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          分子篩的吸附能力

          瀏覽次數:次      更新時間:2021-04-10 21:12:40

          Adsorption capabilities[edit]

          Model Pore diameter (Ångström) Bulk density (g/ml) Adsorbed water (% w/w) Attrition or abrasion, W (% w/w) Usage[14]
          3 0.60–0.68 19–20 0.3–0.6 Desiccation of petroleum cracking gas and alkenes, selective adsorption of H2O in insulated glass (IG) and polyurethane
          4 0.60–0.65 20–21 0.3–0.6 Adsorption of water in sodium aluminosilicate which is FDA approved (see below) used as molecular sieve in medical containers to keep contents dry and as food additive having E-number E-554 (anti-caking agent); Preferred for static dehydration in closed liquid or gas systems, e.g., in packaging of drugs, electric components and perishable chemicals; water scavenging in printing and plastics systems and drying saturated hydrocarbon streams. Adsorbed species include SO2, CO2, H2S, C2H4, C2H6, and C3H6. Generally considered a universal drying agent in polar and nonpolar media;[12] separation of natural gas and alkenes, adsorption of water in non-nitrogen sensitive polyurethane
          5Å-DW 5 0.45–0.50 21–22 0.3–0.6 Degreasing and pour point depression of aviation kerosene and diesel, and alkenes separation
          5Å small oxygen-enriched 5 0.4–0.8 ≥23   Specially designed for medical or healthy oxygen generator[citation needed]
          5 0.60–0.65 20–21 0.3–0.5 Desiccation and purification of air; dehydration and desulfurization of natural gas and liquid petroleum gasoxygen and hydrogen production by pressure swing adsorption process
          10X 8 0.50–0.60 23–24 0.3–0.6 High-efficient sorption, used in desiccation, decarburization, desulfurization of gas and liquids and separation of aromatic hydrocarbon
          13X 10 0.55–0.65 23–24 0.3–0.5 Desiccation, desulfurization and purification of petroleum gas and natural gas
          13X-AS 10 0.55–0.65 23–24 0.3–0.5 Decarburization and desiccation in the air separation industry, separation of nitrogen from oxygen in oxygen concentrators
          Cu-13X 10 0.50–0.60 23–24 0.3–0.5 Sweetening (removal of thiols) of aviation fuel and corresponding liquid hydrocarbons

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