Patent ID: 6235086
Filing Date: 2001-05-22
Classification: B01D,F24F

Abstract:
A method for dehumidifying air comprising the steps of:(i) contacting a dehumidification element which reversibly absorbs moisture in the air and which is contained in a housing of a dehumidification apparatus, with the air to be dehumidified;(ii) discharging air to the outside of said housing, which air was dehumidified by the contact with said dehumidification element;(iii) regenerating said dehumidification element by contacting said dehumidification element after absorbing the moisture in said air with heated air for regeneration of the dehumidification element so as to remove the moisture from said dehumidification element;(iv) reusing the dehumidification element in the step (i), which was regenerated by the step (iii);(v) cooling the air for regeneration of the dehumidification element after removing moisture from the dehumidification element in the step (iii) so as to condense the moisture, removing the generated water from the air for regeneration of the dehumidification element and collecting the water generated by the condensation of the moisture without allowing air leakage into or from the dehumidification apparatus; and(vi) circulating the air for regeneration of the dehumidification element from the step (v) from which the water generated by condensation of moisture was removed, to the step (iii);said air for regeneration of the dehumidification element is not substantially mixed with the air to be dehumidified or with the dehumidified air.