COMPOSITE DRIER FOR GASES AND LIQUIDS Russian patent published in 2001 - IPC

FIELD: sorbents. SUBSTANCE: matrix of drier is substance with open pore system supporting active moisture-absorbing substance, which is high-hygroscopic substance in the form of pore-filling solution capable of undergoing reversible hydration-dehydration processes. In particular, porous matrices may be inorganic oxides, porous coals, naturally occurring sorbents, porous metals, porous composites, or their mixtures. Moisture-absorbing substance may be selected from alkali and alkali-earth metal halides, sulfates, nitrates, or their mixtures. Porous matrices can have micropores, mesopores, and coarse transport pores. They are prepared in the form of spheres 1-6 mm in diameter or sticks 2-5 mm in diameter and 3- 15 mm in length, or in the form of irregularly shaped particles, rings, or honeycomb-structure blocks. EFFECT: increased drying capacity. 6 cl, 20 ex