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Zeolite molecular sieves have the structure and characteristics of crystals, the surface is a solid skeleton, and the internal holes have the function of adsorbing molecules. There are pores connected, and molecules pass through the pore’s channels. Due to the crystalline nature of the pores, the pore size distribution of molecular sieves is very uniform. Molecular sieves according to the size of the holes in their crystal selectively adsorb molecules, that is, they adsorb molecules of a certain size and repel molecules of large substances, so they are figuratively called “molecular sieves.”
The function of molecular sieve adsorption or repulsion is affected by the polarity of the molecule. Synthetic zeolite has the special function of selective adsorption according to the size and polarity of the molecule so that gases or liquids can be dried or purified, which is the basis for the separation of molecular sieves. Synthetic zeolite can meet the extensive needs of the industry for adsorption and selection of characteristic products, and it is also widely used in industrial separation.
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CNM has been serving various market sectors where Molecular sieve play an integral role. These industries demand high-quality Molecular sieve.
Molecular sieves are used for drying gases and liquids and for separating molecules on the basis of their sizes and shapes.
When two molecules are equally small and can enter the pores, separation is based on the polarity (charge separation) of the molecule, the more polar molecule being preferentially adsorbed.
Molecular sieves are materials with pore sizes of molecular dimensions within which, ignoring surface effects, selectivity is a function of molecular size, with smaller molecular species having higher diffusion rates.
In molecular sieve studies, permeate molecules are commonly known as “guest” molecules.
However molecular sieve is not toxic. Molecular sieve is hygroscopic which means that when accidentally beeing consumed/swallowed the product will attract moisture from the surroundings i.e. the gastrointestinal (GI) tract. Molecular sieves are not considered to be persistent, bioaccumulating nor toxic (PBT).
Molecular sieves are in the family of desiccants, also known as adsorbents, used for hydrocarbon drying, described as the removal of dissolved water from hydrocarbon gases and liquids. Refineries use molecular sieves dryers for many dissolved water removal applications.
Costs – molecular sieves are often more expensive than other techniques in the purchase price.
Fragile – molecular sieves can break which can result in particles that can get into a process.
Selective – not always applicable after removal of various molecules.
Once regenerated, allow material to cool for at least an hour before handing or placing in storage.
You can reuse molecular sieve multiple times as long as proper regeneration steps are followed. Repeat when necessary!
The selectivity of a molecular sieve is determined by its pore size, molecules with a critical diameter which is less than the pore size will be efficiently adsorbed while larger molecules will be excluded.
To choose a molecular sieve, consider the specific application, the type of molecules to be separated, the desired purity level, and the operating conditions.
Different molecular sieve types have varying pore sizes and adsorption properties, so selecting the appropriate type is crucial for optimal performance.
Here are the top 5 molecular sieve manufacturers globally:
Honeywell UOP (Universal Oil Products)
Zeochem AG
Arkema (CECA)
Tosoh Corporation
Grace Catalysts Technologies (W. R. Grace & Co.)
These companies are recognized for their innovation, quality control, and global distribution networks, making them leaders in the molecular sieve industry.
There are some questions and answers here to help you quickly know our serivice.
Our MOQ is 500 kilograms, which varies with different products.
5-15MT, 3-5 days//15-25MT, 5-7days//25MT-xxxMT, 7-10days. Our delivery time will be adjusted according to your demand.
Our export sales team have exportting business more than 20 years. You will happy for our profressional working way.
Yes, we manufacture according to ISO9001 system. Have a full quality control in the whole process.
If you are our new cusotmer, you are expect to pay the sample and freight for sample delivery. When you place formal batch order more than 20,000 USD after sample testing, We will consider deduct part of sample fee from the tota amount of formal batch order. But this will discuss by both of us, because not sure your sample qty and total amount.
a. For small trial order, by air or by express :FEDEX, DHL, UPS, TNT etc
b. For large order, we arrange shipment by sea or by air according to your requirement.
Always a pre-testing material before mass production;Always final Inspection before shipment.
RELIABLE MANUFACTURER OF MOLECULAR SIEVE
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Building 53, No.1500 Xinfei Avenue, Shanghai
No.229, Qingyijiang West Avenue, Xuancheng
We will contact you within 1 working day, please pay attention to the email with the suffix “@cnmstable.com”.
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