Patent ID: 7217313
Filing Date: 2007-05-15
Classification: B01D,F24F

Abstract:
1. A dehumidifying system including a dehumidifying device capable of removing moisture and organic substances from a process gas, wherein the dehumidifying device includes: a holding case, and a rotor rotatably held in the holding case and having a plurality of individual sector portions having a sectorial cross section divided from each other, each bearing adsorbent capable of adsorbing moisture and organic substances; at least an adsorbing zone and a regenerating zone are defined in the holding case holding the rotor by partition plates attached to the holding case, a first supply line for supplying a process gas and a first discharge line for discharging the process gas are connected to the adsorbing zone of the holding case holding the rotor, a second supply line for supplying a regenerating gas and a second discharge line for discharging the regenerating gas are connected to the regenerating zone of the holding case holding the rotor, and moisture and organic substances adsorbed by the adsorbent of the rotor in the adsorbing of the rotor zone of the holding case holding the rotor are eliminated from the adsorbent of the rotor in the regenerating zone with a high-temperature regenerating gas of a temperature between 250 and 400° C., and the adsorbent has aluminosilicate produced by substituting sodium atoms of hydrophilic zeolite by one or some of La, Nd, Ce and Pr.