2015年9月29日星期二

5A molecular sieves and 13X molecular sieves have what characteristics

5A molecular sieve is a calcium aluminosilicate. Uniform pore size of about 5 × 10-7mm, a bulk density of 700 ~ 800kg / m3, a specific surface area of 750 ~ 800m2 / g, a porosity of 47%, the mechanical strength of greater than 95%, the water absorption capacity of about 21.5% of carbon dioxide adsorption capacity of 1.5%, while the adsorption of water, carbon dioxide, acetylene and other hydrocarbons have a total adsorption. 13X molecular sieve is a sodium aluminosilicate, uniform pore size of about 10 × 10-7mm, a bulk density of 600 ~ 700kg / m3, a specific surface area 8001000m2 / g, a porosity of 50%, the mechanical strength of greater than 90%, of moisture adsorption capacity of about 28.5%, carbon dioxide adsorption capacity of 2.5%, while the adsorption of water, carbon dioxide, acetylene and other hydrocarbons also having a total adsorption. Compared two adsorbents, adsorption performance is better than 5A zeolite 13X molecular sieve. However, zeolite 13X somewhat less mechanical strength and abrasion resistance, and the manufacturing process is more complicated, and therefore higher prices.

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