Abstract:

This paper reviews the current research of water extraction from air. The progress and future trends of different absorbents for absorption of water from air，including solid，liquid，composite water absorbents and other new absorbing water technologies are discussed. The energy utilization patterns for two major methods of water extraction from air，condensation method and absorption/desorption method are summarized and compared. Forecast of water extraction from air is presented on the basis of absorption /desorption method and reasonable use of solar energy or waste heat.