spherical molecular sieve
Spherical molecular sieves are commonly used adsorbent and catalytic materials in industry. Currently, there are multiple suppliers on the market offering different types of products, such as 3A, 4A, 5A, and other specifications, which are widely used in glass, chemical, and other fields. This material appears as beige or white spherical particles, with tiny pores distributed throughout its interior, enabling it to selectively adsorb molecules of specific sizes like a sieve. It boasts high adsorption capacity, strong selectivity, and high temperature resistance. It is widely used in organic and petrochemical industries and also serves as an excellent adsorbent for gas dehydration. It is also gaining increasing attention in waste gas purification
Product Model：3A,4A,5A,13X，Hollow glass molecular sieve
Common Specifications：φ1.6-2.5mm，φ3-5mm，φ4-6mm
Product Introduction
Spherical molecular sieves are commonly used adsorbent and catalytic materials in industry. Currently, there are multiple suppliers on the market offering different types of products, such as 3A, 4A, 5A, and other specifications, which are widely used in glass, chemical, and other fields. This material appears as beige or white spherical particles, with tiny pores distributed throughout its interior, capable of selectively adsorbing molecules of specific sizes like a sieve.
Good fluidity and easy filling: The spherical particles have a smooth surface, excellent fluidity, and are suitable for fluidized bed reactors. They can operate stably and reduce equipment wear, with a moderate packing density and convenient loading and unloading.
High strength and wear resistance: Compared to other shapes, spherical molecular sieves exhibit greater compressive strength, lower wear rate, and reduced dust shedding, which contribute to enhancing product performance and minimizing raw material waste.
Unified specifications for easy control: Production through specialized equipment (such as molecular sieve balling machines) can achieve consistent particle size (e.g., 0.5-5 mm), fast balling speed, and facilitate industrial standardized applications.
- 1.Type A series (3A/4A/5A): The most common, with varying pore sizes. 3A is primarily used for glass drying; 4A for washing and water treatment; 5A for normal and isomeric separation, etc.
- 2.Type X and Type Y: For example, 13X molecular sieve has a larger pore size and is suitable for air separation and gas purification; KBa-Y is used for specific aromatic hydrocarbon separation.
- ZSM series: such as ZSM-5 spherical molecular sieve, with a high silicon-to-aluminum ratio, is mainly used in petroleum catalytic cracking to enhance gasoline octane number.
- Special models: such as SAPO-34 spherical molecular sieve, which is self-assembled from nanosheets and used for specific catalytic processes.
- Drying, dehydration, and anti condensation: 3A molecular sieve is commonly used in the manufacturing of insulating glass, which can adsorb moisture in the interlayer, prevent glass from fogging and condensation, ensure that the glass remains transparent at low temperatures, and extend its service life to more than 20 years. It can also be used for deep drying of gases or liquids, such as air and natural gas dehydration.
- Petrochemical catalysis: Spherical ZSM-5 and other models exhibit stability in catalytic cracking, diesel pour point reduction, and methanol to gasoline processes. The spherical structure facilitates fluid distribution and improves reaction efficiency. SAPO-34 spherical molecular sieve can be used for methanol conversion to produce low-carbon olefins and automobile exhaust treatment.
- Purification and Separation: 4A molecular sieve can be used for wastewater treatment to remove ammonia nitrogen and heavy metal ions, and can also be used as a detergent additive to soften water quality. KBa-Y spherical molecular sieve is used to separate and extract high-purity xylene from xylene.
- Requirements for filling environment:
The operation of filling desiccants should be carried out in a dry and dust-free room to ensure that the molecular sieve is not contaminated or affected by moisture. - Avoid prolonged exposure:
After opening the packaging of the desiccant, it is strictly prohibited to expose it to the air for a long time. The process from filling to gluing should be completed continuously in the shortest possible time to prevent the molecular sieve from absorbing moisture and becoming ineffective. - Handling of packaging damage:
If the packaging of the molecular sieve is damaged, it must be tested and approved before use. This is to ensure that the performance of the molecular sieve is not affected and to avoid product failure caused by the use of unqualified desiccants. - Sealing inspection:
There should be no air leakage around the sealed insulated glass. Leakage can cause the molecular sieve to lose its protective function, so the sealing should be carefully checked. - Avoid direct sunlight exposure:
After gluing the laminated insulating glass, it is strictly prohibited to expose it to direct sunlight. High temperature and direct sunlight may cause the sealant to age, affecting the sealing effect and thereby reducing the drying performance of the molecular sieve.
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