MOLECULAR SIEVE
GXN-CMS Carbon Molecular Sieve
GXN-CMS is developed for high-purity nitrogen generation from air. Haina describes direct production through a single PSA unit, with purity reaching up to 99.9995% in its product introduction.
| Model | GXN-CMS |
| Diameter | 1.0–1.2 mm |
| Particle Strength | ≥95 N |
| Standard Packaging | 20 or 40 kg/drum |
Product Overview
The original description emphasizes high-purity performance and nitrogen recovery. Haina also states that this grade is not intended for equipment requiring nitrogen purity below 99.9%; confirm the operating target before selection.
Applications
Listed applications include precision instrumentation, biological sciences and other environments with strict nitrogen-purity requirements. Its table includes nitrogen yield, recovery rate and air demand.
Technical Data
Physical Properties
| Item | GXN-CMS Carbon Molecular Sieve Specifications |
| Diameter | 1.0-1.2mm |
| Bulk Density | ≥690-700Kg/m³ |
| Particle Strength | ≥95N |
| Attrition Resistance | ≤1％ |
| Moisture Content | ≤0.5％ |
| Standard Packaging | 20 kg/drum, 40 kg/drum |
Nitrogen Generation Performance
| Adsorption Pressure | Nitrogen Purity (%) | Nitrogen Yield (L/kg·h) | Nitrogen Recovery Rate | Air-to-Nitrogen Ratio |
| 0.7MPa | 99.5 | 340 | 49 | 1:2.6 |
| 99.9 | 270 | 40 | 1:3.2 | |
| 99.99 | 165 | 30 | 1:4.2 | |
| 99.999 | 105 | 26 | 1:4.9 |
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.
High-Purity Focus
Haina positions GXN-CMS for demanding nitrogen-purity requirements.
Recovery Information
Nitrogen recovery is included alongside yield and air demand.
Targeted Selection
Confirm the intended purity and equipment duty before choosing this grade.
Storage & Selection
What information is needed to select GXN-CMS?
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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