3A分子筛：
3A分子筛主要用于不饱和烃如石油裂解气、乙烯、丁二烯的干燥；极性液体如、乙醇的干燥、制冷剂的干燥；煤油和航空发动机的深度干燥；氮氢混合气体的干燥。石油化工、真空玻璃等工业用干燥剂。
4A分子筛：
4A分子筛是工业上用量较大的分子筛品种之一，主要用于空气、天然气烷烃、制冷剂等气体和液体的深度干燥；氩气的制取和净化；药品包装、电子元件和易变质物质的静态干燥；油漆、染料、涂料中脱水剂。
5A分子筛：
可以吸附正构烃类和醇类气体。在弱酸介质中具有高的稳定性。可作为石油、化工、天然气及其它工业用气体的干燥和精制。
13X分子筛：
13X分子筛能吸附较大临界直径的分子，主要用于气体的干燥和净化，空气装置原料气的净化，可有效吸附空气中的二氧化碳、水、有机硫化物等物质。
The purpose of the molecular sieve
3 a molecular sieves:
3 a molecular sieve is mainly used in unsaturated hydrocarbons, such as oil cracking gas, ethylene, butadiene dry;Dry polar liquid such as methanol, ethanol, refrigerant drying;Kerosene and the depth of the aeroengine dry;Dry nitrogen hydrogen gas mixture.Petrochemical industry, such as vacuum glass industrial desiccant.
4 a molecular sieves:
4 a molecular sieve is industrial dosage is one of the largest varieties of molecular sieve, mainly used for air, gas, paraffin, the depth of the refrigerant gas and liquid such as dry;The argon gas making and purification,Drugs packaging, electronic components and metamorphic material static and dry;Paint, dye, dehydrating agent in the coating.
5 a molecular sieves:
Adsorption is compose of hydrocarbons and alcohol gas.In weak acid medium with high stability.Can be used as petroleum, chemical, natural gas and other industrial gas dry and refined.
13 x molecular sieves:
13 x molecular sieve adsorption of critical diameter larger molecules, it is mainly used for the drying and purification of the gas, air plant feed gas purification, can effective adsorption materials such as carbon dioxide from the air, water, organic sulfides.
分子筛注意事项
分子筛在使用前应防止吸附水、有机气体或液体，否则，应予以再生。
1、脱除水份：可用干燥气体如氮、空气、氢、饱和碳化氢等加热至150-320℃在0.3-0.5kg/m2压力下通入分子筛床层，持续3-4小时，然后向吸附器通入干燥的冷气体约2-3小时，隔绝空气冷至室温。
2、脱除有机物质：可用水蒸气先将吸附质从分子筛中替代出来后，再加热至1进行，再生也可在200-350℃过热蒸气或过惰性气体通过再生，（不能使用与吸附质接触产生爆炸混合物的气体）。
3、脱除气体物质可用减压脱除法再生。
Molecular sieve
Molecular sieve adsorption water before use to prevent gas or liquid, organic, otherwise, shall be renewable.
1, removing water: available dry gas such as nitrogen, air, hydrogen, saturated hydrocarbon such as heated to 150-320 ℃ under pressure from 0.3 to 0.5 kg/m2 bubbled into molecular sieve bed, last 3-4 hours, and then to the adsorber bubbled into dry cold gas about 2-3 hours, isolated from air cooling to room temperature.
2, removal of organic matter, available water vapor from the molecular sieve adsorption mass substitution first, and then heated to 1, regeneration can also be used in the 200-350 ℃ superheated steam or inert gas through regeneration, (cannot use explosive mixture gases from contact with the adsorbate).
3, removing material available relief gases removal method of regeneration.
