Gas separation: apparatus – Apparatus for selective diffusion of gases – Plural separate barriers
Reexamination Certificate
2005-05-03
2005-05-03
Spitzer, Robert H. (Department: 1724)
Gas separation: apparatus
Apparatus for selective diffusion of gases
Plural separate barriers
C095S052000, C096S010000, C096S118000
Reexamination Certificate
active
06887303
ABSTRACT:
A device for continuously humidifying and dehumidifying feed air for a manufacturing process or a ventilation and air conditioning installation includes a membrane contactor having a membrane, the feed air being passed along one side of the membrane and a hygroscopic liquid being passed along another side of the membrane. A regenerator is provided for lowering the water content of the hygroscopic liquid. A metering device is provided for adding water to increase the water content of the hygroscopic liquid. A control device is connected to the metering device and to the regenerator, the control device being configured to control the water content of the hygroscopic liquid and enable a switching between humidification and dehumidification of the feed air as a function of the water vapor partial pressure difference between the feed air and the hygroscopic liquid. A heat exchanger is provided to cool the hygroscopic liquid as the hygroscopic liquid moves from the regenerator to the membrane contactor and at the same time to heat the hygroscopic liquid as the hygroscopic liquid moves from the membrane contactor to the regenerator.
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Hesse Thomas
Rapp Kurt
Wagner Burkhard
Daimler-Chrysler AG
Davidson Davidson & Kappel LLC
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