Molecular sieve characteristics

Molecular sieve strong moisture absorption capacity for the purification of the gas processing and preservation should avoid direct exposure to the air. Before the use of the longer storage time of the molecular sieve and has absorbent undergoing regeneration. Zeolite avoid oil and liquid water. Should be used to avoid contact with oil and liquid water. The industrial production in the drying process the gas, air, hydrogen, oxygen, nitrogen, argon, etc., a work with two adsorption dryers parallel, while another can only be regenerated. Interchangeably and regeneration to ensure continuous operation of the equipment. The dryer at 8-12 ℃ working under warmed to 350 ° C under gassing regeneration. Different specifications of the zeolite regeneration temperature is slightly different. Molecular sieve has a good catalyst for some organic vapor phase reaction.

Also known as zeolite or zeolite is a crystalline aluminum silicate, its crystal structure has a regular and uniform bore, pore diameter of the molecular size of the order of magnitude, which allows only the diameter of a small pore size than the molecules to enter and therefore canthe molecules in the mixture by size sieving. So called molecular sieves. As early as 200 years ago, B. Cron tter first name aluminosilicate zeolite, the chemical composition of the formula where M n is the metal ion and its valence; x silica the number of molecules; Y is water molecules; p is the number of aluminum atoms; q is the number of silicon atoms. Molecular sieve, in the chemical industry as the solid adsorbent, the substance may be adsorbed to desorption, the molecular sieve can be regenerated after use. Also used for drying, purification, separation and recovery of the gas and liquid. Began in the 1960s, as a cracking catalyst in the petroleum refining industry, has developed a variety of zeolite catalysts for different catalytic process.