3A分子筛，又称3A沸石分子筛，是一种碱金属硅铝酸盐，化学式为2/3K₂O·1/3Na₂O·Al₂O₃·2SiO₂·9/2H₂O。其有效孔径为3Å（0.3纳米），专用于吸附直径小于3Å的水分子，能排斥乙烷等大分子物质 。
该分子筛具有快速吸附、高抗碎强度和抗污染等特性，静态水吸附率≥20wt%，抗压强度≥70N/颗，广泛应用于石油裂解气（乙烯、丙烯）、天然气、液态乙醇及制冷剂的深度干燥，可将气体含水量降至1ppm以下（露点＜-70℃）。它还可通过200-350℃热气体再生重复使用，寿命达7-10年 。
储存时需保持常温、湿度≤90%的密闭环境，避免接触水、酸、碱及有机物。产品规格包含粒径3-5mm或1.6-2.5mm，采用密封钢桶包装
浩瀚色谱（山东）应用技术开发有限公司，研制的《3A分子筛填充色谱柱应用安捷伦7890》，安装在岛津，安捷伦，赛默飞，瓦里安，布鲁克，PE上使用取得了不错的效果。
名称：3A分子筛填充柱
规格：2m*3mm,0.2-0.25mm
zui高使用温度：320°C
适用于：
安捷伦490在线/便携，4890,5890,6890,7820,7890,8860,8890
岛津GC-14C，GC-2010，GC-2014，GC-2030
赛默飞1310,1300,1610,1600
瓦里安3800系列
布鲁克PE580,590,680,690
磐诺A90，福立GC9790，华爱，天瑞，天美，GC7900，川仪，北分瑞利，东西电子，鲁南瑞虹，捷岛/科晓
3A molecular sieve, also known as 3A zeolite molecular sieve, is an alkali metal aluminosilicate with a chemical formula of 2/3K ₂ O · 1/3Na ₂ O · Al ₂ O ∝· 2SiO ₂ · 9/2H ₂ O. Its effective pore size is 3 Å (0.3 nanometers), specifically designed to adsorb water molecules with a diameter less than 3 Å, and can repel large molecules such as ethane.
This molecular sieve has the characteristics of rapid adsorption, high crush strength, and pollution resistance. Its static water adsorption rate is ≥ 20wt% and compressive strength is ≥ 70N/particle. It is widely used in the deep drying of petroleum cracking gas (ethylene, propylene), natural gas, liquid ethanol, and refrigerants, and can reduce the gas moisture content to below 1ppm (dew point<-70 ℃). It can also be regenerated and reused through hot gas at 200-350 ℃, with a lifespan of 7-10 years.
When storing, it is necessary to maintain a sealed environment at room temperature and humidity ≤ 90%, avoiding contact with water, acid, alkali, and organic matter. The product specifications include particle sizes of 3-5mm or 1.6-2.5mm, packaged in sealed steel drums
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed the "3A Molecular Sieve Filled Chromatography Column Application Agilent 7890", which has been installed on Shimadzu, Agilent, Thermo Fisher, Varian, Bruker, and PE and has achieved good results.
Name: 3A molecular sieve packed column
Specification: 2m * 3mm, 0.2-0.25mm
Maximum operating temperature: 320 ° C
Suitable for:
Agilent 490 online/portable, 48905890689088608890
Shimadzu GC-14C, GC-2010, GC-2014, GC-2030
Thermo Fisher Scientific 1310130016101600
Varian 3800 Series
Brooke PE580590680690
Panno A90, Fuli GC9790, Huaai, Tianrui, Tianmei, GC7900， Chuanyi, Beifen Ruili, Dongxi Electronics, Lunan Ruihong, Jiedao/Kexiao
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