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Molecular Sieves for Water Removal
  • Works as the best adsorbent for industrial use
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  • High adsorption capacity to minimize wastage
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  • types of molecular sieve for water removal
  • molecular sieves for water removal applications
  • Molecular sieves for water removal factory
  • Molecular sieves for water removal packaging
  • types of molecular sieve for water removal

Molecular Sieves for Water Removal Manufacturer

  • Multiple types of sieves
  • High quality molecular sieves
  • High manufacturing standards
  • Affordable pricing of molecular sieves
  • High production capacity

Your Reliable Molecular Sieves for Water Removal Manufacturer

It is common that you would consider getting the molecular sieves from SWT thanks to our reputation online. The reputation does not come easily unless we do a good job. Knowing that you would get multiple types of sieves from our company is an assurance that we can handle your applications even better. 

The high-quality molecular sieves we make are highly desirable because we understand where they will be used. SWT boasts of checking the molecular sieves thoroughly before sending them to the client. This is quite vital because SWT understands the importance of the processes that use molecular sieves. 

Another reason for buying from SWT is because of the high manufacturing standards. These manufacturing standards ensure that the molecular sieves would always lead to better results. Also, the regular inspections by our supervisors ensure that you get all the right molecular sieves. 

How often does the company make the molecular sieves? Because of our high production capacity, you will find that everything can be done fast. We can start the production from the moment you pay for the order. If you need more help on the order or molecular sieve, we can still help. 

  • Removal of water in natural gas streams
  • Purification of oxygen and nitrogen
  • Production of bulk oxygen in PSA
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Molecular sieve desiccant
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Molecular sieve beads
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Molecular sieve 4a
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Molecular sieve 13x
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Molecular sieve absorbent
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Molecular sieve activation
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Molecular sieve bed design
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Molecular sieve concentrator
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Molecular sieve device oxygen

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Molecular Sieves for Water Removal: How to Best to Use Molecular Sieves


The molecular sieves can come in handy to help you achieve many applications and water removal can be one of them. So, you need to get yourself molecular sieves for water removal if you have hopes of handling the operations faster and efficiently. This guide looks are more information on the molecular sieves for water removal and how best you can use them. Let us learn more. 

What are the Best Molecular Sieves for Water Removal?

molecular sieves for water removal types

The molecular sieves for water removal are often also referred to as zeolites. Their work is to adsorb the small molecules while leaving the larger molecules free. A good example is when the molecular sieves will adsorb water from a process. Such a method helps the users to find the right use for molecular sieves. 

You always have to use the right molecular sieve type for water removal since there are several in the market. Some of the popular types are the zeolite Type A molecular sieves and the zeolite Type X molecular sieves. They would have different applications due to difference in structure. 

The type A zeolites will have distinct capabilities that allow adsorption through ion exchanges. As for Type X framework, they would have large pore openings to help in adsorbing even more polar compounds. 

Another difference is that type A zeolite having the size of 4 to 8 meshes, they would be the right choice for gas-phase application. As for the Type X zeolites with a mesh size of 8 to 12, they would work right for liquid-phase applications. It is why you can find different forms of the molecular sieves including paste, powder, beads, and pellets. 

Each category would have even more options under it. What you need to know is how good the framework is for the job in hand. 

Type A or Type X Molecular Sieves for Water Removal? Which is Better?

Molecular sieve 5a vs 3a

What you need know about molecular sieves is they can in different types. These types will always be important to your application. If you need water removal plus other applications, there is more you are supposed to do. Here is a better understanding of what each type of molecular sieve for water removal. 

  • Molecular Sieve 3A 

The molecular sieve 3A will be made through the substitution of potassium cations. Expect it to have a pore size of 3 angstroms and hence the name molecular sieve 3A. This will be the smallest size of molecular sieves you can get on the market right now. Since its pore size is almost the same as that of water molecule, it will be a good choice for adsorbing the water molecules. It may be why you find it common in different applications as a drying agent. 

In addition to water, it will also adsorb helium, ammonia, and hydrogen all at the normal temperatures. 

  • Molecular Sieve 4A

The other choice for a molecular sieve is the 4A type. This one will have sodium ions in its base structure unlike potassium cations for the 3A mentioned above. Having the 4A diameter means that it even gets more applications than the 3A above. So, in addition to adsorbing the water molecules, the molecular sieve will also adsorb other molecular compounds that have a smaller diameter. Also, the 4A is also like for not having volume discontinuities. 

  • Molecular Sieve 5A

This one has an approximate diameter of 5A and it has calcium for its base structure. Since the water molecules have a diameter less than 3A, it is easer for them to be adsorbed faster and efficiently. Also, the molecular sieve 5A has some good volume performance. You can sieve many things thanks to such a size. Most of the time, even organic solvents and diluted HF acid would be adsorbed. 

  • Molecular Sieve 13X

Now unto the 13X type. This is the only Type X option you can get from most companies. For this type, the pore size is around 10A. It has an interesting base structure which makes it ideal for purifying gas, raw gas especially in air separation equipment and so much more. When you compare it to the type A molecular sieves, this one tends to offer high purity streams. 

The type X crystals would also be shaped differently. Because of their shapes, you will get more pore sizes. Such type of pore sizes will also be ideal for oxygen product. The other applications are cryogenic distillation process for dehydrating the LPG and LNG streams. Such streams require that you use the molecular sieves so that water does not lead to blockage or freezing the pipeline. 

So far you should see that the various molecular sieves will have different uses based on their structures and use. 

How is the Molecular Sieve 5A and 3A both Made from Molecular Sieve 4A?


What most people do not know is that all the molecular sieves start out as molecular sieve 4A and then various processes are done to turn them into 5A and 3A. In the first place, the molecular sieve will start in powder form. This powder is then combined with more binding material that allows for the sieves to be rolled into beads. The next step is to dry them at a temperature of 600 to 700 degrees F. 

To get the molecular sieve 3A, the SWT will perform the famous ion exchange procedure on the molecular sieves. Here, the sodium ions are expected for potassium ions. This exchange has an effect on the diameter of the pores thus creating the molecular sieve 3A. 

You may notice that SWT sells different grades of molecular sieves. The difference is in how much percentage of the ions were exchanged during the process. 

How about when you want molecular sieve 5A? In this case, there is an ion exchange but this time replacing the sodium ions with calcium ions. The grading is also the same as in the scenario of molecular sieve 3A. 

How is Activated Alumina Different from Molecular Sieves for Water Removal?

Activated alumina vs molecular sieves

When looking for desiccants, activated alumina together with molecular sieves will be the common choices. Now that you already know more about what is molecular sieve, let us look at activated alumina to further understand what it is all about. 

Activated alumina is basically aluminum oxide in solid form. This is still the same mineral which would be used in the making of ruby and sapphire. So, it is quite a proper material that should not be taken lightly. The activated alumina would have its water content removed by heating it. This also makes it to have a high surface area with many pores. Such pores would make it easier for the activated alumina to take up more water and other molecules too through the adsorption process. 

Activated alumina is used as a desiccant like the molecular sieves for water removal. You would also find it commonly used for drying compressed air and also as part of many other liquid and gas streams. It is then why you can find it as a popular option for water filtration and also working as a catalyst. As a catalyst, you will get it in the Claus process as a desulfurizing treatment option. 

The differences

So far you can see that both molecular sieves for water removal and activated alumina will be a great choice for adsorbing moisture. However, they will differ in multiple ways. The first difference is that the molecular sieves can have its pores varied based on ion exchange process. This means you can hone them to discriminate other molecules even better. That is why you can find molecular sieves better for separating water and ethanol than the activated alumina. 

Well, activated alumina will also have its own pros. This is because it always showers better affinity to water than molecular sieves. It is why you can still use it as the best option for drying liquid and gas streams. This is where the adsorption of moisture is very key. The high crush strength also makes the activated alumina to easily withstand the pressures while working in different industries. 

We must point out that activated alumina like molecular sieves is not harmful to the environment and people. Just ensure you are using it as required and you should be good. 

What are the Adsorption Capabilities of Various Molecular Sieves for Water Removal?

The adsorption capacity would be a major impact in the determination of where to use the molecular sieves for water removal and other applications. Here is a quick guide on finding out more information on the overall molecular sieve adsorption capabilities. 

  • The molecular sieve 3A will have a pore size of 3A with an adsorption capacity of 19 to 20% of its weight. Such a capacity makes it ideal for desiccation of carking gas, dehydrating insulated glass, and drying of the ethanol fuel. 
  • As for the molecular sieve 4A, it has a pore size of 4A and adsorption rate of 20 to 21% of its weight. You may notice that it is good for packaging of drugs, perishable chemicals, and the electric components. Of course, the adsorption of water will be its biggest advantage.
  • Looking at the molecular sieve 5A, it will have relatively the same water removal performance where its adsorption rate is 20 to 21% of its weight. You should find it being great for desiccation and the purification of air. It is also ideal for dehydration and further desulfurization of liquid petroleum gas and natural gas. 
  • We cannot forget about the 13X molecular sieve. With a pore size of 10A, it is expected that it would definitely have better capacity. That is true since it has a water capacity of 23 to 24% of its weight. Such a capacity is huge and would have many applications. The most common for this molecular sieve type include desiccation, purification of natural gas and petroleum gas, and desulfurization. 

Understanding the various adsorption capacities above is a sure way of using the right molecular sieve for the job. Even the support team at SWT can help you find out more about the best molecular sieve to use for the job. 

Can you Keep Reusing Molecular Sieves for Water Removal?

reusing molecular sieves

Having the small uniform pores generally makes the molecular sieves quite versatile. What most people might wonder is if the molecular sieves for water removal are reusable. If you need to use them on a large scale, you would want them to be reusable because of the expense. The good news is that yes, the molecular sieves for water removal are reusable. 

The basic principle of the molecular sieves is to adsorb the water under pressure, the desorption happens when the opposite is done. There will be lowered pressure and similarly increase the temperature. This process is known as desorption or regeneration of the molecular sieves. 

To help regenerate the molecular sieves, they would be heated until the temperatures reach over 400 degrees F. This type of temperature is the same as to when you are baking in a standard kitchen oven. At these high temperatures, the water, alcohols, and any aromatic hydrocarbons that had been adsorbed will be eliminated from the molecular sieve. You now end up with a molecular sieve that would last you for longer. 

The molecular sieve can last from anywhere three to five years. The fluctuation in durability will largely depend on the use of the molecular sieves for water removal and how often they need regenerating. 

Are Molecular Sieves for Water Removal Affordable?


When you compare to other desiccants in the market, the molecular sieves for water removal might not be the cheapest. However, the price always leaves you with a highly efficient sieve. The overall cost per unit of the molecular sieves will depend on the volume that you need to be dehumidified and the dryness levels. So, always ask about the dryness levels to pick the best molecular sieve for water removal. 

Are Molecular Sieves for Water Removal Dangerous?

molecular sieve dangers

Whenever you start using molecular sieves for water removal, you may notice that there are certain precautions that the manufacturer such as SWT recommends you do. Some of the warnings include;

  • You should be aware that molecular sieves my cause skin irritation. Also, the same may happen for eye irritation. If you end up with the molecular sieves powder in the eyes, rinse them with plenty of water for a few minutes. In case you have contact lenses, you should remove them immediately and continue to rinse. 
  • How about inhalation? If it can cause irritation to the skin, the inhalation would also have some irritation. SWT recommends not inhaling the powder since it may cause irritations to the respiratory tract. 
  • Ingestion is also not good. The molecular sieves may be harmful in case you end up swallowing them. 

One good thing about the molecular sieves for water removal is that they are not flammable or combustible. You can use a water spray or dry chemical in case of a fire and it will work good. 

You should also practice safe handling and the storage of the molecular sieves. You need to avoid making the molecular sieves to get into contact with your skin and eyes. Also, keep the molecular sieves in an airtight container to help keep them active for at least six months. 

How Can You Check the Adsorption Capacity of the Molecular Sieves for Water Removal?

molecular sieve adsorption capacity

One way would be to check the package that the molecular sieves come in. The packaging should have additional information such as the overall grade of the sieves and how much performance you can get before you need to regenerate the molecular sieves. 

There is another way you can test for adsorption capacity. Start by placing the sample of the desiccant in the oven then set the temperature to 500F. Let it bake for around 3 hours and then remove the sieves from the oven. Ensure that you seal the container to prevent the molecular sieves for water removal from adsorbing the moisture. Let the sample cool to room tempeture. It should take an average of 24 hours. 

Pour around 45ml of water into a separate container then measure its temperature. Add the water to the molecular sieves and stir it. Make sure that you also take note of the temperature while mixing the two. If the molecular sieve is doing its job, you will notice a considerable increase in the temperature. 

The increase in temperature does not always mean it is in good condition. If the temperature difference is more than 40 degrees F, then the molecular sieve for water removal is in good condition. If it is vice versa, then the desiccant could need some replacement. 

SWT will still guide you further on the molecular sieve shelf life. Sometimes you may notice molecular sieves are not doing their job well because they have gone bad. So, always stick to the product’s shelf life. 

What are the other Popular Desiccants than Molecular Sieves?

silica gel powder

Yes, molecular sieves for water removal are good at their job. However, there will be other options too that you can use in their place. They include the following. 

  • Silica gel 

Silica gel will mostly be in the form of beads. It can be good at adsorbing water to leave you with a dry environment. That is why you would find it commonly in many small-scale applications. Even though it does not have the best water capacity, it will still be good at keeping the moisture down. 

There is also indicating silica gel too. This silica gel type would be processed with cobalt chloride. The use of cobalt chloride helps in indicating if their water in a place. The beads will turn from blue to pink. It also indicates that the silica gel is saturated and there is the need to replace them soon. 

  • Clay 

There is also the use of clay because it is high in compounds such as magnesium aluminum silicate. The clay can be further processed into montmorillonite clay so that it will be good as a desiccant. You will find that it works best at room temperature. Most also find that clay would be among the least expensive desiccants. This is what makes a popular choice for some industrial applications. 

There will be many other molecular sieves alternatives. Just ensure what you get will do the job right light the molecular sieves for water removal. 

Where Can You Buy the Molecular Sieves for Water Removal?


Maybe you have seen that molecular sieves can still be good for multiple applications in addition to removing water from gas and liquid streams and you want some. Where best can you buy such molecular sieves? 

You can buy from SWT easily from the official website. Here you would get the best advice on which is the best molecular sieve for water removal so that you can handle the various projects better. Also, you can get better discounts from SWT so that you can save money on your next purchase. 

SWT will still be good at fast turn around times. This means that you do not have to stall your project anymore. The molecular sieves are often made in huge batches. So, they would be ready for shipping once you place the order. Quick turnarounds are what more people desire and SWT is here to offer you all it has. 

The presence of a variety of options should be another reason to buy from SWT. This is because you can always find the best grade of molecular sieves for water removal. This is by far a great way of spending your money to find the right molecular sieve. 



The best molecular sieves for water removal would always to a good job of ensuring your next application will be done right. Also, no need to worry that the molecular sieve will not last long. Most of them can go up to five years easily. That is plenty of time to give you all the water removal performance that you ever need. Consult with SWT to find more information about the molecular sieves for water removal before making up your mind. 


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