant solution from the first heat exchanger, configured (i) to cool and crystallize a portion of the first stream of desiccant solution, (ii) to separate crystallized desiccant from other portions of the first stream of desiccant solution, (iii) to provide a second stream of desiccant solution having a relatively high vapor pressure and a relatively low concentration of desiccant, to the first heat exchanger for further heating, and (iv) to provide a third stream of desiccant solution as an input to the absorber;
• a cooler-condenser unit;
• a flash tank coupled (i) to receive the second stream of desiccant solution having the relatively high vapor pressure from the first heat exchanger, (ii) to flash water present in the second stream into a vapor, (iii) to send the vapor to the cooler-condenser unit for condensing the vapor into water, and (iv) to provide a fourth stream of desiccant solution, having a relatively high concentration of desiccant as another input to the absorber;
• and
• a desiccant cooler positioned between the flash tank and the absorber to receive the fourth stream of desiccant solution and cool the fourth stream of desiccant solution prior to input of the fourth stream of desiccant solution prior to input to the absorber.