2-4mm干燥剂分子筛 可出口

联系方式

公司名称：承德万洋活性炭厂

公司地址：承德县下板城工业区

联系人：陈经理

联系电话：17093298806

分子筛简介

      分子筛是一种包含有精确和单一的微小孔洞的材料，可用于吸附气体或液体。足够小的分子可以通过孔道被吸附，而更大的分子则不能。与一个普通筛子不同的是它在分子水平上进行操作。例如，一个水分子小到可以通过但比它大一点的分子就不行。因此，分子筛常常用来作干燥剂。一个分子筛能吸附高达其自身重量22%的水分。通常分子筛由铝硅酸盐矿组成，也有合成的混合物或化合物。这些化合物具有开放结构使得小分子能够扩散，如:粘土，多孔玻璃，微孔木炭，活性炭等。分子筛常被应用到石油工业，特别是用来纯化气体。例如可用硅胶吸附天然气中的汞对铝制管道和其他液化设备的腐蚀。

分子筛分类

      A型：钾A(3A)，钠A(4A)，钙A(5A)；X型：钙X(10X)，钠X(13X)；Y型：钠Y，钙Y。

      A型：主要成份是硅铝酸盐，孔径为4A（1A=10 -10米），称为4A（又称纳A型）分子筛；用Ca2+交流4A分子筛中的Na+，形成5A的孔径，即为5A（又称钙A型）分子筛；用K+交换4A分子筛的Na+，形成3A的孔径，即为3A（又称钾A型）分子筛。3A、4A、5A分子筛是以分子孔径的大小来作区分的，以此特性的不同来应用于不同的设备。

      3A分子筛的孔径是3A，主要用于吸附水，不吸附直径大于3A的任何分子，根据工业上的应用特点，分子筛具有快吸附速度、再生次数、抗碎强度及抗污染能力，提高了分子筛的利用效率并延长了分子筛的使用寿命，是石油、化工行业中气液相深度干燥、精炼、聚合所必需的干燥剂。

      4A分子筛的孔径为4A，吸附水，甲醇、乙醇、硫化氢、、二氧化碳、乙烯、丙烯，不吸附直径大于4A的任何分子(包括丙烷)，对水的选择吸附性能高于任何其他分子，是工业上用量较大的分子筛品种之一。

      5A分子筛的孔径为5A，能吸附小于该孔径的任何分子，主要应用于正异构烃分离、变压吸附分离及水和二氧化碳的共吸附，基于5A分子筛的工业应用特点，我们生产的5A分子筛选择吸附高、吸附速度快、特别适用于变压吸附，可适应各种大小的制氧、制氢、制二氧化碳等气体变压吸附装置，是变压吸附行业中的较佳选择。

      X型：硅铝酸盐的晶体结构不同（硅铝比大小不同样），形成孔径为9�D10A的分子筛晶体，称为13X（又称钠X型）分子筛；用Ca2+交换13X分子筛中的Na+，形成孔径为9A的分子筛晶体，称为10X（又称钙X型）分子筛

      Y型：Y型分子筛具备X型分子筛烃似的晶体构造，但化学组成不同（硅铝比拟大）通常用于催化范畴。

分子筛生产工艺

      分子筛生产方法：有水热合成、水热转化和离子交换等法。

      1.水热合成法: 用于制取纯度较高的产品，以及合成自然界中不存在的分子筛。将含硅化合物（水玻璃、硅溶胶等）、含铝化合物（水合氧化铝、铝盐等）、碱（氢氧化钠、氢氧化钾等）和水按适当比例混合，在热压釜中加热一定时间，即析出分子筛晶体。

      2.水热转化法:在过量碱存在时，使固态铝硅酸盐水热转化成分子筛。所用原料有高岭土、膨润土、硅藻土等，也可用合成的硅铝凝胶颗粒。此法成本低，但产品纯度不及水热合成法。

      3.离子交换法:通常在水溶液中将Na－分子筛转变为含有所需阳离子的分子筛。

 分子筛理化指标

性能	单位	技术指标
形状		条形		球形
直径	mm	1.5-1.7	3.0-3.3	1.7-2.5	3.0-5.0
粒度合格率	%	≥98	≥98	≥96	≥96
堆积密度	g/ml	≥0.66	≥0.66	≥0.66	≥0.66
磨耗率	%	≤0.20	≤0.40	≤0.20	≤0.20
抗压强度	N	≥30/cm	≥45/cm	≥30/p	≥70/p
静态水吸附	%	≥20.5	≥20.5	≥21	≥21
甲醛吸附	%	≥15	≥15	≥15	≥15
包装水含量	%	≤1.5	≤1.5	≤1.5	≤1.5

 

分子筛用途

      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（一）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混合物的气体）。

      3、脱除气体物质可用减压脱除法再生。

英文翻译

Contact information:Company Name: Chengde Wanyang Activated Carbon FactoryAddress: Chengde County xiabancheng Industrial ZoneContact: Chen ManageTel: 17093298806Introduction of molecular sieve

Molecular sieve is a kind of contains a precise tiny holes and the single material, can be used for the adsorption of gas or liquid.Small enough molecules can be adsorbed by channel, while larger molecules can't.Unlike an ordinary sieve it operate at the molecular level.For example, a water molecule is small enough to pass but bigger molecules than it doesn't (work well).Therefore, the molecular sieve commonly used as a desiccant.A molecular sieve can absorb as much as 22% of its own weight of water.Usually molecular sieve is composed of aluminum silicate salt mine, also have a mixture of synthetic or compounds.These compounds with open structure allows the small molecules to spread, such as clay, porous glass, porous charcoal, activated carbon, etc.Molecular sieves are often applied to the oil industry, especially used for purification of gases.For example available silica gel adsorption gas mercury in corrosion of aluminum pipe and other liquid equipment.Molecular sieve classificationType A: potassium A (aaa), sodium (4 A), calcium (5 A), AX: calcium (10 X X), sodium (13) X X;Y Y Y type: sodium, calcium.Type A: ingredient is silicon aluminate, aperture for 4 A (1 A = 10-10 meters), known as the 4 A molecular sieve (also called type A);Communicate in Ca2 + Na + of 4 A molecular sieve, the formation of the pore diameter of 5 A, which is 5 A molecular sieve (also known as calcium type A);Exchange with K + Na + 4 A zeolite, form 3 A aperture, is 3 A molecular sieve (also known as potassium type A).3 a, 4 a, 5 a molecular sieve is based on molecular aperture size to distinguish, in applied to different characteristics of different equipment.3 a molecular sieve pore size is 3 a, mainly used for the adsorption of water, not any molecular adsorption diameter greater than 3 a, according to the industrial characteristics of application of molecular sieve has a fast adsorption speed, number of regeneration, crushing strength and ability to resist pollution, improve the utilization efficiency of the molecular sieve and prolong the service life of molecular sieve, dry gas liquid phase depth is petroleum, chemical industry, refining, necessary of desiccant polymerization.Aperture for 4 a, 4 a zeolite adsorption of water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, propylene, not any molecular adsorption diameter greater than 4 a (propane), the selection of water adsorption performance than any other molecules, one of the largest varieties of molecular sieve is industrial use.5 a molecular sieve pore size for 5 a, can adsorption is less than the diameter of any molecule, is mainly used in heterogeneous hydrocarbon separation, pressure swing adsorption, adsorption separation and water and carbon dioxide, based on the industrial application characteristics of 5 a molecular sieve, we in the production of 5 a molecular sieve choose high adsorption, adsorption speed, especially suitable for the pressure swing adsorption, can adapt to all kinds of size of oxygen, hydrogen, carbon dioxide and other gases pressure swing adsorption device, is the best choice in industry pressure swing adsorption ().X: silicon aluminate crystal structure of different size (si/al ratio is not the same), the formation of aperture for 9-10 a molecular sieve crystal, known as molecular sieve 13 X (X) is also called sodium;Exchange with Ca2 + Na + in the 13 X molecular sieve, formation aperture for 9 a zeolite crystals, called 10 X (also known as calcium X) molecular sieveY: Y type molecular sieves with X type molecular sieve hydrocarbon crystal structure, chemical composition but different (silicon aluminum compare) is usually used in catalytic category.Molecular sieve production processMolecular sieve production method, hydrothermal synthesis, hydrothermal transformation and ion exchange method, etc.1. The hydrothermal synthesis method: used for preparing high purity of the product, does not exist in nature, and synthesis of molecular sieves.The compounds containing silicon (sodium silicate, silica sol, etc.), aluminum compounds (hydrated alumina, aluminum salts, etc.), alkali (sodium hydroxide, potassium hydroxide, etc.), and water is mixed in certain proportion, heating a certain time in the hot kettle, namely precipitation zeolite crystals.2. Hydrothermal process: the excessive alkali, solid aluminium silicate heat water into molecular sieve.Materials such as kaolin, bentonite, diatomite, also can use synthetic silica alumina gel particles.This method of low cost, but the product purity than hydrothermal synthesis method.3. The ion exchange method: usually Na - molecular sieve in aqueous solution into molecular sieve containing the cation.

Molecular sieve purposes1, 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 (a), 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.

产品图片

联系方式

公司名称：承德万洋活性炭厂

公司地址：承德县下板城工业区

联系人：陈经理

联系电话：17093298806

Contact information:

Company Name: Chengde Wanyang Activated Carbon FactoryAddress: Chengde County xiabancheng Industrial ZoneContact: Chen ManageTel: 17093298806 

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