Molecular Sieve Beads - 3A pore size

Molecular Sieve Beads – 3A Pore Size (3 Å) – Engineered for Selective Moisture Capture and Purification

The Molecular Sieve Beads – 3A Pore Size from N.B. Oler are precision-engineered adsorbents designed to selectively capture water and small polar molecules while excluding larger compounds. With a tight pore size of approximately 3 angstroms, these beads are ideal for applications where only moisture removal is desired without adsorbing valuable gases or solvents. The high-purity aluminosilicate structure delivers long-term stability, strong mechanical integrity, and excellent regeneration performance. These beads provide reliable dehydration performance for gas drying, solvent purification, and industrial processes with precise moisture control requirements.

Key Features

1. 3-Ångström Pore Size
The 3 Å pores enable selective adsorption of water molecules, while excluding larger molecules such as olefins or other organics.

2. High Adsorption Capacity
Large internal surface area supports efficient moisture uptake and strong drying performance.

3. Excellent Mechanical Strength
Beads resist attrition and crushing, offering durability through repeated cycles and minimizing dust.

4. Regenerable by Heating
Capable of being thermally regenerated (e.g., at ~200–300 °C), making them reusable for multiple drying cycles.

5. High Thermal & Hydrothermal Stability
Maintains structural integrity under high temperature and moisture cycling conditions.

6. Selective Adsorption Behavior
Designed to adsorb only water or similarly small species, making it ideal for dehydration where co-adsorption of other molecules must be avoided.

Product Specifications

• Pore Diameter: ~3 angstroms (3 Å)
• Material Composition: Potassium (and/or sodium) aluminosilicate zeolite, Type A
• Bead Size: Typically 1.6–2.5 mm (depending on batch)
• Bulk Density: ≥ 0.75 g/mL (typical)
• Static Water Adsorption: ≥ ~21.5% by weight under standard conditions
• Crush Strength: High – ≥ 35 N per bead (average across 25 beads)
• Regeneration Method: Thermal regeneration is recommended for reuse

Benefits

1. Selective Dehydration
The 3A pore size ensures that only water (and other very small molecules) are adsorbed, while excluding other gases or solvents — preserving system purity.

2. Cost-Effective Over Time
Regeneration capability means you can reuse the beads many times, reducing the need for frequent replacement.

3. Enhanced Stability
The strong, attrition-resistant beads maintain structural integrity, contributing to long service life and reliable performance.

4. Energy Efficiency
Regeneration at manageable temperatures saves energy compared to more aggressive drying or purification methods.

5. Improved Safety & Performance
In moisture-sensitive systems, removing water reliably prevents unwanted reactions, condensation, or corrosion — protecting both product quality and equipment.

6. Wide Application Versatility
Useful in drying gases (e.g., natural gas), solvents, or polar liquids, especially in systems that must avoid adsorbing large molecules.