Abstract: An apparatus and method to dehumidify and reheat an air stream utilizing a combination of conventional direct expansion cooling and a high capacity desiccant dehumidification rotor. Apparatus and method is configured to achieve optimum moisture removal without overcooling at minimum energy consumption. More particularly, the invention relates to an improved method of combining conventional refrigeration with desiccant dehumidification utilizing a single air stream for efficient dehumidification without the need for secondary air streams or overcooling. Moisture is removed as condensed liquid as typical of refrigeration processes however further dehumidification occurs as a result of adsorption by the desiccant dehumidification portion. Heating of the air stream with available condenser heat prevents overcooling the air. This invention combines the two technologies in a higher capacity, more efficient approach than previous methods.

Abstract: An apparatus for removing moisture from an air or gas stream by adsorption is disclosed. More particularly, the invention relates to an improved seal and method for removing the seal and an improved L-, V-, or pie-shaped duct that promotes laminar flow (viz. not turbulent) of a moisture- or solvent-laden stream within the rotary adsorption apparatus. This, in turn, reduces the amount of insulation needed as well as isolates the heated duct from the exterior surfaces. The method allows for simplified maintenance of the rotary adsorption apparatus in comparison with conventional seals, which are typically riveted, screwed, or mechanically attached to an adsorption apparatus.