Zhongci Activated Alumina Desiccant Beads are high-performance, porous adsorbent materials primarily composed of activated aluminum oxide (Al₂O₃). Engineered for exceptional moisture adsorption and thermal stability, these beads are widely utilized across industrial gas drying, liquid purification, and environmental treatment applications.
Key Characteristics & Advantages
- Exceptional Adsorption Capacity:
Featuring a highly porous structure and extensive specific surface area (>300 m²/g), these beads exhibit superior affinity for water molecules, enabling deep dehydration of gases and liquids. Their high crush strength ensures longevity, especially in pressure swing adsorption (PSA) systems . - Thermal & Chemical Stability:
With outstanding thermal resilience, Zhongci beads maintain structural integrity and adsorption efficiency at temperatures up to 600°F (315°C). This allows for repeated thermal regeneration without significant degradation. They are chemically inert to most gases (e.g., air, O₂, N₂, H₂, hydrocarbons) and many organic liquids. - Versatile Regeneration:
Beads can be fully regenerated through heating (typically 350–600°F / 177–315°C), making them economically sustainable for cyclic operations in both thermal reactivation and PSA processes.
Primary Applications
- Gas Drying:
Widely used in compressed air systems, air separation plants (oxygen/nitrogen generators), natural gas dehydration, instrument air dryers, and petrochemical gas streams (e.g., ethylene, propylene). They achieve extremely low dew points reliably . - Liquid Purification & Treatment:
- Defluoridation: Effectively removes excess fluoride (F⁻) and arsenic (As) from drinking water and industrial wastewater, preventing fluorosis and arsenic poisoning .
- Decolorization & Deacidification: Purifies transformer oils, lubricants (e.g., vacuum pump oil), and hydrocarbon liquids by adsorbing acids and color bodies .
- Pollutant Removal: Adsorbs heavy metals (Pb, Cd, Hg), phosphates, chromates, sulfides (H₂S), SO₂, and NOx from aqueous solutions or exhaust gases .
- Catalyst & Carrier:
Serves as a robust, high-surface-area support material for catalysts in chemical processes (e.g., sulfur recovery via Claus process, hydrogen peroxide production) and directly functions as a catalyst in specific reactions .
Technical Specifications (Typical)
| Property | Value / Description | Source Reference |
|---|---|---|
| Physical Form | Spherical beads | |
| Common Sizes | 3-5 mm, 4-5 mm, 5-6 mm, 5-7 mm | |
| Material Composition | Activated Aluminum Oxide (Al₂O₃) | |
| Key Function | Adsorption of H₂O, F⁻, As, SO₂, organics | |
| Regeneration Method | Thermal (350°F – 600°F / 177°C – 315°C) | |
| Applications | Gas drying, water defluoridation, oil purification, catalysis |
This description synthesizes the technical attributes and applications detailed across the search results. Positioning Zhongci beads as a versatile industrial desiccant and adsorbent. For comprehensive datasheets or specific grade information, refer to the manufacturer’s technical documentation or the provided sources.
