Carbon Molecular Sieve (CMS)
Packing and typical duty
Before you order
- Compare this grade with the others — pore size, what it adsorbs and the regeneration temperature
- Packing, lead time and Incoterms — 25 kg bags, drums or big bags, 1,000 kg minimum
- Request a sample — 0.5–1 kg from production with its certificate of analysis
Carbon Molecular Sieve
Carbon molecular sieve is a microporous carbon adsorbent. Unlike zeolites, its separation is based on rate: oxygen enters the pore mouth much faster than nitrogen, so a short PSA cycle produces enriched nitrogen. It is the adsorbent inside PSA nitrogen generators.
Specification (typical values)
| Parameter | Typical value |
|---|---|
| Type | Carbon molecular sieve (CMS) |
| Form | Cylindrical pellets |
| Typical diameter | 1.0–2.2 mm |
| Bulk density | 0.63–0.70 g/ml (630–700 g/L) |
| Crush strength | ≥50–100 N/particle |
| Nitrogen purity | 95–99.999% (plant and cycle dependent) |
| Nitrogen output (99.5%, 0.8 MPa) | 165–280 Nm³/h·t (typical range) |
| Adsorption cycle | 2 × 60 s typical |
| Moisture as packed | ≤1.0 wt% |
Typical values for this grade, taken from commonly published industry data and the standard shown below. The values actually delivered are those measured on your lot and reported on its certificate of analysis.
Reference standard: PSA nitrogen grade
Typical applications
PSA Nitrogen Generation
On-site nitrogen at 95–99.999% for industry and electronics.
Food Packaging
Modified atmosphere packaging and storage.
Heat Treatment
Protective atmosphere for metal heat treatment.
Packing
20 kg or 40 kg airtight HDPE drum, or 500 kg woven big bag.
Minimum order 1,000 kg per grade. Private-label packing and documents in the buyer’s name are available for distributors.
Documents
- Technical Data Sheet (TDS) — typical specification for this grade — Download PDF
- Safety Data Sheet (SDS) — in the format required by the destination market — Download PDF
- Certificate of Analysis — issued per lot, from the measured batch results
Factory-direct supply
Manufactured at our own plant in Zhengzhou, Henan
6,000 tonnes of annual capacity. We test every lot before release and ship with a lot-specific COA. Buyers may audit the plant or appoint their own inspector.
How this grade ships
Frequently asked questions
How does carbon molecular sieve separate nitrogen?
By adsorption rate, not equilibrium capacity: oxygen diffuses into the pore much faster than nitrogen, so a short cycle keeps oxygen on the bed and lets nitrogen through.
What purity can be reached?
95% up to 99.999%, depending on plant design, pressure, cycle time and the grade selected. Tell us the purity and flow you need and we will recommend a grade.
What is the minimum order and packing?
1,000 kg per grade, in 20 kg or 40 kg airtight drums or 500 kg big bags.
Where this grade is used
- Air separation — PSA nitrogen generation — carbon molecular sieve separates nitrogen from air by adsorption rate, not by pore size
- Not sure which duty fits — compare all applications
Ask for this grade
Email sales@zeolitemolecularsieve.com or call +86 153 7878 8801 — 08:30–18:00 China time, Monday to Saturday.