Purpose of the development: Desiccation of Gases Low humidity of desiccated gas (Dew point is -50 °С) High dynamic capacity (0,25 - 0,40 g water/g sorbent) of a sorbent provides long operation cycle Mild regeneration conditions (100 - 120 °С, no evacuation) Loss of sorbent capacity is not higher than 2,0 % after 500 operation cycles Heat-Protective Coatings, Layers and Materials Solid coatings and elastic layers 2 - 20 mm thick slowing down heat penetration to the protected surface (with effective thermal conductivity of 10 - 15 mW m-1 K-1). Freonless Refrigerators Possibility to design autonomous freonless cooling containers (Т=2ё7оС) using solar energy as a heat source (with cooling COP = 0,6 - 0,7). Regeneration of Heat and Moisture in Domestic Ventilation Systems High dynamic capacity of the sorbent permits a controlled moisture exchange between inlet and outlet air flows (with the regeneration degree up to 90 - 95%) Production of Fresh Water in Arid Regions High sorption capacity allows the recovery of low concentrated water vapour from atmosphere at night A 1-ton sorbent loading produces up to 0,5 ton of water per 24-hours Water can be recovered by autonomous on-shore or off-shore devices using only solar energy

Recommended application field: Different industries of national economy.

Technical characteristic: Static sorption capacity up to 1 g H2O per 1 g of dry SWS. Dynamic sorption capacity up to 0.40 g H2O per1 g of dry SWS. Mechanical strength up to 5 MPa Regeneration temperature 100 - 120 °С (no evacuation).

Advantages over analogues: Compared to the standard commercial desiccants, the selective water sorbents Exhibit higher sorption capacity (2-3-fold) Can be easily regenerated Possess high specific energy storage ability (up to 3 kJ/g).

The development stage readiness: Introduced in production

Description of the development:
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Selective water sorbents (SWS) consist of a porous matrix and hygroscopic substance. At present, SWS can be synthesized using porous matrices such as silica gel, alumina, clays, porous carbons, etc. and different inorganic halides as LiBr, CaCl2, LiCl, and MgCl2. The selective water sorbents and their applications are protected by the Russian Patents No 2042695 (1995), No 2101423 (1996), No 2133147 (1999), No 2142596 (1999), No 2169606 (1999), the US Patent No 5585174 (1996), the Germany Patents DE 19734924 C1 (1998), DE 19734887 (1998), DE 19840990 C1 (1999), DE 19855475 A1 (1999).

Information about newness of the development:
there are Ukrainian patents -- 3 items
there are patents of other countries -- 2 items

Possibility of transfer abroad:
Licence's sale
Creation of joint enterprise
Realization of finished commodity

Photo

Country Russia

For additional information turn to:
E-mail: gal@uintei.kiev.ua