Views: 0 Author: Site Editor Publish Time: 2026-05-28 Origin: Site
Gas is a key raw material in industrial production. From semiconductor nitrogen to medical and metallurgical oxygen, purity and stability are critical to performance and safety.
Efficient gas separation and impurity removal rely on advanced adsorption materials such as carbon molecular sieve, lithium molecular sieve, and 3A/4A/5A/13X zeolite sieves, forming a complete industrial gas purification system.
1. Carbon Molecular Sieve (CMS)
In Pressure Swing Adsorption (PSA) nitrogen generation, the core challenge is separating nitrogen from air. Carbon molecular sieve plays a decisive role in system performance.
Unlike conventional zeolite adsorbents, carbon molecular sieve operates based on the kinetic effect. At the microscopic level, oxygen molecules diffuse much faster than nitrogen molecules.
When compressed air passes through the CMS bed, oxygen molecules rapidly enter the micropores and are preferentially adsorbed, while nitrogen molecules, due to slower diffusion, pass through the bed and are collected as product gas. This enables efficient nitrogen–oxygen separation.
2. Lithium Molecular Sieve & sodium Molecular Sieve for Oxygen Generation
If carbon molecular sieve is the foundation of nitrogen generation, then sodium & lithium molecular sieve represents a technological upgrade in oxygen production.
Oxygen production typically relies on zeolite molecular sieve that preferentially adsorb nitrogen due to its stronger quadrupole moment, allowing oxygen to pass through.
Our lithium molecular sieve features a high silica-alumina ratio and a unique crystal structure, providing significantly higher nitrogen adsorption capacity.
Key Advantages of Lithium Molecular Sieve：
Energy saving: Reduces vacuum pump energy consumption in VPSA systems
Compact design: Cuts equipment size by over 30% at the same capacity
High purity: Produces oxygen purity of 93% ± 3%
3.Adsorption Purification: 3A / 4A / 5A / 13X Molecular Sieve
In petrochemical,air separation, and natural gas industries, gases often require deep purification, where different molecular sieves play specific roles.
3A: “dehydration specialist” for ethanol and cracking gas systems, selectively adsorbing water while avoiding co-adsorption.
4A: Removes moisture and small polar impurities such as methanol, ethanol, and H₂S, commonly used in air pre-treatment systems.
5A: Enables separation of normal and iso-paraffins, and is widely used in cracking gas desulfurization and decarbonization.
13X: High adsorption capacity for deep purification and broad removal of impurities in industrial gas systems.
About Chemxin:
Guangzhou Chemxin Environmental Material Co., Ltd. has specialized in the production of molecular sieve, activated molecular sieve powder, activated alumina, and ceramic ball for over 24 years. Our factory covers 50,000 square meters and employs more than 250 staff members, including a dedicated R&D team committed to innovation and quality.
If you have any inquiries or requirements, please feel free to contact us at any time. We are here to provide you with professional solutions and reliable service.
E: info@chemxin.com
