Patent ID: 6156102
Filing Date: 2000-12-05
Classification: B01D,F24F

Abstract:
A regenerative process for separating water from air comprising:(a) providing a hygroscopic solution comprising a solute in an initial concentration;(b) contacting the hygroscopic solution with air containing water to obtain a water rich hygroscopic solution having a concentration of solute less than the initial concentration and a water lean air stream;(c) separating the water lean air stream from the water rich hygroscopic solution;(d) releasing the water lean air stream to the atmosphere; and,(e) vapourizing water in the water rich hygroscopic solution to obtain water vapour and the hygroscopic solution and subsequently condensing the water vapour wherein the water rich hygroscopic solution is heated at least in part by the heat of condensation which is liberated by the condensation of the water vapour.