Effective Way to Remove Water through Desiccant Molecular Sieves

The most effective way to remove water is to run the solvent slowly through a column of the molecular sieves but, usually to remove most water; dried sieves are just positioned into the bulk solvent container (about 5%-10% by volume). Molecular sieves are available in market in the form of beads, pellets & powder.

They have a long list of advantages including of - their consistently high adsorption speed. They offer higher contamination resistance. They also have stronger crushing strength. Their increasing cyclic times which provide an extended product life are also an added advantage.

Typical application areas are: cracked gas drying, drying of highly polar compounds, such as methanol and ethanol, drying of unsaturated hydrocarbons, drying of liquid alcohol, drying of refrigerants, static, (non-regenerative) dehydration of insulating glass units. 3a molecular sieve can absorb unintended moisture, so put them in an air tight container until ready for use to avoid adsorption.

Molecular Sieve 3A Ethanol for Drying

 Molecular sieve 3a is an alkali metal alumina-silicate. It is of type 3A that means it is the potassium form of the type a crystal structure; it contains the effective pore opening of about 3 angstroms (0.3nm). This opening is large enough to allow the moisture inside it, but excludes molecules such as unsaturated hydrocarbons (unsaturated hydrocarbons can potentially form polymers) and this maximizes lifetime when dehydrating such molecules.

These molecular sieves are typically zeolite compounds, these compounds effectively adsorb water and have carefully controlled pore sizes. Both the solvent and the water will adsorb strongly to the molecular sieve surfaces. Smaller water molecules get access to the large surface area within the pores, so that they are successfully removed from the solvent. We can see from the table mentioned below that the water (1.93A) will enter the 3A pore size while acetone (3.08A) will mostly be excluded. Water will occupy the large surface area inside the pores and therefore be removed.  But if the solvent also enter the pores, it would struggle with water for the surface area and the removal of water becomes impossible. So Type 3A molecular sieve is effectively suitable for drying ethanol, methanol, or acetone. But type 4A sieve can fail to do the same since the pore size does not exclude these solvents.

Molecular Sieve 5a Desiccant use to remove Natural Gas

There are various types of desiccant used nowadays. It depends on the requirement and the situation that which type of desiccant has to be used. Among all the most popular type of desiccant is silica gel then come Molecular sieves. It is not possible to use the best desiccant all the times. It depends on the situation that which desiccant suites the best. 

Taking more about their structure they are mostly manufactured in A and X type crystalline structure. Molecular sieve for water removal can be the best application for which this desiccant can be used. One difference between these molecular sieves and silica gel is that silica gel is an indicating type desiccant but at the same time molecular sieves are differentiated on the basis of its molecular size that is 3A, 4A, 5A and 13X. Bigger the molecular size will be better will be its absorption capacity. Also, it cannot absorb those elements bigger than the size of these molecular sieves size. Many of the industrialists use only this desiccant but if required you can also use this desiccant in combination with other desiccant like activated carbon so that you can get rid of moisture and odor all at the same time.

Molecular Sieve 3A best use for Water Removal

When it comes at preserving their precious products, industrialists want to use the best method to get rid of such problem which can cause a major damage to them. Among the problems, moisture problem is the major one. Even a drop of moisture droplet can become a reason enough to demolish huge machinery. So, in order to get rid of moisture, effective moisture controlling technique is used that is desiccant. These desiccants absorb moisture and lock them inside and help to make the environment moisture free.

Considering molecular sieves desiccant exclusively it is used in various industries like oil and gas, petrochemicals, sugar and air Industries as well. In these industries they are used to perform various purposes like removal of water from various places and moisture removal as well. It is also used for drying natural as well as industrial gas drying. So basically we can say these desiccants are best for the protection against moisture and water. Although the manufacturers can give various different shape to the desiccant but they only choose to give beads and pellets shape because in this form the surface area for absorption increases. So, it can not only make the environment dry quickly but locks them inside.

Molecular Sieve Desiccant Packets for Formulation

Whenever it comes to protection against moisture, the first thing which comes in everyone’s mind is desiccants. Now desiccants are also of various types. Among all the most popular and the best is silica gel and molecular sieves beads. Although these desiccants are not much toxic unless it is consumed. But still some precautionary measures are taken and thus they comes sealed pack in breathing packets. Once these desiccants absorb moisture it locks them inside and makes the environment moisture free.

These molecular sieves beads are mostly used in pharmaceutical industries. As they help us to retain the originality of the product. Apart from this they are used in various other fields like food electronics, textile, stationary, leather and packaging industry. Whenever you buy any leather product, you must have seen a small packet with a do not eat tag and wondered what its use here is. It is very important at its own place. It not only controls moisture but also controls Odors. Many of the times these desiccants are used in breathers as well. That is because big machines perspire huge amount of moisture in the process of sudden cooling and heating. So, even a drop of moisture can be devastating. So apart from preventing the products from spoilage and fungus, bacterial growth it increases the life of machineries. As by using this product machines does not catch rust easily and thus increases its life. Desiccants have given a completely new phase to the food and packaging industry.

Elements of Ethanol Dehydration Process using 3A Molecular Sieves

Ethanol Drying is basically a process for removing water molecules or something equivalent to water molecules from any substance. Ethanol is drying to obtain ethylene and water when it is heated with catalyst of concentrated sulfuric acid. The ethane gas produced is collected over water and tests are done. This is to find out the typical properties possessed by the unsaturated hydrocarbon. For the dehydration of ethanol one likely product is ethane. In industry this term basically means removing water or moisture from the solution of ethanol which is a result of fragmentation. However, one of the most important dehydration is the dehydration of alcohol from phenyl ethanol.

In the process of ethanol dehydration using molecular sieves 3A Zeolite molecular sieves is used to absorb the water content from ethanol. This absorbent is crystalline form of amino silicates. It has a unique structure which allows crystallized water to be removed and end the end left is a porous crystalline structure. If a polar compound fluid has to be absorbed it can easily be absorbed with the help of low concentration fluid. Molecular sieves have strong absorptive force which allows it to easily remove impurities from gasses or liquids. Having strong ionic forces which is a result of the presence of cations like calcium, sodium and potassium.

Molecular Sieves for Ethanol Dehydration

Before understanding the process of ethanol drying with the help of molecular sieves it is important to understand what is a molecular sieve. It is that material which is used for absorption and has selective properties. These properties are important for the purpose of separating different mixture. It depends on the type of mixture that which size and shape of molecular sieves has to be used. Molecular sieves can be used in any form that is in pelleted, beaded or in powdered form. Molecular sieves are a result of the composition of three dimensional material that is micro porous material, macro porous material and meso porous material. A single bead of molecular sieves is made with the blend of all the three. Molecular sieves are used as absorbents for various other industrial applications. According to the requirement and size molecular sieves are of various types that is 13x, 3A, 4A and 5A. So, now with the help of these efficient absorbents it is now possible to extract moisture from oils to gasses. This is the most reliable source of moisture absorbent in oil and electronic industry.