MOLECULAR SIEVE
CMS-280 Carbon Molecular Sieve
CMS-280 is part of Haina’s carbon molecular sieve range for PSA nitrogen generation. Its published table links nitrogen purity with nitrogen yield and air-to-nitrogen ratio at 0.7 MPa.
| Model | CMS-280 |
| Diameter | 1.0–1.3 mm |
| Particle Strength | ≥85 N |
| Standard Packaging | 20, 40 or 137 kg/drum |
Product Overview
Haina specifies a 1.0–1.3 mm diameter and particle strength of at least 85 N. The performance table covers several purity levels, helping equipment engineers compare operating targets using the same test conditions.
Applications
Discuss this grade for PSA nitrogen-generation equipment with the required purity, flow rate, feed-air quality and cycle conditions available for review.
Technical Data
Physical Properties
| Item | CMS-280 Carbon Molecular Sieve Specifications |
| Diameter | 1.0-1.3mm |
| Bulk Density | ≥660-670Kg/m³ |
| Particle Strength | ≥85N |
| Attrition Resistance | ≤1％ |
| Moisture Content | ≤0.5％ |
| Standard Packaging | 20 kg/drum, 40 kg/drum, 137 kg/drum |
Nitrogen Generation Performance
| Adsorption Pressure | Nitrogen Purity (%) | Nitrogen Yield (L/kg·h) | Air-to-Nitrogen Ratio |
| 0.7MPa | 99 | 320 | 1:2.4 |
| 99.5 | 284 | 1:2.9 | |
| 99.9 | 203 | 1:3.8 | |
| 99.99 | 137 | 1:5.0 | |
| 99.999 | 100 | 1:5.8 |
Published test conditions: adsorption pressure 0.7 MPa; adsorption time 42–50 seconds; pressure equalization 1–2 seconds. Review the purity, yield and air-demand values at the same operating point.
Purity-Based Comparison
The table shows several nitrogen purity and yield combinations.
Mechanical Specification
Particle strength, moisture and attrition data are provided.
Equipment Matching
Review pressure and cycle time alongside the required nitrogen purity.
Storage & Selection
What information is needed to select CMS-280?
Please provide the feed-gas composition, desired product purity, required flow rate, operating pressure and temperature, plus the equipment configuration and cycle. For an existing system, include its current material grade and operating results. These details help Haina discuss a grade under comparable conditions.
How should I compare product specifications?
Compare values at the same test conditions and purity target. Particle size, bulk density and mechanical properties also matter to the vessel and process. The data on this page are a selection reference; request the current specification and confirm the relevant operating point before ordering.
How should unopened and unused material be stored?
Keep containers tightly sealed and dry. Prepare the equipment before opening a package, minimize exposure to humid air, and promptly reseal any unused material. Follow the product-specific storage instructions supplied with the order.
What should be checked before changing the adsorbent?
Identify the cause of the performance change first. Review feed pretreatment, moisture and oil carryover, filtration, pressure stability and the equipment cycle. Share the operating history with Haina so material selection can be discussed together with the condition of the system.
Does adding more CMS always improve nitrogen production?
No. Bed quantity must match vessel design, packing density, gas distribution and the PSA cycle. Uneven loading or localized high-velocity flow can reduce performance and damage particles. Follow the equipment supplier’s approved filling and commissioning procedure.
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