Patent ID: 6726746
Filing Date: 2004-04-27
Classification: B01D,B01J

Abstract:
A method for removing a first sorbate and a second sorbate from a sorbent, the first sorbate in combination with the sorbent having a first desorption activation energy and the second sorbate combination with the sorbent having a second desorption activation energy higher than the first desorption activation energy, the method comprising the steps of:contacting the first sorbate, the second sorbate, and the sorbent in a first stage with a stripping fluid having a first temperature sufficient to separate and release a portion of the first sorbate in a vapor phase from the second sorbate and the sorbent; combusting the first sorbate; heating the second sorbate and the sorbent to a second temperature higher than the first temperature to separate at least a portion of the second sorbate in a vapor phase from the sorbent; condensing the second sorbate to change the second sorbate from the vapor phase to the liquid phase; and selling the condensed second sorbate to offset the costs of the process.