Application-Based Selection
We start from your feed composition, pressure, temperature, flow rate, target outlet specification and regeneration conditions.
Product Range
Molecular Sieve Product Series
Three adsorbent series for air separation, oxygen generation and industrial drying — send us your process conditions and we will help you select the right grade.
Air Separation Molecular Sieves
13X molecular sieves for pre-purification units — removing water and carbon dioxide before cryogenic separation.
PSA Oxygen Generation Molecular Sieves
Adsorbents developed for PSA and VPSA oxygen generators, supporting stable oxygen production.
3A, 4A & 5A Molecular Sieves
Standard pore-size grades for gas and liquid drying, solvent dehydration and purification.
Industrial Adsorbents
Molecular Sieve Solutions for Reliable Gas and Liquid Purification
Molecular sieves, activated alumina and application support for air separation, oxygen generation, natural gas processing, petrochemical purification and industrial drying.
Why Cangshi
Support for Technical Buyers
Documentation & Batch Support
Product documentation, batch information and handling guidance can be supplied according to the agreed commercial scope.
Service Support
Support can cover adsorbent selection, replacement planning, loading coordination and spent-material handling, subject to project requirements.
Products
Featured Products
Our core molecular sieve series. Send your process conditions for selection support and a quotation.
View all productsPSA Oxygen Generation Molecular Sieves
Molecular Sieve for PSA Oxygen Generation
High-performance adsorbents for oxygen concentrators and industrial PSA oxygen-generation systems. In PSA oxygen generation, the adsorbent selectively adsorbs nitrogen from air so oxygen-enriched gas can be produced on site.
Air Separation Molecular Sieves
13X Molecular Sieve for Air Separation
13X molecular sieve is a sodium-form X-type zeolite adsorbent designed for the removal of water, carbon dioxide and molecules with an effective diameter below approximately 10 angstroms. It is widely used in industrial gas drying and pre-purification duties.
3A, 4A & 5A Molecular Sieves
Molecular Sieve 3A
3A molecular sieve is a potassium-form A-type zeolite adsorbent with an effective pore opening of approximately 3 angstroms. It adsorbs water and other small polar molecules while excluding most hydrocarbons, which makes it a standard choice for deep drying of gases and liquids.
3A, 4A & 5A Molecular Sieves
Molecular Sieve 4A
4A molecular sieve is a sodium-form A-type zeolite adsorbent with an effective pore opening of approximately 4 angstroms. It readily adsorbs water, carbon dioxide and other small molecules, and is widely used for general-purpose drying and purification of gases and liquids.
3A, 4A & 5A Molecular Sieves
Molecular Sieve 5A
5A molecular sieve is a calcium-form A-type zeolite adsorbent with an effective pore opening of approximately 5 angstroms. It adsorbs normal (straight-chain) paraffins and small polar molecules, and is used in separation and purification duties where selective adsorption is required.
Applications
Where Our Adsorbents Are Used
Air Separation Pre-Purification
13X molecular sieves remove water and carbon dioxide from air before cryogenic separation.
PSA & VPSA Oxygen Generation
Adsorbents that support stable oxygen production in PSA and VPSA systems.
Natural Gas & LNG
Drying and purification of natural gas ahead of liquefaction and transport.
Petrochemical Purification
Removal of water and trace impurities from feedstocks and process streams.
Industrial Drying
3A, 4A and 5A grades for drying gases, liquids and solvents.
Technical Notes
Technical Notes & Updates
Notes on molecular sieve selection, loading and product care.
View all stories
Featured storyApplications
Why Air Separation Pre-Purification Removes Both Water and Carbon Dioxide
Air separation units remove water and carbon dioxide from air before it is cooled, because both would freeze solid inside the cold box. This article explains why.
Latest stories
Loading & Care
Loading and Handling Molecular Sieves: Points That Protect Performance
Most adsorbent problems blamed on product quality start during loading and storage. This article covers the storage, loading and sealing habits that protect performance.
Product Selection
Molecular Sieve Types Explained: Choosing Between 3A, 4A, 5A and 13X
Molecular sieves are named by pore size. This guide explains what 3A, 4A, 5A and 13X can and cannot adsorb, where each grade is used, and how to choose the right one.
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