Alumina for air drying is a high-performance adsorbent made of high-purity alumina with excellent moisture absorption capacity, high mechanical strength and good thermal stability. It is widely used in compressed air drying, industrial gas purification, electronic moisture-proof, pharmaceutical storage and other fields.
Activated alumina specification
| Item | Unit | Value | |||||
| size | mm | 1/8″ | 3/16″ | 1/4″ | 3-5mm | 4-6mm | 5-7 mm |
| Static adsorption(25℃, 50%RH) | Wt% | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 |
| Bulk density | g/ml | 0.75-0.85 | 0.75-0.85 | 0.75-0.85 | 0.75-0.85 | 0.75-0.85 | 0.75-0.85 |
| surface area | m2/gr | 350 | 350 | 350 | 350 | 350 | 350 |
| crushing strength | N | ≥160 | ≥220 | ≥320 | ≥160 | ≥230 | ≥250 |
| loss on attrition | % | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.06 | ≤0.06 |
| loss on ignition(1000℃) | % | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 |
| pore volume | cc/g | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
The specifications of alumina for air drying include 0.5-1mm, 1/8 mm, 3/16 mm, 1/4 mm, 4-8 mm, 5-8 mm, 10-12 mm, 8-10 mm, etc., which can be customized according to customer needs.
Application examples of alumina for air drying
Alumina for air drying is widely used in industrial gas treatment, precision manufacturing and environmental control due to its efficient moisture absorption performance and stable chemical properties. In compressed air systems, it can deeply dehumidify and reduce the dew point to below -40°C, effectively preventing pipeline corrosion and equipment failure; in precision manufacturing processes such as semiconductors and lithium batteries, it ensures a dry production environment and protects sensitive components; it is also suitable for medical oxygen purification, food packaging and other scenes with strict hygiene requirements, and complies with GMP and FDA standards. Its high temperature resistance (up to 400°C) supports thermal regeneration and recycling, greatly reducing operating costs, and is an ideal choice for industrial dehumidification and gas purification.
Why choose Shandong Bairui’s alumina desiccant?
✔ Cost-effective: high adsorption efficiency, many regeneration times, and low long-term use cost.
✔ Customized service: particle size, adsorption performance and other parameters can be adjusted according to customer needs.
✔ Technical support: provide professional drying system design and optimization solutions.
✔ Stable supply: large-scale production to ensure product quality and delivery cycle.
✔ Activated alumina desiccant price：good quality and low price.