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Strong ability of molecular sieve hygroscopic


Strong ability of molecular sieve hygroscopic, used for gas purification processing, preservation should avoid direct exposure to the air. Stored for a long time and has moisture absorption
Molecular sieve of molecular sieve before use should be recycled. Molecular sieve avoid oil and liquid water. When using, should try to avoid contact with oil and water. Industrial production in the drying process of gas, air, hydrogen, oxygen, nitrogen, argon, etc. With two adsorption dryer in parallel, a job, while the other can be regenerated. Alternating work and regeneration, to ensure the equipment run continuously. Work under the dryer at 8 and 12 ℃, ChongQi regeneration under heated to 350 ℃. Different specifications of the molecular sieve regeneration temperature is slightly different. Molecular sieve for some organic gas phase reaction has good catalytic effect. Is also called the zeolite or zeolite is a kind of crystal type of aluminum silicate, the crystal structure of neat and uniform pore size of molecular size.
Molecular level, it only allows molecules into the smaller than the aperture diameter, therefore the size of the molecules in the mixture to the screening. According to molecular sieve. As early as 200 years ago, b. g dragon, he named the first aluminum silicate zeolite, chemical composition is given for the type of M and n are metal ions and the valence; X is the silica on the number of molecules; Y is the number of molecules of water; P is the atomic number of aluminum; Qq number of atoms of silicon. Molecular sieves in chemical industry as a solid adsorbent, by adsorption material can desorption, molecular sieve can be recycled after use. Also used in dry gas and liquid, purification, separation and recovery. In the 1960 s, used as cracking catalysts in the petroleum refining industry, has now developed a variety of suitable for different molecular sieve catalysts for catalytic process.