C&CS Zeolite 3A
C&CS Zeolite 3A is a product for use in various separation processes as well as in gas and liquid drying. C&CS Zeolite 3A (molecular sieve
Zeolites are crystalline, microporous aluminosilicates composed of SiO₂ and Al₂O₃ tetrahedra. They occur in numerous modifications in nature and can also be manufactured. They possess a large internal surface area, and their pores and channels can be one-, two-, or three-dimensionally interconnected.
C&CS offers Zeolite 3A, Zeolite 4A, Zeolite 5A, and Zeolite 13X (FAU) as standard products. Learn more about the fascinating world of zeolites and their diverse industrial applications with our experts. Zeolites efficiently absorb pollutants, accelerate chemical reactions, and thus make a significant contribution to environmental and process optimization.
Special zeolites such as Zeolite ZSM-5 or Pentasil zeolites (MFI) are also available, and our experts will assist you in the correct application of these aluminosilicates.
Zeolites are primarily used for gas drying and selective adsorption. They find application in many industrial sectors, including filtration, separation, industrial gas processing, construction, agriculture, detergents, and PVC stabilizers.
Key applications also include specific systems such as high-pressure adsorption dryers—heat-regenerated or heatless regenerated—and hybrid dryers.
Zeolites are widely used in refining (e.g., gasoline or olefin production), petrochemicals (e.g., aromatics), chemicals (e.g., plastics), gas production and separation (e.g., oxygen, nitrogen, carbon dioxide), and exhaust gas purification (removal of volatile organic compounds (VOCs) and harmful nitrogen oxides (e.g., from diesel exhaust or chemical plants)).
The following table lists the most common zeolites and their key characteristics:
| Zeolite Type | Pore Size / Å (Angstrom) | Key Features | Typical Applications |
| Zeolite 3A | 3 | Potassium A type (K-A) | Drying of gases |
| Zeolite 4A | 4 | Sodium A type (Na-A) | Air and gas drying |
| Zeolite 5A | 5 | Calcium A type (Ca-A) | Oxygen/Nitrogen Separation |
| Zeolite 13X (FAU) | 10 | Sodium X type (FAU structure) | Gas Processing |
Overview of Vapour Phase Purification Processes:
| Separation | Application area | Adsorbent |
| H2O from Ergas | Gas transport | Molecular sieve 3A,4A |
| H2O from naphtha | Reformer gas, refinery | Molecular sieve 3A,4A |
| H2O made of polyurethanes | Plastics, adhesives | Molecular sieve 4A |
| H2O from air | Insulating glass, compressed air | Molecular sieve 3A,4A |
| H2O from air | Oxygen enrichment/PSA | Molecular sieve 3A,4A |
| CO2 from air | Oxygen enrichment/PSA | Molecular sieve 13X |
| CO2 from Erdga | Gastransport | Molecular sieve 13X |
| CO2 from air | Gas transport | Molecular sieve 4A |
| Mercaptans from natural gas | Gas transport | Molecular sieve 13X |
| SOx from air | Refinery | Molecular sieve 13X |
Overview of the liquid purification processes:
| Separation | Application area | Adsorbent |
| H2O from kerosene | Air-Fuel | Molecular sieve 3A |
| H2O from coolants | Refrigerators | Molecular sieve 3A |
| S connections from LPG | Refinery | Molecular sieve 13X |
| S-compounds from butane | Refinery | Molecular sieve 13X |
| CO2 from ethylene | Refinery | Molecular sieve 13X |
Overview of large-volume separation processes:
| Separation | Process name | Phase | Application area | Adsorbent |
| n- of iso-paraffins | Isosive | Steam | Refinery | Molecular sieve 5A |
| n- of iso-paraffins | Molex | Liquid | Refinery | Molecular sieve 5A |
| n- of iso-paraffins | Olex | Liquid | Refinery | Molecular sieve 5A |
| Sorbex | Parex/Leuna | Molecular sieve ZSM-5 |
C&CS Zeolite 3A is a product for use in various separation processes as well as in gas and liquid drying. C&CS Zeolite 3A (molecular sieve
C&CS Zeolite 4A, also known as molecular sieve 4A, is a product for use in gas drying and adsorption dryers. C&CS Zeolite 4A has proven
Zeolite 5A, also known as molecular sieve 5A, has slightly larger openings (pore size) compared to 3A and 4A. C&CS molecular sieve 5A is available
C&CS Zeolite 13X, also known as molecular sieve 13, is a product for use in gas drying. The pore size of this zeolite is approximately
