Abstract: Herein is detailed a 3-rotor drying system (30,40,50) for producing technical air having a very low dew point comprising three rotary desiccant dryers (2,21,22), each rotary desiccant dryer (2,21,22) comprising a drying sector (2a,21a,22a) and a regeneration sector (2b,21b,22b), the rotary desiccant dryers (2a,21a) arranged in sequence and sharing a common regeneration-air flow path (9) for passing regeneration-air through the respective regeneration sectors (2a,21b,22b) of the rotary desiccant dryers (2,21,22) and a common intake-air flow path (6,7) for passing intake-air through the respective drying sectors (2a,21a,22a) of the rotary desiccant dryers (2,21,22) for dehumidifying the intake-air to product-air having a very low dew point.

Abstract: The present invention relates to systems for regenerating desiccants wheels using superheated steam and to a dehumidifier comprising a system for regenerating a desiccant wheel using superheated steam. In particular the invention relates to dehumidifier systems and dehumidifiers comprising such dehumidifier systems, the dehumidifier systems each comprising a closed regeneration loop for regenerating a rotary desiccant wheel using superheated steam; and uses of excess superheated steam generated during regeneration.

Abstract: The present invention concerns a method and an arrangement for dehumidifying and desalting interior air in off-shore installations. A simplified arrangement is presented wherein exterior intake air containing water rich in supersaturated and wet salt particles is pretreated with dry and salt free pretreatment air before entering a dehumidifying and de-salting unit from which the intake air exits as desalted and dehumidified exit air. A part of this desalted and dehumidified exit air is then redirected to the intake air flow path to serve as pretreatment air thereby simplifying construction and enhancing the lifetime of the dehumidifying and desalting unit.

Abstract: The present invention concerns a method and an arrangement for dehumidifying and desalting interior air in off-shore installations. A simplified arrangement is presented wherein exterior intake air containing water rich in supersaturated and wet salt particles is pretreated with dry and salt free pretreatment air before entering a dehumidifying and de-salting unit from which the intake air exits as desalted and dehumidified exit air. A part of this desalted and dehumidified exit air is then redirected to the intake air flow path to serve as pretreatment air thereby simplifying construction and enhancing the lifetime of the dehumidifying and desalting unit.

Abstract: The present invention relates to systems for regenerating desiccants wheels using superheated steam and to a dehumidifier comprising a system for regenerating a desiccant wheel using superheated steam. In particular the invention relates to dehumidifier systems and dehumidifiers comprising such dehumidifier systems, the dehumidifier systems each comprising a closed regeneration loop for regenerating a rotary desiccant wheel using superheated steam; and uses of excess superheated steam generated during regeneration.